dearnana 0.1.0

Find and rank nursing homes using CMS public data

DearNana

Find trustworthy nursing homes using CMS public data — not ads, not referrals.

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What It Does

DearNana searches the CMS (Centers for Medicare & Medicaid Services) public database of all Medicare/Medicaid certified nursing homes in the US and scores each facility on objective criteria derived entirely from government data. Your description of your loved one's care needs personalizes the ranking: it is matched against CMS's per-facility clinical quality measures (antipsychotic medication rates for dementia, falls with major injury for fall risk, pressure ulcers for wound care, and more). Each facility's ownership chain — and the chain's average track record — is surfaced alongside the score. No facility pays to be included, and no referral fees are ever involved. CMS refreshes the underlying datasets monthly.

DearNana runs fully for free — no API key, no tokens. AI is an optional final layer that rewrites the results into a plain-language report; everything else works the same with or without it.

Features

Works with no API key, no tokens:

• 🏥 Quality ranking of every certified nursing home near you, from objective CMS data
• 🎯 Condition-aware personalization — describe care needs in plain text, or build the profile with --interactive guided questions (no AI)
• 📋 Detailed rule-based report — per-facility strengths/weaknesses, automatically surfaced red flags (abuse flags, CMS Special Focus status, actual-harm citations, penalties, ownership changes), and concrete questions to ask on a tour
• 📊 Side-by-side comparison table of the top results in every run
• 🔎 Filters — --min-stars, --exclude-abuse, --exclude-special-focus, --sprinkler-only, --independent-only
• 💾 Export & watchlist — save results as CSV/HTML to share with family, and track picks across runs with a local watchlist

Optional, when you want it:

• 🤖 AI-written recommendation via the Anthropic API, or a fully local model through Ollama (nothing leaves your machine)

See Using DearNana Without AI Tokens for a complete token-free workflow.

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Installation

pip install dearnana

Until the first PyPI release lands, install straight from GitHub:

pip install git+https://github.com/miaomiaocui/dearnana

Requirements:

• Python 3.11 or higher
• No API key required — DearNana works fully for free; see Using DearNana Without AI Tokens
• For an AI-written recommendation (optional): set the ANTHROPIC_API_KEY environment variable (get a key at console.anthropic.com)
• Use --no-ai (or just leave the key unset) to get a detailed rule-based report instead — ranking and condition personalization still work using CMS data only

Optional environment variables:

Variable	Default	Purpose
DEARNANA_REPORTS_DIR	./dearnana-reports	Where markdown reports are written
DEARNANA_LLM_PROVIDER	anthropic	anthropic (API key required) or ollama (local models)
DEARNANA_LLM_MODEL	claude-sonnet-4-6 / llama3.1:8b	Model for the recommendation report (default depends on provider)
DEARNANA_PARSER_MODEL	claude-haiku-4-5 / same as LLM model	Model for condition parsing
DEARNANA_OLLAMA_HOST	http://localhost:11434	Ollama server address

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Run Fully Local with Ollama

Prefer not to send anything to a cloud API? DearNana can use a local model via Ollama — the care-needs description never leaves your machine (the only network calls are to CMS for facility data and OpenStreetMap for geocoding your search address):

ollama pull llama3.1:8b

export DEARNANA_LLM_PROVIDER=ollama
dearnana --address "Bellevue, WA 98008" --budget 8000 \
  --condition "Mom has moderate dementia and has fallen twice"

No API key needed. Pick any model you have pulled with DEARNANA_LLM_MODEL (e.g. llama3.1:70b, qwen2.5:14b).

Quality note: local model output quality varies widely by model and size — expect smaller models (e.g. 8B) to produce more generic recommendation reports than the cloud default. Try a couple of models you can run and compare. The condition-parsing step works well even on small models, and if the model fails or Ollama isn't running, DearNana degrades gracefully to keyword-based personalization and the data-only ranking.

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Quick Start (CLI)

dearnana \
  --address "Bellevue, WA 98008" \
  --budget 8000 \
  --condition "Mom has moderate dementia, needs memory care and mobility assistance" \
  --radius 25 \
  --top 5

Flag reference:

Flag	Required	Description
--address	Yes	US address or city/zip to search near
--budget	Yes	Monthly budget in dollars
--condition	Yes*	Description of care needs — personalizes the ranking and the report (*optional with --interactive)
--interactive	No	Answer guided questions to build the needs profile — no AI, nothing leaves your computer
--radius	No	Search radius in miles (default: 50)
--top	No	Number of results to show (default: 5)
--no-ai	No	Skip the AI call; produce a detailed rule-based report instead
--min-stars	No	Only include facilities with at least this CMS overall rating (1–5)
--exclude-abuse	No	Exclude facilities flagged for abuse/neglect
--exclude-special-focus	No	Exclude CMS Special Focus facilities
--sprinkler-only	No	Only include facilities with full sprinkler coverage
--independent-only	No	Exclude chain-affiliated facilities
--export csv|html	No	Also write results as a CSV or HTML file next to the report
--save-watchlist	No	Save the top picks to a local watchlist (~/.dearnana/watchlist.json)
--show-watchlist	No	Print your saved watchlist and exit

