Gary Alan Pasternak, MD - Medicare Internal Medicine in San Mateo, CA

Gary Alan Pasternak, MD is a medicare enrolled "Internal Medicine" physician in San Mateo, California. His current practice location is 1670 South Amphlett Blvd., Suite 300, San Mateo, California. You can reach out to his office (for appointments etc.) via phone at (650) 554-1000.

Gary Alan Pasternak is licensed to practice in California (license number G55926) 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 1194820688.

Contact Information

Gary Alan Pasternak, MD
1670 South Amphlett Blvd., Suite 300,
San Mateo, CA 94403
(650) 554-1000
(650) 554-1018

Map and Direction




Physician's Profile

Full NameGary Alan Pasternak
GenderMale
SpecialityInternal Medicine
Location1670 South Amphlett Blvd., San Mateo, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1194820688
  • Provider Enumeration Date: 09/13/2006
  • Last Update Date: 12/17/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 1951465558
  • Enrollment ID: I20090127000188

Medical Identifiers

Medical identifiers for Gary Alan Pasternak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194820688NPI-NPPES
00G559260MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G55926 (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. Gary Alan Pasternak allows following entities to bill medicare on his behalf.
Entity NameHomecare Physicians Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578931903
PECOS PAC ID: 5597074609
Enrollment ID: O20151012000884
Entity NameMission Hospice & Home Care Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831772359
PECOS PAC ID: 5698749109
Enrollment ID: O20211028001003

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. Gary Alan Pasternak 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
Gary Alan Pasternak, MD
16460 Ferris Ave,
Los Gatos, CA 95032

Ph: (408) 605-2949
Gary Alan Pasternak, MD
1670 South Amphlett Blvd., Suite 300,
San Mateo, CA 94403

Ph: (650) 554-1000

Reviews and Comments


Internal Medicine Doctors in San Mateo, CA

Kent Marc-josef Adler, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 218 De Anza Blvd, San Mateo, CA 94402
Phone: 650-341-9131    Fax: 650-341-9135
Stanley Cheung-kit Hui, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Donald Bernard Jaffe, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 505 Hurlingham Ave, San Mateo, CA 94402
Phone: 650-342-6977    Fax: 650-343-4074
Lisa Gooze, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Vivian Levy, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-2222    
Dr. Tina Au,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 222 W 39th Ave, San Mateo, CA 94403
Phone: 650-573-3702    
Robert Lawrence Cohen, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 660 Parrott Dr, San Mateo, CA 94402
Phone: 650-342-4357    

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.