Geraldine O'Sullivan Coyne, M.D, PHD
NPI 1205182318 · Medical Oncology Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Geraldine O'Sullivan Coyne, M.D, PHD is a Medical Oncology Physician provider in Bethesda, MD (NPI 1205182318).
Provider details
- NPI number
- 1205182318
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 153757 (ZZ)
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
13 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
- 2012-07-25
- Last updated
- 2012-07-25
Frequently asked questions
- What is Geraldine O'Sullivan Coyne's NPI number?
- Geraldine O'Sullivan Coyne's National Provider Identifier (NPI) is 1205182318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Geraldine O'Sullivan Coyne's specialty?
- Geraldine O'Sullivan Coyne is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Geraldine O'Sullivan Coyne located?
- Geraldine O'Sullivan Coyne's practice location on file with NPPES is 10 Center Dr, Bethesda, MD 20892-0001.
- What is Geraldine O'Sullivan Coyne's phone number?
- The practice phone number listed in the NPPES registry for Geraldine O'Sullivan Coyne is (301) 496-4916.
- Does Geraldine O'Sullivan Coyne accept Medicare?
- Geraldine O'Sullivan Coyne is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Geraldine O'Sullivan Coyne's NPI active?
- Yes — Geraldine O'Sullivan Coyne's NPI (1205182318) is active in the NPPES registry as of the last update on 2012-07-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.