Wendy O Buffett, MD - Medicare Family Practice in Berkeley, CA

Wendy O Buffett, MD is a medicare enrolled "Family Medicine" physician in Berkeley, California. She went to Boston University School Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Family Practice. She is a member of the group practice One Medical Group Inc and her current practice location is 1801 Shattuck Ave Ste A, Berkeley, California. You can reach out to her office (for appointments etc.) via phone at (510) 225-1025.

Wendy O Buffett is licensed to practice in California (license number G80799) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1154373165.

Contact Information

Wendy O Buffett, MD
1801 Shattuck Ave Ste A,
Berkeley, CA 94709-1872
(510) 225-1025
(415) 291-0489

Map and Direction




Physician's Profile

Full NameWendy O Buffett
GenderFemale
SpecialityFamily Practice
Experience31 Years
Location1801 Shattuck Ave Ste A, Berkeley, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Wendy O Buffett attended and graduated from Boston University School Of Medicine in 1993
  NPI Data:
  • NPI Number: 1154373165
  • Provider Enumeration Date: 05/17/2006
  • Last Update Date: 06/10/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 3375628506
  • Enrollment ID: I20080311000686

Medical Identifiers

Medical identifiers for Wendy O Buffett such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154373165NPI-NPPES
00G807990MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G80799 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
One Medical Group Inc2567623739291

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. Wendy O Buffett allows following entities to bill medicare on her behalf.
Entity NameOne Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467781641
PECOS PAC ID: 2567623739
Enrollment ID: O20120416000113

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. Wendy O Buffett 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
Wendy O Buffett, MD
1 Embarcadero Ctr Ste 1900,
San Francisco, CA 94111-3723

Ph: (415) 658-6791
Wendy O Buffett, MD
1801 Shattuck Ave Ste A,
Berkeley, CA 94709-1872

Ph: (510) 225-1025

Reviews and Comments


Family Medicine Doctors in Berkeley, CA

Dr. Susan Lee Ivey, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2140 Shattuck Ave, 10th Floor, Health Research For Action, Uc-berkeley Sph, Berkeley, CA 94704
Phone: 510-643-1883    Fax: 510-643-7976
Dr. Julie A Goo, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 2636 Telegraph Ave, Berkeley, CA 94704
Phone: 510-841-1647    Fax: 810-848-4924
Mr. Sharad Kumar Kohli, M.D.
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Practice Location: 2031 6th St, West Berkeley Family Practice, Berkeley, CA 94710
Phone: 510-981-4234    
Audrey Dandrea, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 3100 San Pablo Ave # 310, Berkeley, CA 94702
Phone: 925-985-5020    
Dana Gersten, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1711 Ward St, Berkeley, CA 94703
Phone: 541-386-3911    
Julia Marino, MD
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Medicare: Medicare Enrolled
Practice Location: Lifelong Ashby Health Center, 3075 Adeline St #280, Berkeley, CA 94703
Phone: 510-981-4100    
Dr. Don Weinreich, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3000 Colby St, Suite #307, Berkeley, CA 94705
Phone: 510-848-5310    Fax: 510-848-5510

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.