Robert Nathanson, M.D.
NPI 1316267875 · Hospitalist Physician · San Antonio, TX
Robert Nathanson, M.D. is a Hospitalist Physician provider in San Antonio, TX (NPI 1316267875).
Provider details
- NPI number
- 1316267875
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- P5558 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-06-08
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is Robert Nathanson's NPI number?
- Robert Nathanson's National Provider Identifier (NPI) is 1316267875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Nathanson's specialty?
- Robert Nathanson is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Nathanson located?
- Robert Nathanson's practice location on file with NPPES is 4502 Medical Dr, San Antonio, TX 78229-4402.
- What is Robert Nathanson's phone number?
- The practice phone number listed in the NPPES registry for Robert Nathanson is (210) 358-4000.
- Is Robert Nathanson's NPI active?
- Yes — Robert Nathanson's NPI (1316267875) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.