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

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Dr Jonathan Isaac Witonsky, MD is a medicare enrolled "Pediatrics - Pediatric Allergy/immunology" physician in San Francisco, California. He went to Albert Einstein College Of Medicine Of Yeshiva University and graduated in 2017 and has 9 years of diverse experience with area of expertise as Pediatric Medicine. He is a member of the group practice University Of California San Francisco and 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 accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and 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
SpecialityPediatric Medicine
Experience9 Years
Location1825 4th St Fl 6, San Francisco, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jonathan Isaac Witonsky attended and graduated from Albert Einstein College Of Medicine Of Yeshiva University in 2017
  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

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of California San Francisco44865672291780

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


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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).

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