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DR. MARK ALAN PETERSEN M.D.
NPI 1780871160
Pediatrics in San Francisco, CA

Active since September 28, 2007PECOS Enrolled
533 PARNASSUS AVE RM U-503, SAN FRANCISCO, CA 94143(415) 476-1888(415) 476-6679 Get Directions Write a Review

NPPES record last updated: January 29, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mark Alan Petersen M.d. NPPES

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

DR. MARK ALAN PETERSEN M.D. (NPI 1780871160) is an individual pediatrics provider in San Francisco, California, licensed in California (A97116) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1780871160
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameDR. MARK ALAN PETERSENCredential: M.D.
Location Address533 PARNASSUS AVE RM U-503San Francisco, CA 94143-0734
Mailing Address533 Parnassus Ave Rm U-503San Francisco, CA 94143-0734 · (415) 476-1888 · Fax (415) 476-6679
Phone(415) 476-1888
Fax(415) 476-6679
Sole ProprietorYes
Enumeration DateSeptember 28, 2007
Last NPPES UpdateJanuary 29, 2024
NPPES CertifiedJanuary 29, 2024
✔ NPI 1780871160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A97116
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedPediatrics · Neonatal-Perinatal MedicineTaxonomy 2080N0001X · License A97116 (CA)
533 PARNASSUS AVE RM U-503, San Francisco, CA 94143
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Secondary Practice Location 1

Location 11001 Potrero Ave., Bldg. 5, #6MSan Francisco, CA 94110 · Phone (628) 206-8361 · Fax (628) 206-3686

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Alan Petersen M.d. 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.

Medicare Billing Reassignments

4

Medicare enrollment records show Mark Petersen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ucsf Pediatrics Associates
Same address
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
NPI 1376614016 (415) 353-2000
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
University Of California Sfgh Medical Group
2.9 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
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.

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 Mark Petersen's NPI number?

The NPI number for Mark Petersen is 1780871160. It was assigned to this individual provider in the NPPES registry on September 28, 2007.

Where is Mark Petersen located?

Mark Petersen practices at 533 Parnassus Ave Rm U-503, San Francisco, CA 94143. The listed phone number is (415) 476-1888.

What is Mark Petersen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Mark Petersen enrolled in Medicare?

Yes. Mark Petersen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Petersen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Petersen reassigns Medicare benefits to 4 organizations: Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (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 Mark Petersen'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 Mark Petersen was last updated on January 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.