William Dunagan, MD
NPI 1821016247 · Infectious Disease Physician · Saint Louis, MO
William Dunagan, MD is a Infectious Disease Physician provider in Saint Louis, MO (NPI 1821016247).
Provider details
- NPI number
- 1821016247
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R1F45 (MO)
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
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
- 2006-07-17
- Last updated
- 2025-04-17
Frequently asked questions
- What is William Dunagan's NPI number?
- William Dunagan's National Provider Identifier (NPI) is 1821016247, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Dunagan's specialty?
- William Dunagan is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Dunagan located?
- William Dunagan's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is William Dunagan's phone number?
- The practice phone number listed in the NPPES registry for William Dunagan is (314) 747-3000.
- Is William Dunagan's NPI active?
- Yes — William Dunagan's NPI (1821016247) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.