Margaret Rathier, MD
NPI 1194723361 · Geriatric Medicine (Internal Medicine) Physician · Farmington, CT
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Rathier, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Farmington, CT (NPI 1194723361).
Provider details
- NPI number
- 1194723361
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 029812 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Levothyroxine Sodium | 45 |
| Tamsulosin Hcl | 26 |
| Finasteride | 21 |
| Sertraline Hcl | 16 |
| Trazodone Hcl | 15 |
| Atorvastatin Calcium | 15 |
| Metoprolol Tartrate | 15 |
| Famotidine | 13 |
| Lacosamide | 12 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-12
- Last updated
- 2022-07-11
Frequently asked questions
- What is Margaret Rathier's NPI number?
- Margaret Rathier's National Provider Identifier (NPI) is 1194723361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Rathier's specialty?
- Margaret Rathier is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Rathier located?
- Margaret Rathier's practice location on file with NPPES is 263 Farmington Ave, Farmington, CT 06030-0001.
- What is Margaret Rathier's phone number?
- The practice phone number listed in the NPPES registry for Margaret Rathier is (860) 679-8400.
- Does Margaret Rathier accept Medicare?
- Margaret Rathier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Rathier's NPI active?
- Yes — Margaret Rathier's NPI (1194723361) is active in the NPPES registry as of the last update on 2022-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.