John Seidenfeld, M.D.
NPI 1336321686 · Pulmonary Disease Physician · San Antonio, TX
John Seidenfeld, M.D. is a Pulmonary Disease Physician provider in San Antonio, TX (NPI 1336321686).
Provider details
- NPI number
- 1336321686
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G6393 (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
18 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
- 2007-11-28
- Last updated
- 2008-02-08
Frequently asked questions
- What is John Seidenfeld's NPI number?
- John Seidenfeld's National Provider Identifier (NPI) is 1336321686, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Seidenfeld's specialty?
- John Seidenfeld is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Seidenfeld located?
- John Seidenfeld's practice location on file with NPPES is Suite 703 414 Navarro, San Antonio, TX 78205-2515.
- What is John Seidenfeld's phone number?
- The practice phone number listed in the NPPES registry for John Seidenfeld is (210) 224-4811.
- Is John Seidenfeld's NPI active?
- Yes — John Seidenfeld's NPI (1336321686) is active in the NPPES registry as of the last update on 2008-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.