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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CLARA CHEN
NPI 1336883024
Internal Medicine - Geriatric Medicine in Oakland, CA

Active since April 27, 2022PECOS Enrolled
835 WEBSTER ST, OAKLAND, CA 94607(510) 318-5800 Get Directions Write a Review

NPPES record last updated: July 4, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Clara Chen NPPES

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

CLARA CHEN (NPI 1336883024) is an individual geriatric medicine provider in Oakland, California, licensed in Washington (MD.MD.61679880) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1336883024
Entity TypeIndividualFemale
Primary Taxonomy207RG0300X
Provider Legal NameCLARA CHEN
Location Address835 WEBSTER STOakland, CA 94607-4219
Mailing Address835 Webster StOakland, CA 94607-4219
Phone(510) 318-5800
Sole ProprietorNo
Enumeration DateApril 27, 2022
Last NPPES UpdateJuly 4, 2026
NPPES CertifiedJuly 4, 2026
✔ NPI 1336883024 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in WA · MD.MD.61679880
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
835 WEBSTER ST, Oakland, CA 94607
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Clara Chen 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94607 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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 15

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

JUDY LE LVN
Licensed Vocational Nurse
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 318-5800
ASIAN HEALTH SERVICES
Clinic/Center (Federally Qualified Health Center (FQHC))
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 318-5800
JOYCE TAM
Registered Nurse
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 318-5800
TRANG NHA HUA
Social Worker (Clinical)
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 318-5800
YUK PUI CHING
Registered Nurse
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 318-5800
DAVID HOANG
Community Health Worker
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 913-3906
NHAT MINH BUI AGNP
Nurse Practitioner
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 318-5800
DENNIS K. ING MD
Internal Medicine
835 WEBSTER ST
OAKLAND, CA 94607
Alameda County (510) 908-2513

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 Clara Chen's NPI number?

The NPI number for Clara Chen is 1336883024. It was assigned to this individual provider in the NPPES registry on April 27, 2022.

Where is Clara Chen located?

Clara Chen practices at 835 Webster St, Oakland, CA 94607. The listed phone number is (510) 318-5800.

What is Clara Chen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Clara Chen enrolled in Medicare?

Yes. Clara Chen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Clara Chen was last updated on July 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 days 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.