Megan Halloran
NPI 1336934850 · Obstetrics & Gynecology Physician · Boston, MA
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Megan Halloran is a Obstetrics & Gynecology Physician provider in Boston, MA (NPI 1336934850).
Provider details
- NPI number
- 1336934850
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 3018781 (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
1 yr 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-04-14
- Last updated
- 2025-04-14
- Certified
- 2025-03-28
Frequently asked questions
- What is Megan Halloran's NPI number?
- Megan Halloran's National Provider Identifier (NPI) is 1336934850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Megan Halloran's specialty?
- Megan Halloran is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Megan Halloran located?
- Megan Halloran's practice location on file with NPPES is 800 Washington St, Boston, MA 02111-1552.
- What is Megan Halloran's phone number?
- The practice phone number listed in the NPPES registry for Megan Halloran is (617) 636-5000.
- Does Megan Halloran accept Medicare?
- Megan Halloran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Megan Halloran's NPI active?
- Yes — Megan Halloran's NPI (1336934850) is active in the NPPES registry as of the last update on 2025-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.