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ALYSSA TOSHIMI GO
NPI 1003557810
Pediatrics in San Francisco, CA

Active since April 05, 2022PECOS Enrolled
550 16TH ST FL 4, SAN FRANCISCO, CA 94143(415) 476-5001 Get Directions Write a Review

NPPES record last updated: February 15, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 15, 2023, Apr 5, 2022 (2 updates tracked since 2022).

About Alyssa Toshimi Go NPPES

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

ALYSSA TOSHIMI GO (NPI 1003557810) is an individual pediatrics provider in San Francisco, California, licensed in California (1003557810) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (2022).

NPPES Registry Identity

NPI1003557810
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameALYSSA TOSHIMI GO
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
Medical School CMSTulane University School Of MedicineGraduated 2022
Enumeration DateApril 5, 2022
Last NPPES UpdateFebruary 15, 20232 updates tracked since enumeration
NPPES CertifiedFebruary 15, 2023
✔ NPI 1003557810 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 · 1003557810
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 ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
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)

Alyssa Toshimi Go is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID345606471
PECOS Enrollment IDI20251024002948
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 Reassignment

Medicare enrollment records show Alyssa Go reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
14 mi
Multi-Specialty
12 CAMINO ENCINAS
Orinda, CA 94563
  • Reassigned Medicare billing, California enrollment
  • 4,479 clinicians in this Medicare group
NPI 1366898538 (510) 204-8180

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.

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.

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
TRISHA PAULINE DIAZ ENRIQUEZ
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 Alyssa Go's NPI number?

The NPI number for Alyssa Go is 1003557810. It was assigned to this individual provider in the NPPES registry on April 5, 2022.

Where is Alyssa Go located?

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

What is Alyssa Go's specialty?

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

Is Alyssa Go enrolled in Medicare?

Yes. Alyssa Go is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alyssa Go's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Go reassigns Medicare benefits to Sutter Bay Medical Foundation (Orinda, CA). The 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 Alyssa Go'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 Alyssa Go was last updated on February 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.