Example output (real run, June 2026, abbreviated):

Geocoding: Bellevue, WA 98008
  -> (47.5851, -122.1470) in WA
Personalizing for: dementia / memory care (long-stay antipsychotic use, ...);
  fall risk (falls with major injury, ...) — parsed via keyword matching
Fetching nursing homes in WA...
  -> 194 facilities found (2 not yet rated by CMS)
Fetching care quality measures for WA...
Ranking within 25.0 miles...

--- DearNana Top 5 ---

#1. COVENANT SHORES HEALTH CENTER
    9107 FORTUNA DRIVE, MERCER ISLAND, WA 98040
    3.0 mi | Score: 86.1/100 | CMS: 5/5 | Phone: [phone]
    Chain: COVENANT LIVING (15 facilities, avg 4.3/5)
    long-stay antipsychotic use: 10.3% vs state median 14.0% (better than 75% of WA facilities)
    falls with major injury: 0.0% vs state median 2.3% (better than 100% of WA facilities)

At a glance:

| # | Facility                      | Dist    | Score | CMS | Staffing | Turnover | Penalties | Abuse | Chain           |
| - | ----------------------------- | ------- | ----- | --- | -------- | -------- | --------- | ----- | --------------- |
| 1 | COVENANT SHORES HEALTH CENTER | 3.0 mi  | 86.1  | 5/5 | 5/5      | 49%      | 0         | —     | COVENANT LIVING |
| 2 | RAINIER REHABILITATION        | 28.6 mi | 85.0  | 5/5 | 3/5      | 20%      | 0         | —     | THE ENSIGN GROUP|

And the rule-based recommendation (no API key needed) — abbreviated:

### #1. COVENANT SHORES HEALTH CENTER
3.0 mi away  |  DearNana score: 86.1/100  |  CMS: 5/5 stars

**Strong on:** CMS overall rating (100/100), staffing levels (100/100), proximity (94/100).

Care measures relevant to the described needs (lower is better):
  - long-stay antipsychotic use: 10.3% (state median 14.0%) — better than 75% of facilities in the state

**Ask on your tour:**
  - What does a typical day look like for a resident with my loved one's needs, and who would I call with concerns?

**Best overall match: #1. COVENANT SHORES HEALTH CENTER** (86.1/100 — strongest on CMS overall rating, staffing levels)...

(Facility data shown is from the CMS dataset at the time of the run and will change as CMS refreshes it.)

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Using DearNana Without AI Tokens

DearNana is fully useful with no API key and no tokens. Every step except the final write-up — geocoding, fetching CMS data, scoring, ranking, and condition matching — is plain Python that runs for free. When no ANTHROPIC_API_KEY is set (or you pass --no-ai), DearNana produces a detailed rule-based report instead of the AI one: per-facility strengths and weaknesses, automatically surfaced red flags (abuse flags, CMS Special Focus status, actual-harm inspection citations, penalties, ownership changes), condition-fit measures, and concrete questions to ask on a tour — all derived from the same CMS data.

A fully token-free workflow:

# Build the needs profile by answering guided questions (no AI), filter,
# export a CSV to share with family, and save the picks to a watchlist:
dearnana \
  --address "Bellevue, WA 98008" --budget 8000 \
  --interactive \
  --min-stars 3 --exclude-abuse \
  --export csv --save-watchlist

# Review your saved picks anytime:
dearnana --show-watchlist

You also get a side-by-side comparison table of the top results in every run, and the filter flags above narrow the pool before ranking. For a private local AI write-up with no cloud tokens, see Run Fully Local with Ollama above.

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Library Usage

DearNana is also importable as a Python library. The FastAPI backend uses this pattern:

from dearnana import (
    build_measure_weights,
    compute_measure_benchmarks,
    geocode_address,
    parse_condition,
    rank_facilities,
    score_condition_match,
)
from dearnana.cms_client import fetch_facilities_by_state, fetch_mds_measures_by_state

lat, lng, state = geocode_address("Bellevue, WA 98008")
facilities = fetch_facilities_by_state(state)

# Optional: personalize the ranking with a needs profile
profile = parse_condition("moderate dementia, has fallen twice")
weights = build_measure_weights(profile)
mds = fetch_mds_measures_by_state(state)
benchmarks = compute_measure_benchmarks(mds)
condition_scores = {
    ccn: score_condition_match(m, weights, benchmarks) for ccn, m in mds.items()
}

ranked = rank_facilities(
    facilities, lat, lng, radius_miles=25, top_n=5,
    condition_scores=condition_scores,
)

for r in ranked:
    print(f"{r.facility.name}: {r.composite_score}/100")

All public-facing functions are importable directly from the dearnana package. No subprocess calls are required.

