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WENDY O. BUFFETT MD
NPI 1154373165
Family Medicine in Berkeley, CA

Active since May 17, 2006PECOS EnrolledAccepts Medicare Assignment
1801 SHATTUCK AVE STE A, BERKELEY, CA 94709(888) 663-6331(415) 252-7176 Get Directions Write a Review

NPPES record last updated: March 17, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 17, 2025, Jun 10, 2020, Oct 27, 2017 (3 updates tracked since 2017).

About Wendy O. Buffett Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WENDY O. BUFFETT MD (NPI 1154373165) is an individual family medicine provider in Berkeley, California, licensed in California (G80799) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Boston University School Of Medicine (1993).

NPPES Registry Identity

NPI1154373165
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameWENDY O. BUFFETTCredential: MD
Location Address1801 SHATTUCK AVE STE ABerkeley, CA 94709-1872
Mailing Address1 Embarcadero Ctr Ste 1900San Francisco, CA 94111-3723 · (415) 658-6791
Phone(888) 663-6331
Fax(415) 252-7176
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 1993
Enumeration DateMay 17, 2006
Last NPPES UpdateMarch 17, 20253 updates tracked since enumeration
NPPES CertifiedMarch 17, 2025
✔ NPI 1154373165 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · G80799
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1801 SHATTUCK AVE STE A, Berkeley, CA 94709
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1500 San Pablo Street, AlbanyAlbany, CA 94706-1256 · Phone (510) 524-1580 · Fax (510) 524-0861
Location 2500 San Pablo AveAlbany, CA 94706-1103 · Phone (510) 204-8130 · Fax (510) 524-0861

Other Identifiers 1

Medicaid00G807990CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Wendy O. Buffett Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375628506
PECOS Enrollment IDI20080311000686
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Wendy Buffett reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

One Medical Group, Inc.
8.8 mi
Family Medicine
2 EMBARCADERO CTR LBBY LEVEL
San Francisco, CA 94111
  • Reassigned Medicare billing, California enrollment
  • 291 clinicians in this Medicare group
NPI 1467781641 (415) 578-3100

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94709 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

EMILY CARO-BRUCE MD
Family Medicine
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (888) 663-6331
LAURA WISE M.D.
Family Medicine
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (510) 225-1025
DOUGLAS FREY MSN, NP-C, FNP
Nurse Practitioner (Family)
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (888) 663-6331
ANN W MITCHELL NP
Nurse Practitioner (Family)
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (510) 225-1025
BRETT MICHAEL LONDON D.O.
Family Medicine
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (888) 663-6331
DENISE A. YUN MD
Internal Medicine
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (888) 663-6331
DEBRA SUE GOETTSCH P.A.-C
Physician Assistant
1801 SHATTUCK AVE STE A
BERKELEY, CA 94709
Alameda County (510) 225-1025

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Wendy Buffett's NPI number?

The NPI number for Wendy Buffett is 1154373165. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Wendy Buffett located?

Wendy Buffett practices at 1801 Shattuck Ave Ste A, Berkeley, CA 94709. The listed phone number is (888) 663-6331.

What is Wendy Buffett's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Wendy Buffett enrolled in Medicare?

Yes. Wendy Buffett is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Wendy Buffett's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wendy Buffett reassigns Medicare benefits to One Medical Group, Inc. (San Francisco, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Wendy Buffett's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Wendy Buffett was last updated on March 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.