Gina O'Brien, MD
NPI 1568426039 · Pediatrics Physician · Keene, NH
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gina O'Brien, MD is a Pediatrics Physician provider in Keene, NH (NPI 1568426039).
Provider details
- NPI number
- 1568426039
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 205161 (MA)
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
3 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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 12 | — |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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 (2)
- 225 Leominster RdSterling, MA 01564-2148Phone: (978) 422-6900Fax: (978) 422-7561
- 580 Court StKeene, NH 03431-1718Phone: (603) 354-5400
Registry dates
- Enumerated
- 2006-04-13
- Last updated
- 2022-08-05
- Certified
- 2022-08-05
Frequently asked questions
- What is Gina O'Brien's NPI number?
- Gina O'Brien's National Provider Identifier (NPI) is 1568426039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gina O'Brien's specialty?
- Gina O'Brien is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Gina O'Brien located?
- Gina O'Brien's practice location on file with NPPES is 590 Court St, Keene, NH 03431-1719.
- What is Gina O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Gina O'Brien is (603) 354-5400.
- Does Gina O'Brien accept Medicare?
- Gina O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gina O'Brien's NPI active?
- Yes — Gina O'Brien's NPI (1568426039) is active in the NPPES registry as of the last update on 2022-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.