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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.

PIN-JUNG CHEN MD
NPI 1316575947
Internal Medicine - Hematology & Oncology in South San Francisco, CA

Active since March 30, 2020PECOS Enrolled
1200 EL CAMINO REAL, SOUTH SAN FRANCISCO, CA 94080(650) 742-2000 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 6, 2026, Mar 30, 2020 (2 updates tracked since 2020).

About Pin-jung Chen Md NPPES

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

PIN-JUNG CHEN MD (NPI 1316575947) is an individual hematology & oncology provider in South San Francisco, California, licensed in California (CA184280) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1316575947
Entity TypeIndividualFemale
Primary Taxonomy207RH0003X
Provider Legal NamePIN-JUNG CHENCredential: MD
Location Address1200 EL CAMINO REALSouth San Francisco, CA 94080-3208
Mailing Address5820 Owens Dr Fl 2Pleasanton, CA 94588-3900 · (510) 625-6262
Phone(650) 742-2000
Sole ProprietorYes
Enumeration DateMarch 30, 2020
Last NPPES UpdateOctober 6, 20262 updates tracked since enumeration
NPPES CertifiedOctober 6, 2026
✔ NPI 1316575947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · CA184280
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Also ListedInternal MedicineTaxonomy 207R00000X · License CA184280 (CA)
1200 EL CAMINO REAL, South San Francisco, CA 94080
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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)

Pin-jung Chen 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94080 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 20

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

SANDRA MOONHEE LEE PHARM. D.
Pharmacist
1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-2627
MELISSA ARGENTE RT
Respiratory Therapist, Registered
1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-3313
DR. JAMES NICHOLAS PEROS MD
Internal Medicine
1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-2000
DR. PIERSON CHIOU M.D.
Radiology (Diagnostic Radiology)
1200 EL CAMINO REAL, 1ST FLOOR, DEPARTMENT OF RADIOLOGY
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-3882
MS. LARELL LOUISE FINEREN CRNA
Nurse Anesthetist, Certified Registered
1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-3037
EDMOND L. SCHMULBACH MD
Internal Medicine (Hematology & Oncology)
1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-2000
EDWARD J. BADDOUR MD
Emergency Medicine
1200 EL CAMINO REAL
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-2000
ESTHER KOESHADI PHARM.D.
Pharmacist
1200 EL CAMINO REAL, KAISER PERMANENTE INPATIENT PHARMACY 3RD FLOOR
SOUTH SAN FRANCISCO, CA 94080
San Mateo County (650) 742-2486

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 Pin-jung Chen's NPI number?

The NPI number for Pin-jung Chen is 1316575947. It was assigned to this individual provider in the NPPES registry on March 30, 2020.

Where is Pin-jung Chen located?

Pin-jung Chen practices at 1200 El Camino Real, South San Francisco, CA 94080. The listed phone number is (650) 742-2000.

What is Pin-jung Chen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Pin-jung Chen enrolled in Medicare?

Yes. Pin-jung Chen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Pin-jung Chen was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.