Frank Brennan, M.D.
NPI 1659380574 · Vascular & Interventional Radiology Physician · Easton, MD
Frank Brennan, M.D. is a Vascular & Interventional Radiology Physician provider in Easton, MD (NPI 1659380574).
Provider details
- NPI number
- 1659380574
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0056886 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-08-07
- Last updated
- 2025-09-11
Frequently asked questions
- What is Frank Brennan's NPI number?
- Frank Brennan's National Provider Identifier (NPI) is 1659380574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frank Brennan's specialty?
- Frank Brennan is listed in the NPPES registry with a primary specialty of Vascular & Interventional Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Frank Brennan located?
- Frank Brennan's practice location on file with NPPES is 219 S Washington St, Easton, MD 21601-2913.
- What is Frank Brennan's phone number?
- The practice phone number listed in the NPPES registry for Frank Brennan is (410) 822-1000.
- Is Frank Brennan's NPI active?
- Yes — Frank Brennan's NPI (1659380574) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.