Leonard Fagan, M.D.
NPI 1679570808 · Cardiovascular Disease Physician · Saint Louis, MO
Leonard Fagan, M.D. is a Cardiovascular Disease Physician provider in Saint Louis, MO (NPI 1679570808).
Provider details
- NPI number
- 1679570808
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R5G47 (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
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
- 2005-07-01
- Last updated
- 2016-05-20
Frequently asked questions
- What is Leonard Fagan's NPI number?
- Leonard Fagan's National Provider Identifier (NPI) is 1679570808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Fagan's specialty?
- Leonard Fagan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Fagan located?
- Leonard Fagan's practice location on file with NPPES is 1001 S Kirkwood Rd, Saint Louis, MO 63122-7254.
- What is Leonard Fagan's phone number?
- The practice phone number listed in the NPPES registry for Leonard Fagan is (314) 965-9980.
- Is Leonard Fagan's NPI active?
- Yes — Leonard Fagan's NPI (1679570808) is active in the NPPES registry as of the last update on 2016-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.