William Gay, M.D.
NPI 1609131879 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Saint Louis, MO
William Gay, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Saint Louis, MO (NPI 1609131879).
Provider details
- NPI number
- 1609131879
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 108622 (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
13 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
- 2012-07-12
- Last updated
- 2012-07-12
Frequently asked questions
- What is William Gay's NPI number?
- William Gay's National Provider Identifier (NPI) is 1609131879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gay's specialty?
- William Gay is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is William Gay located?
- William Gay's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is William Gay's phone number?
- The practice phone number listed in the NPPES registry for William Gay is (314) 747-1315.
- Is William Gay's NPI active?
- Yes — William Gay's NPI (1609131879) is active in the NPPES registry as of the last update on 2012-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.