Jonathan Witonsky, M.D.
NPI 1679005813 · Pediatric Allergy/Immunology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Witonsky, M.D. is a Pediatric Allergy/Immunology Physician provider in San Francisco, CA (NPI 1679005813).
Provider details
- NPI number
- 1679005813
- Entity type
- Individual
- Primary specialty
- Pediatric Allergy/Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A160639 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1200 El Camino RealSouth San Francisco, CA 94080-3299Phone: (650) 742-2000
Registry dates
- Enumerated
- 2017-03-28
- Last updated
- 2023-04-19
- Certified
- 2023-04-18
Frequently asked questions
- What is Jonathan Witonsky's NPI number?
- Jonathan Witonsky's National Provider Identifier (NPI) is 1679005813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Witonsky's specialty?
- Jonathan Witonsky is listed in the NPPES registry with a primary specialty of Pediatric Allergy/Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Witonsky located?
- Jonathan Witonsky's practice location on file with NPPES is 1825 4th St Fl 6, San Francisco, CA 94143-2350.
- What is Jonathan Witonsky's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Witonsky is (415) 353-7337.
- Does Jonathan Witonsky accept Medicare?
- Jonathan Witonsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Witonsky's NPI active?
- Yes — Jonathan Witonsky's NPI (1679005813) is active in the NPPES registry as of the last update on 2023-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.