William Keenan, MD
NPI 1023063393 · Neonatal-Perinatal Medicine Physician · Saint Louis, MO
William Keenan, MD is a Neonatal-Perinatal Medicine Physician provider in Saint Louis, MO (NPI 1023063393).
Provider details
- NPI number
- 1023063393
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R8A21 (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
- 2006-05-24
- Last updated
- 2015-08-26
Frequently asked questions
- What is William Keenan's NPI number?
- William Keenan's National Provider Identifier (NPI) is 1023063393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Keenan's specialty?
- William Keenan is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Keenan located?
- William Keenan's practice location on file with NPPES is 1465 S Grand Blvd, Saint Louis, MO 63104-1003.
- What is William Keenan's phone number?
- The practice phone number listed in the NPPES registry for William Keenan is (314) 268-4101.
- Is William Keenan's NPI active?
- Yes — William Keenan's NPI (1023063393) is active in the NPPES registry as of the last update on 2015-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.