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How Scores Are Calculated

DearNana uses a weighted composite score (0–100) based entirely on public CMS data. Here's what goes into it:

Component	Weight	What it measures
Overall CMS Rating	25%	CMS's own 1–5 star summary rating based on inspections, staffing, and quality measures
Health Inspection	20%	Results of state health inspections — citations for care problems, medication errors, and safety issues
Staffing Quality	20%	Blend of the CMS staffing star rating and actual nurse hours per resident per day vs. the 4.1 hrs/day minimum recommended by the 2001 CMS-commissioned staffing study
Staff Stability	10%	Annual nursing staff turnover rate — high turnover often signals poor management and care continuity
Penalty History	10%	Number of enforcement actions and total fines levied by CMS
Distance	10%	Proximity to the address you searched — closer facilities score higher
Fire Safety	5%	Whether the facility has full sprinkler coverage

Condition match (15%, when care needs are recognized): Your --condition text is parsed into a needs profile (via a small AI call, or a built-in keyword matcher when no API key is set or --no-ai is used). Each need maps to CMS MDS clinical quality measures — e.g. dementia → long-stay antipsychotic medication rate and physical restraint use; fall risk → falls with major injury. Each facility's measures are scored against the state percentile distribution (lower is better for all tracked measures). When the condition component is active, the base weights above are scaled by 0.85 so all weights still sum to 100%. If no needs are recognized in the text, the ranking is identical to the base weights.

Abuse flag: If a facility has an active CMS abuse flag, 50 points are deducted from its score — this is treated as a near-disqualifying finding. When the needs profile includes a vulnerable population (dementia or mental health), the deduction increases to 60 points.

Missing data: Facilities with missing data for a component receive a neutral score (50) for that component. Facilities not yet rated by CMS (typically newer facilities) are included with neutral component scores and labeled "not yet rated".

Ownership transparency (not scored): Each facility's chain affiliation and the chain's average CMS ratings are shown alongside results. Warnings are flagged — not folded into the score, since chain averages aggregate the same star ratings already weighted above — when a facility belongs to a chain averaging ≤ 2.5 stars, changed ownership in the last 12 months, or carries CMS Special Focus status. For top picks, individual owners (name, role, percentage) from the CMS Ownership dataset are included in the report.

Scoring details

• Overall CMS Rating maps the 1–5 star summary directly to 0–100 (5 stars = 100, 1 star = 20).
• Staffing Quality is a weighted blend: 60% from the CMS staffing star rating, 40% from actual nurse hours compared to 4.1 hrs/resident/day — the minimum recommended by the 2001 CMS-commissioned staffing study (the actual national average is lower, ~3.6 hrs). If only one part is reported, it is used alone.
• Staff Stability inverts the turnover rate against national reference points (~52% total nursing, ~50% RN — CMS staffing-data analyses report national means of roughly 53% and 52%). A facility at the reference point scores 50; a facility with 0% turnover scores 100.
• Penalty History starts at 100 and deducts 15 points per enforcement action, plus 5 points per $10,000 in total fines.
• Distance uses linear decay: 100 at 0 miles, 0 at the search radius boundary.
• Fire Safety gives 100 for full sprinkler coverage, 50 for partial, 0 for none, 50 if unreported.
• Condition Match scores each relevant MDS measure as 100 × (1 − state percentile) and averages them by need weight. Measures with missing data, or with fewer than 20 reporting facilities in the state, score a neutral 50.

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Data Source

Attribute	Detail
Source	CMS Provider Data Catalog
Datasets	Provider information (ratings, staffing, chain), MDS Quality Measures (clinical measures), Health Deficiencies, Penalties, Ownership
Updated	Monthly by CMS (per dataset metadata)
Coverage	All Medicare/Medicaid certified nursing homes in the US (~14,700 facilities as of mid-2026)
Cost data	State-level monthly medians for semi-private rooms from the CareScout (Genworth) Cost of Care Survey 2024 — not facility-specific pricing
Caching	API responses are cached for 24h under ~/.dearnana/cache

CMS does not publish per-facility pricing. Budget comparisons use state-level median costs as a rough proxy. Contact facilities directly for current rates. Many facilities accept Medicaid — contact them directly if your budget is below the state median.

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Disclaimer

DearNana is a decision-support tool, not a substitute for professional medical or legal advice. Always visit facilities in person, speak with staff, and consult with a healthcare professional before making placement decisions. See DISCLAIMER.md for full details.

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Contributing

Issues and PRs are welcome. Before contributing changes to scoring weights or methodology, please read DISCLAIMER.md for notes on data accuracy and known limitations. Scoring changes should include a rationale and a before/after comparison on a representative set of facilities.

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License

MIT — see LICENSE