Theron O'Halloran, MD
NPI 1093344145 · Obstetrics & Gynecology Physician · Glen Burnie, MD
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theron O'Halloran, MD is a Obstetrics & Gynecology Physician provider in Glen Burnie, MD (NPI 1093344145).
Provider details
- NPI number
- 1093344145
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0100658 (MD)
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
6 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-01
- Last updated
- 2025-09-23
- Certified
- 2025-09-23
Frequently asked questions
- What is Theron O'Halloran's NPI number?
- Theron O'Halloran's National Provider Identifier (NPI) is 1093344145, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theron O'Halloran's specialty?
- Theron O'Halloran is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Theron O'Halloran located?
- Theron O'Halloran's practice location on file with NPPES is 301 Hospital Dr, Glen Burnie, MD 21061-5803.
- What is Theron O'Halloran's phone number?
- The practice phone number listed in the NPPES registry for Theron O'Halloran is (410) 787-4000.
- Does Theron O'Halloran accept Medicare?
- Theron O'Halloran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theron O'Halloran's NPI active?
- Yes — Theron O'Halloran's NPI (1093344145) is active in the NPPES registry as of the last update on 2025-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.