DR. WENDELL BRYAN WILLIAMS MD
NPI 1093703357
Family Medicine in Oakland, CA

Active since October 11, 2005PECOS EnrolledAccepts Medicare Assignment
5900 SHATTUCK AVE, SUITE 101, OAKLAND, CA 94609(510) 595-1500(510) 595-1560 Get Directions Write a Review

NPPES record last updated: December 15, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Wendell Bryan Williams Md NPPES

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

DR. WENDELL BRYAN WILLIAMS MD (NPI 1093703357) is an individual family medicine provider in Oakland, California, licensed in California (A72340) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (1997).

NPPES Registry Identity

NPI1093703357
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. WENDELL BRYAN WILLIAMSCredential: MD
Location Address5900 SHATTUCK AVE, SUITE 101Oakland, CA 94609-1461
Mailing Address5900 Shattuck Ave, Suite 101Oakland, CA 94609-1461 · (510) 595-1500 · Fax (510) 595-1560
Fax(510) 595-1560
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 1997
Enumeration DateOctober 11, 2005
Last NPPES UpdateDecember 15, 2021
✔ NPI 1093703357 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 · A72340
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.
5900 SHATTUCK AVE, Oakland, CA 94609

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

Dr. Wendell Bryan Williams 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 ID9638152838
PECOS Enrollment IDI20040609000864
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 Wendell Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
20 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 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 2

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

Family Medicine
5900 SHATTUCK AVE, SUITE 101
OAKLAND, CA 94609
Dentist
5900 SHATTUCK AVE, SUITE 202
OAKLAND, CA 94609

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 Wendell Williams's NPI number?

The NPI number for Wendell Williams is 1093703357. It was assigned to this individual provider in the NPPES registry on October 11, 2005.

Where is Wendell Williams located?

Wendell Williams practices at 5900 Shattuck Ave Suite 101, Oakland, CA 94609. The listed phone number is (510) 595-1500.

What is Wendell Williams's specialty?

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

Is Wendell Williams enrolled in Medicare?

Yes. Wendell Williams 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 Wendell Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wendell Williams reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Wendell Williams'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 Wendell Williams was last updated on December 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.