DR. MIRIAM P ONEIL MD
NPI 1679192835
Internal Medicine - Geriatric Medicine in Farmington, CT

Q: What is Miriam Oneil's NPI number?

The NPI number for Miriam Oneil is 1679192835. It was assigned to this individual provider in the NPPES registry on April 8, 2020.

Q: What is Miriam Oneil's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Miriam Oneil was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 08, 2020PECOS EnrolledAccepts Medicare Assignment

21 SOUTH RD, FARMINGTON, CT 06032(860) 679-4862(860) 679-0123 Get Directions Write a Review

NPPES record last updated: September 16, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 16, 2025, Aug 11, 2025, Jun 11, 2024 and 1 more (4 updates tracked since 2020).

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About Dr. Miriam P Oneil Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MIRIAM P ONEIL MD (NPI 1679192835) is an individual geriatric medicine provider in Farmington, Connecticut, licensed in Connecticut (82634) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in New Haven, and is a graduate of University Of Massachusetts Medical School (2020).

NPPES Registry Identity

NPI1679192835

Entity TypeIndividualFemale

Primary Taxonomy207RG0300X

Provider Legal NameDR. MIRIAM P ONEILCredential: MD

Location Address21 SOUTH RDFarmington, CT 06032-2482

Mailing Address20 York StNew Haven, CT 06510-3220 · (203) 688-4242

Phone(860) 679-4862

Fax(860) 679-0123

Sole ProprietorNo

Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 2020

Enumeration DateApril 8, 2020

Last NPPES UpdateSeptember 16, 20254 updates tracked since enumeration

NPPES CertifiedSeptember 16, 2025

✔ NPI 1679192835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in CT · 82634

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

21 SOUTH RD, Farmington, CT 06032

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Secondary Practice Location 1

Location 120 York StNew Haven, CT 06510-3220 · Phone (203) 688-4242

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Miriam P Oneil Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880194182

PECOS Enrollment IDI20250821003131

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$183.10 typical visit price

range $60.82 – $183.10

Typical copayment $45.77 (range $15.20 – $45.77)

Most-billed visit code 99205

Established Patient

$106.68 typical visit price

range $19.76 – $149.26

Typical copayment $26.67 (range $4.94 – $37.31)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHRISTY AURIGEMMA AU.D.

Audiologist

21 SOUTH RD
FARMINGTON, CT 06032

Capitol Planning Region (860) 284-4940

HAO FENG M.D.

Dermatology (MOHS-Micrographic Surgery)

21 SOUTH RD
FARMINGTON, CT 06032

Capitol Planning Region (860) 679-4600

PHILIP E KERR MD

Dermatology

21 SOUTH RD, DERMATOLOGY
FARMINGTON, CT 06032

Capitol Planning Region (860) 679-4600

ADRIENNE B BERKE MD

Dermatology (Dermatopathology)

21 SOUTH RD, DERMATOLOTY
FARMINGTON, CT 06032

Capitol Planning Region (860) 679-4600

CHRISTINA GARCIA APRN

Nurse Practitioner (Family)

21 SOUTH RD
FARMINGTON, CT 06032

Capitol Planning Region (860) 679-4600

DR. ARNI KJALAR KRISTJANSSON M.D.

Dermatology (Dermatopathology)

21 SOUTH RD
FARMINGTON, CT 06032

Capitol Planning Region (860) 679-3474

ELIZABETH DEGNALL MD

Internal Medicine (Geriatric Medicine)

21 SOUTH RD
FARMINGTON, CT 06032

Capitol Planning Region (617) 638-6500

JENNA BORDELON KELSEY MD

Dermatology

21 SOUTH RD
FARMINGTON, CT 06032

Capitol Planning Region (860) 679-4600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Miriam Oneil's NPI number?

The NPI number for Miriam Oneil is 1679192835. It was assigned to this individual provider in the NPPES registry on April 8, 2020.

Where is Miriam Oneil located?

Miriam Oneil practices at 21 South Rd, Farmington, CT 06032. The listed phone number is (860) 679-4862.

What is Miriam Oneil's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Miriam Oneil enrolled in Medicare?

Yes. Miriam Oneil is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Miriam Oneil was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.