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CLARENCE EDWIN CHU
NPI 1225614324
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Francisco, CA

Active since March 20, 2021PECOS Enrolled
400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-2350(415) 353-2337 Get Directions Write a Review

NPPES record last updated: April 2, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 2, 2026, Mar 20, 2021 (2 updates tracked since 2021).

About Clarence Edwin Chu NPPES

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

CLARENCE EDWIN CHU (NPI 1225614324) is an individual endocrinology, diabetes & metabolism provider in San Francisco, California, licensed in California (A192155) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Oakland, and is a graduate of University Of Missouri, Columbia School Of Medicine (2021).

NPPES Registry Identity

NPI1225614324
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameCLARENCE EDWIN CHU
Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202
Mailing Address275 W Macarthur BlvdOakland, CA 94611-5641
Phone(415) 353-2350
Fax(415) 353-2337
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Columbia School Of MedicineGraduated 2021
Enumeration DateMarch 20, 2021
Last NPPES UpdateApril 2, 20262 updates tracked since enumeration
NPPES CertifiedApril 2, 2026
✔ NPI 1225614324 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A192155
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
400 PARNASSUS AVE, San Francisco, CA 94143
Open in Google Maps ↗

Secondary Practice Location 1

Location 1275 W MacArthur BlvdOakland, CA 94611-5641 · Phone (510) 752-1000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Clarence Edwin Chu is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7416330345
PECOS Enrollment IDI20260417000111
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 Reassignments

5

Medicare enrollment records show Clarence Chu reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California San Francisco
Same address
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
Same address
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808
Regents Of The University Of California
0.1 mi
Endocrinology, Diabetes & Metabolism
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 2,112 clinicians in this Medicare group
NPI 1376613943 (415) 353-2350
City & County Of San Francisco
1.1 mi
Mental Health (Including Community Mental Health Center)
375 LAGUNA HONDA BLVD
San Francisco, CA 94116
  • Reassigned Medicare billing, California enrollment
  • 1,573 clinicians in this Medicare group
NPI 1528083300 (415) 759-3348
University Of California Sfgh Medical Group
2.8 mi
Medical Oncology
995 POTRERO AVE, BLDG.80, RM 229
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 637 clinicians in this Medicare group
NPI 1356696215 (415) 476-4082

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 94143 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
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.

DR. ALEJANDRA GABRIELA DE ALBA CAMPOMANES MD, MPH
Ophthalmology
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2560
DR. MARISSA A BOECK M.D.
Surgery (Surgical Critical Care)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2161
DR. JACQUELINE EVA WEINSTEIN M.D.
Otolaryngology (Pediatric Otolaryngology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1000
TIFFANY PONG ROSS PA-C
Physician Assistant
400 PARNASSUS AVE, 3RD FLOOR, SUITE 311
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2739
SHINTARO TATEBE MSPT
Physical Therapist
400 PARNASSUS AVE, A-68
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-8574
DR. YVONNE W WU MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2813
DR. DAVID S. BRADFORD MD
Orthopaedic Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2739
DR. SANG-MO KANG MD
Surgery
400 PARNASSUS AVE
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1551

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 Clarence Chu's NPI number?

The NPI number for Clarence Chu is 1225614324. It was assigned to this individual provider in the NPPES registry on March 20, 2021.

Where is Clarence Chu located?

Clarence Chu practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2350.

What is Clarence Chu's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Clarence Chu enrolled in Medicare?

Yes. Clarence Chu is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Clarence Chu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clarence Chu reassigns Medicare benefits to 5 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Regents Of The University Of California (San Francisco, CA), City & County Of San Francisco (San Francisco, CA) and University Of California Sfgh Medical Group (San Francisco, CA). Each 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 Clarence Chu'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 Clarence Chu was last updated on April 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.