Joseph Thayil, MD
NPI 1275528978 · Geriatric Medicine (Internal Medicine) Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Thayil, MD is a Geriatric Medicine (Internal Medicine) Physician provider in San Antonio, TX (NPI 1275528978).
Provider details
- NPI number
- 1275528978
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- M2153 (TX)
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
- 2005-09-19
- Last updated
- 2025-04-22
- Certified
- 2025-04-22
Frequently asked questions
- What is Joseph Thayil's NPI number?
- Joseph Thayil's National Provider Identifier (NPI) is 1275528978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Thayil's specialty?
- Joseph Thayil is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Thayil located?
- Joseph Thayil's practice location on file with NPPES is 4129 Naco Perrin Blvd, San Antonio, TX 78217-2505.
- What is Joseph Thayil's phone number?
- The practice phone number listed in the NPPES registry for Joseph Thayil is (210) 722-8106.
- Does Joseph Thayil accept Medicare?
- Joseph Thayil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Thayil's NPI active?
- Yes — Joseph Thayil's NPI (1275528978) is active in the NPPES registry as of the last update on 2025-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.