Brian Agan, M.D.
NPI 1669434718 · Infectious Disease Physician · Bethesda, MD
Enrolled with Medicare as Order and Referring Only - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Agan, M.D. is a Infectious Disease Physician provider in Bethesda, MD (NPI 1669434718).
Provider details
- NPI number
- 1669434718
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0081449 (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
20 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
- 2006-04-04
- Last updated
- 2023-11-02
- Certified
- 2023-11-02
Frequently asked questions
- What is Brian Agan's NPI number?
- Brian Agan's National Provider Identifier (NPI) is 1669434718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Agan's specialty?
- Brian Agan is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Agan located?
- Brian Agan's practice location on file with NPPES is 8901 Rockville Pike, Bethesda, MD 20889-5095.
- What is Brian Agan's phone number?
- The practice phone number listed in the NPPES registry for Brian Agan is (301) 295-6400.
- Does Brian Agan accept Medicare?
- Brian Agan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Agan's NPI active?
- Yes — Brian Agan's NPI (1669434718) is active in the NPPES registry as of the last update on 2023-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.