Dr Marc-alan Iwahashi, MD, - Medicare Family Practice in Cupertino, CA

Dr Marc-alan Iwahashi, MD, is a medicare enrolled "Family Medicine" physician in Cupertino, California. He went to University Of California, San Francisco School Of Medicine and graduated in 1987 and has 37 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Silicon Valley Medical Development Llc and his current practice location is 20555 Prospect Rd, Suite A, Cupertino, California. You can reach out to his office (for appointments etc.) via phone at (408) 253-5811.

Dr Marc-alan Iwahashi is licensed to practice in California (license number G68531) 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 1235123985.

Contact Information

Dr Marc-alan Iwahashi, MD,
20555 Prospect Rd, Suite A,
Cupertino, CA 95014-5212
(408) 253-5811
(408) 725-0583

Map and Direction




Physician's Profile

Full NameDr Marc-alan Iwahashi
GenderMale
SpecialityFamily Practice
Experience37 Years
Location20555 Prospect Rd, Cupertino, 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 Marc-alan Iwahashi attended and graduated from University Of California, San Francisco School Of Medicine in 1987
  NPI Data:
  • NPI Number: 1235123985
  • Provider Enumeration Date: 09/08/2005
  • Last Update Date: 01/05/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 8527238021
  • Enrollment ID: I20110818000625

Medical Identifiers

Medical identifiers for Dr Marc-alan Iwahashi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235123985NPI-NPPES
00G685310MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G68531 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
El Camino HospitalMountain view, CAHospital
Stanford Health CareStanford, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Silicon Valley Medical Development Llc6103115183128

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 Marc-alan Iwahashi allows following entities to bill medicare on his behalf.
Entity NameSilicon Valley Medical Development Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164880761
PECOS PAC ID: 6103115183
Enrollment ID: O20160513001617

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 Marc-alan Iwahashi 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 Marc-alan Iwahashi, MD,
20555 Prospect Rd, Suite A,
Cupertino, CA 95014-5212

Ph: (408) 253-5811
Dr Marc-alan Iwahashi, MD,
20555 Prospect Rd, Suite A,
Cupertino, CA 95014-5212

Ph: (408) 253-5811

Reviews and Comments


Family Medicine Doctors in Cupertino, CA

Dr. John Chiensing Chiu, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 10440 S De Anza Blvd, Ste D6, Cupertino, CA 95014
Phone: 408-863-0709    Fax: 408-863-0245
Sheldon Zitman, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 20555 Prospect Road, Cupertino, CA 95014
Phone: 408-996-9339    Fax: 408-996-3550
Melissa Wan-shiun Lin, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 20730 Valley Green Drive, Cupertino, CA 95014
Phone: 408-783-4000    Fax: 408-217-6140
Dr. Laura Stevens, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10070 Pasadena Ave Ste 2, Cupertino, CA 95014
Phone: 408-746-0300    Fax: 408-343-1285
Dr. Yung-kuang Chen, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 10050 Bubb Rd, Suite #1, Cupertino, CA 95014
Phone: 408-996-3376    Fax: 408-996-3136
Dr. Brandon Q Jones, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 20730 Valley Green Dr, Cupertino, CA 95014
Phone: 408-783-4000    Fax: 408-217-6140

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.