CHRISTOPHER CHANG RIOS MD
NPI 1316689334
Internal Medicine in San Francisco, CA

Q: What is Christopher Rios's NPI number?

The NPI number for Christopher Rios is 1316689334. It was assigned to this individual provider in the NPPES registry on April 11, 2022.

Q: What is Christopher Rios's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Christopher Rios was last updated on July 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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 April 11, 2022PECOS EnrolledAccepts Medicare Assignment

521 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: July 2, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 2, 2025, Apr 11, 2022 (2 updates tracked since 2022).

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About Christopher Chang Rios Md NPPES

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

CHRISTOPHER CHANG RIOS MD (NPI 1316689334) is an individual internal medicine provider in San Francisco, California, licensed in California (A190490) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Francisco, and is a graduate of Stanford University School Of Medicine (2022).

NPPES Registry Identity

NPI1316689334

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameCHRISTOPHER CHANG RIOSCredential: MD

Location Address521 PARNASSUS AVESan Francisco, CA 94143-2206

Mailing Address128 Running Farm Ln Apt 105Stanford, CA 94305-7671 · (913) 302-9738

Phone(415) 476-1000

Sole ProprietorYes

Medical School CMSStanford University School Of MedicineGraduated 2022

Enumeration DateApril 11, 2022

Last NPPES UpdateJuly 2, 20252 updates tracked since enumeration

NPPES CertifiedJuly 2, 2025

✔ NPI 1316689334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A190490

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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

521 PARNASSUS AVE, San Francisco, CA 94143

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Secondary Practice Location 1

Location 1505 Parnassus AveSan Francisco, CA 94143-2204 · Phone (415) 476-1000

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

Christopher Chang Rios Md 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 ID4981106564

PECOS Enrollment IDI20250903004155

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 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.

KIRSTEN RITTENBACH DDS, MD

Oral & Maxillofacial Surgery

521 PARNASSUS AVE, C-522
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-8226

AMY WEINBERG MD

Hospitalist

521 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-1000

ASHISH RAMANLAL GANDHI

Hospitalist

521 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-1378

LIANA VALEANU MD

Anesthesiology

521 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7952

JULIN F TANG MD

Anesthesiology

521 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-9035

DR. BINBIN WANG M.D.

Anesthesiology

521 PARNASSUS AVE, RM C-450
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-3235

CHRISTINE V BORROMEO PHARM.D

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

521 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-1335

DR. CARLSON MATHIAS NGWABIFU ASANGHANWA

Anesthesiology

521 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-1043

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 Christopher Rios's NPI number?

The NPI number for Christopher Rios is 1316689334. It was assigned to this individual provider in the NPPES registry on April 11, 2022.

Where is Christopher Rios located?

Christopher Rios practices at 521 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is Christopher Rios's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Christopher Rios enrolled in Medicare?

Yes. Christopher Rios 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 Christopher Rios was last updated on July 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.