Miriam Oneil, MD
NPI 1679192835 · Geriatric Medicine (Internal Medicine) Physician · Farmington, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Miriam Oneil, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Farmington, CT (NPI 1679192835).
Provider details
- NPI number
- 1679192835
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 82634 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 30 | 11 |
| Amlodipine Besylate | 15 | — |
| Levothyroxine Sodium | 15 | — |
| Trazodone Hcl | 14 | — |
| Apixabanbrand: Eliquis | 12 | — |
| Omeprazole | 11 | — |
Medicare Part D only. 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
Additional practice locations (1)
- 20 York StNew Haven, CT 06510-3220Phone: (203) 688-4242
Registry dates
- Enumerated
- 2020-04-08
- Last updated
- 2025-09-16
- Certified
- 2025-09-16
Frequently asked questions
- What is Miriam Oneil's NPI number?
- Miriam Oneil's National Provider Identifier (NPI) is 1679192835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Miriam Oneil's specialty?
- Miriam Oneil is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Miriam Oneil located?
- Miriam Oneil's practice location on file with NPPES is 21 South Rd, Farmington, CT 06032-2482.
- What is Miriam Oneil's phone number?
- The practice phone number listed in the NPPES registry for Miriam Oneil is (860) 679-4862.
- Does Miriam Oneil accept Medicare?
- Miriam Oneil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Miriam Oneil's NPI active?
- Yes — Miriam Oneil's NPI (1679192835) is active in the NPPES registry as of the last update on 2025-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.