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SONJA MARIE SWENSON
NPI 1639706203
Student in an Organized Health Care Education/Training Program in San Francisco, CA

Active since March 24, 2020PECOS Enrolled
550 16TH ST FL 4, SAN FRANCISCO, CA 94143(415) 476-5001 Get Directions Write a Review

NPPES record last updated: March 24, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Sonja Marie Swenson NPPES

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

SONJA MARIE SWENSON (NPI 1639706203) is an individual student in an organized health care education/training program in San Francisco, California and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639706203
Entity TypeIndividualFemale
Primary Taxonomy390200000X
Provider Legal NameSONJA MARIE SWENSON
Location Address550 16TH ST FL 4San Francisco, CA 94143-2549
Mailing Address550 16th St Fl 4San Francisco, CA 94143-2549 · (415) 476-5001
Phone(415) 476-5001
Sole ProprietorNo
Enumeration DateMarch 24, 2020
NPPES CertifiedMarch 24, 2020
✔ NPI 1639706203 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyStudent in an Organized Health Care Education/Training ProgramStudent, Health Care
Taxonomy Code390200000X
Definition
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
550 16TH ST FL 4, San Francisco, CA 94143
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sonja Marie Swenson 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

3

Medicare enrollment records show Sonja Swenson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ucsf Pediatrics Associates
3.7 mi
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
3.8 mi
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
3.8 mi
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

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

ALYSSA TOSHIMI GO
Pediatrics
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ZACHARY EMMANUEL WAN SANDOVAL MD, MPH
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
RULAN YI MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ELIZABETH HALE MONTESANO SCHEIBE MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
ISHAAN AMARJITSINGH SANGWAN
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
MARY ROLFES STUDENT
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-6245
EVELYN MARIA HOOVER
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001
VALERIE JUDITH FONG-SILVA MD
Student in an Organized Health Care Education/Training Program
550 16TH ST FL 4
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-5001

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 Sonja Swenson's NPI number?

The NPI number for Sonja Swenson is 1639706203. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Sonja Swenson located?

Sonja Swenson practices at 550 16th St Fl 4, San Francisco, CA 94143. The listed phone number is (415) 476-5001.

What is Sonja Swenson's specialty?

The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.

Is Sonja Swenson enrolled in Medicare?

Yes. Sonja Swenson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sonja Swenson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sonja Swenson reassigns Medicare benefits to 3 organizations: Ucsf Pediatrics Associates (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (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 Sonja Swenson'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 Sonja Swenson was last updated on March 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.