Dr Jonathan Isaac Witonsky, MD - Medicare Pediatrics in San Francisco, CA

  1. Home
  2. Pediatrics
  3. CA
  4. San Francisco
Dr Jonathan Isaac Witonsky, MD is a medicare enrolled "Pediatrics - Pediatric Allergy/immunology" physician in San Francisco, California. His current practice location is 1825 4th St Fl 6, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-7337.

Dr Jonathan Isaac Witonsky is licensed to practice in California (license number A160639) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1679005813.

Contact Information

Dr Jonathan Isaac Witonsky, MD
1825 4th St Fl 6,
San Francisco, CA 94143-2350
(415) 353-7337
Not Available

Map and Direction




Physician's Profile

Full NameDr Jonathan Isaac Witonsky
GenderMale
SpecialityPediatrics - Pediatric Allergy/immunology
Location1825 4th St Fl 6, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1679005813
  • Provider Enumeration Date: 03/28/2017
  • Last Update Date: 04/19/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1456691021
  • Enrollment ID: I20220706002775

Medical Identifiers

Medical identifiers for Dr Jonathan Isaac Witonsky such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679005813NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology A160639 (California)Secondary
208000000XPediatrics A160639 (California)Secondary
2080P0201XPediatrics - Pediatric Allergy/immunology A160639 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Jonathan Isaac Witonsky allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameUcsf Pediatrics Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376614016
PECOS PAC ID: 6204749112
Enrollment ID: O20031106000823
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Jonathan Isaac Witonsky is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Jonathan Isaac Witonsky, MD
550 16th St Fl 4,
San Francisco, CA 94143-2549

Ph: (415) 353-7337		Dr Jonathan Isaac Witonsky, MD
1825 4th St Fl 6,
San Francisco, CA 94143-2350

Ph: (415) 353-7337

Reviews and Comments


Pediatrics Doctors in San Francisco, CA

Dr. Kathryn Rachel Davis, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 505 Parnassus Ave # 0110, University Of California San Francisco, M691, San Francisco, CA 94143
Phone: 415-476-6245    
Dr. David Michael Gordon, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 505 Parnassus Ave # M696, Box 0110, San Francisco, CA 94143
Phone: 415-353-1000    
Jayme Congdon, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 1500 Owens St, San Francisco, CA 94158
Phone: 415-476-1000    
Laurie Song,
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 550 16th St, San Francisco, CA 94158
Phone: 415-514-4079    Fax: 415-476-5354
Ms. Tatiana Goldstein, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 525 Spruce Street, Suite 3, San Francisco, CA 94118
Phone: 415-668-8900    Fax: 415-668-1695
John T Tsukahara, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 2340 Clay St, 3rd Floor, San Francisco, CA 94115
Phone: 415-600-1111    
William Bernard Solomon, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 45 Castro Street, Suite 232, San Francisco, CA 94114
Phone: 415-565-6810    Fax: 415-565-6844

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.