DR. COURTNEY WEN-LUN TAM MD
NPI 1306475256
Pediatrics in Walnut Creek, CA

Q: What is Courtney Tam's NPI number?

The NPI number for Courtney Tam is 1306475256. It was assigned to this individual provider in the NPPES registry on April 3, 2020.

Q: What is Courtney Tam's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Q: When was this NPI record last updated?

The NPPES record for Courtney Tam was last updated on February 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since April 03, 2020PECOS Enrolled

1425 S MAIN ST, WALNUT CREEK, CA 94596(925) 295-4000 Get Directions Write a Review

NPPES record last updated: February 3, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 21, 2023, Apr 3, 2020 (2 updates tracked since 2020).

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About Dr. Courtney Wen-lun Tam Md NPPES

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

DR. COURTNEY WEN-LUN TAM MD (NPI 1306475256) is an individual pediatrics provider in Walnut Creek, California, licensed in California (PTL5462) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1306475256

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameDR. COURTNEY WEN-LUN TAMCredential: MD

Location Address1425 S MAIN STWalnut Creek, CA 94596-5318

Mailing Address1425 S Main StWalnut Creek, CA 94596-5318 · (925) 295-4000

Phone(925) 295-4000

Sole ProprietorNo

Enumeration DateApril 3, 2020

Last NPPES UpdateFebruary 3, 20242 updates tracked since enumeration

NPPES CertifiedFebruary 3, 2024

✔ NPI 1306475256 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

License✔ Licensed in CA · PTL5462

Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1425 S MAIN ST, Walnut Creek, CA 94596

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Courtney Wen-lun Tam Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Courtney Tam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

17 mi

Internal Medicine

901 NEVIN
Richmond, CA 94801

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1235226531 (510) 307-1555

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 94596 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 20

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

BROOK ANDREW WOOLLEY M.D.

Emergency Medicine

1425 S MAIN ST, EMERGENCY MEDICINE DEPARTMENT
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-5100

DR. THOMAS CRESANTE D.O.

Hospitalist

1425 S MAIN ST, KAISER PERMANENTE WALNUT CREEK ATTN: HBS DEPT
WALNUT CREEK, CA 94596

Contra Costa County (925) 295-4643

SARA WON MD

Obstetrics & Gynecology