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Pediatric Medicine

Jonathan I. Witonsky, MD

Sees patients in San Francisco, CA · California

Summary

Jonathan I. Witonsky, MD (Pediatric Medicine) is enrolled with Medicare at 1 practice location in San Francisco, CA. NPI 1679005813. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(415) 476‑4029 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Jonathan I. Witonsky, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

1Practice location
Pediatric MedicinePrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
Albert Einstein College Of Medicine Of Yeshiva UniversityMedical school
MaleGender (as listed)
University of California San FranciscoGroup practice

Quick answers

Where does Jonathan I. Witonsky see patients?
Medicare's clinician data lists 1 practice location in San Francisco, CA. Call before your visit to confirm the address.
What is Jonathan I. Witonsky's specialty?
Medicare lists Pediatric Medicine as the primary specialty, and also Allergy/Immunology.
Does Jonathan I. Witonsky accept Medicare assignment?
Yes. Medicare's clinician data says Jonathan I. Witonsky accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Jonathan I. Witonsky?
(415) 476-4029, as listed in official Medicare / NPI Registry data.
What is Jonathan I. Witonsky's NPI number?
1679005813. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Jonathan I. Witonsky is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jonathan I. Witonsky as a member of this group (CMS data updated 2026-10-02).

  • University of California San Francisco1,839 clinicians in the group

Specialties

Find other Pediatric Medicine doctors in California →

Other pediatricians in San Francisco

Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.

All pediatricians in San Francisco →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679005813
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians