Ahmad Siar Ayoubi, MD, MS - Medicare Family Practice in Castro Valley, CA

Ahmad Siar Ayoubi, MD, MS is a medicare enrolled "Family Medicine" physician in Castro Valley, California. He graduated from medical school in 2004 and has 20 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Sutter Bay Medical Foundation and his current practice location is 20101 Lake Chabot Rd Fl 3, Castro Valley, California. You can reach out to his office (for appointments etc.) via phone at (510) 886-3400.

Ahmad Siar Ayoubi is licensed to practice in California (license number 898468) 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 1992926075.

Contact Information

Ahmad Siar Ayoubi, MD, MS
20101 Lake Chabot Rd Fl 3,
Castro Valley, CA 94546
(510) 886-3400
(510) 506-7729

Map and Direction




Physician's Profile

Full NameAhmad Siar Ayoubi
GenderMale
SpecialityFamily Practice
Experience20 Years
Location20101 Lake Chabot Rd Fl 3, Castro Valley, 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:
  • Ahmad Siar Ayoubi graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1992926075
  • Provider Enumeration Date: 05/02/2007
  • Last Update Date: 09/23/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 9436219607
  • Enrollment ID: I20081118000179

Medical Identifiers

Medical identifiers for Ahmad Siar Ayoubi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992926075NPI-NPPES
A102267OtherCASTATE MEDICAL LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 898468 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Eden Medical CenterCastro valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sutter Bay Medical Foundation42845387782995

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. Ahmad Siar Ayoubi 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 NameSutter Bay Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013950807
PECOS PAC ID: 4284538778
Enrollment ID: O20031125000909

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. Ahmad Siar Ayoubi 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
Ahmad Siar Ayoubi, MD, MS
325 Distel Cir,
Los Altos, CA 94022-1408

Ph: (510) 886-3400
Ahmad Siar Ayoubi, MD, MS
20101 Lake Chabot Rd Fl 3,
Castro Valley, CA 94546

Ph: (510) 886-3400

Reviews and Comments


Family Medicine Doctors in Castro Valley, CA

Naomi Bitow, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 20101 Lake Chabot Rd Fl 3, Castro Valley, CA 94546
Phone: 510-886-3400    
Rinku Shrivastava, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 19845 Lake Chabot Rd Ste 205, Castro Valley, CA 94546
Phone: 510-582-6424    Fax: 510-582-6462
Elmer Jason Ocampo Grande, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 20101 Lake Chabot Rd Fl 3, Castro Valley, CA 94546
Phone: 510-886-3400    Fax: 510-506-7772
Narjes Ferjani, MD
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Medicare: Medicare Enrolled
Practice Location: 20642 John Dr, Castro Valley, CA 94546
Phone: 510-581-2559    Fax: 510-581-5396
Dr. Daisy Daixin Maron, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-727-3256    Fax: 510-727-3107
Dr. Bhoomika Ramrao Kamath, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-727-3256    Fax: 510-727-3107
Dr. Parviz Sagheb Talebi, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 20700 Lake Chabot Rd, Suite 107, Castro Valley, CA 94546
Phone: 510-889-1922    Fax: 510-889-5964

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.