TERESA CHEN M.D.
NPI 1336352558
Internal Medicine - Nephrology in San Francisco, CA

Q: What is Teresa Chen's NPI number?

The NPI number for Teresa Chen is 1336352558. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Q: What is Teresa Chen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Teresa Chen was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.

Active since May 07, 2007PECOS EnrolledAccepts Medicare Assignment

74.46/100

CMS Quality Rating

400 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 353-1551 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Teresa Chen M.d. NPPES

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

TERESA CHEN M.D. (NPI 1336352558) is an individual nephrology provider in San Francisco, California, licensed in California (C179475) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1336352558

Entity TypeIndividualFemale

Primary Taxonomy207RN0300X

Provider Legal NameTERESA CHENCredential: M.D.

Location Address400 PARNASSUS AVESan Francisco, CA 94143-2202

Mailing Address400 Parnassus AveSan Francisco, CA 94143-2202 · (415) 353-1551

Phone(415) 353-1551

Sole ProprietorNo

Medical School CMSOtherGraduated 2006

Enumeration DateMay 7, 2007

Last NPPES UpdateSeptember 26, 2025

NPPES CertifiedSeptember 26, 2025

✔ NPI 1336352558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in CA · C179475✔ Licensed in MD · D71030

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License C179475 (CA)

400 PARNASSUS AVE, San Francisco, CA 94143

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Other Identifiers 1

Medicaid054883900MD

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Teresa Chen M.d. 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 ID3779747233

PECOS Enrollment IDI20220714002475

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.

Areas of Expertise CMS Part B claims 3

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 high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

113 services64 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

60 services32 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

16 services16 patients

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.46/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

Improvement Activities

Cost

46.68

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

6 suppliers48 claims4,095 services$0.30 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

2 suppliers19 claims2,280 services$0.20 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

5 suppliers38 claims38 services$17.75 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

3 suppliers15 claims16 services$12.66 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Teresa Chen's NPI number?

The NPI number for Teresa Chen is 1336352558. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Where is Teresa Chen located?

Teresa Chen practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-1551.

What is Teresa Chen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Teresa Chen enrolled in Medicare?

Yes. Teresa Chen 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.

When was this NPI record last updated?

The NPPES record for Teresa Chen was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.