JOSEPH MOY FONG MD
NPI 1316678246
Pediatrics - Pediatric Critical Care Medicine in San Francisco, CA

Active since June 21, 2022PECOS Enrolled
1975 4TH ST, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 6, 2026, Mar 30, 2023 (2 updates tracked since 2023).

About Joseph Moy Fong Md NPPES

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

JOSEPH MOY FONG MD (NPI 1316678246) is an individual pediatric critical care medicine provider in San Francisco, California, licensed in California (A209006) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Illinois Medical College (2023).

NPPES Registry Identity

NPI1316678246
Entity TypeIndividualMale
Primary Taxonomy2080P0203X
Provider Legal NameJOSEPH MOY FONGCredential: MD
Location Address1975 4TH STSan Francisco, CA 94143-2351
Mailing Address550 16th St Fl 4San Francisco, CA 94143-2549 · (415) 476-5001
Sole ProprietorNo
Medical School CMSIllinois Medical CollegeGraduated 2023
Enumeration DateJune 21, 2022
Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1316678246 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0203X
License✔ Licensed in CA · A209006
Definition
A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.
Also ListedPediatricsTaxonomy 208000000X · License A209006 (CA)
1975 4TH ST, San Francisco, CA 94143

Secondary Practice Locations 2

Location 1550 16th Street, 4th FloorSan Francisco, CA 94143-0110 · Phone (415) 476-5001
Location 21001 Potrero Avenue, Bldg. 5, 6MSan Francisco, CA 94110-3518 · Phone (628) 206-8376

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph Moy Fong Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8820561699
PECOS Enrollment IDI20260623003801
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

5

Medicare enrollment records show Joseph Fong reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinic/Center
1700 25TH ST
San Francisco, CA 94107
  • Reassigned Medicare billing, California enrollment
  • 1,573 clinicians in this Medicare group
Medical Oncology
995 POTRERO AVE, BLDG.80, RM 229
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • 637 clinicians in this Medicare group
Pediatrics
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 1,159 clinicians in this Medicare group
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group

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.

Physical Therapist
1975 4TH ST
SAN FRANCISCO, CA 94143
Pediatrics
1975 4TH ST
SAN FRANCISCO, CA 94143
Anesthesiology
1975 4TH ST
SAN FRANCISCO, CA 94143
Nurse Practitioner (Pediatrics)
1975 4TH ST
SAN FRANCISCO, CA 94143
Pharmacist (Pediatrics)
1975 4TH ST
SAN FRANCISCO, CA 94143
Social Worker (Clinical)
1975 4TH ST
SAN FRANCISCO, CA 94143
Pediatrics (Adolescent Medicine)
1975 4TH ST
SAN FRANCISCO, CA 94143
Nurse Practitioner (Neonatal)
1975 4TH ST
SAN FRANCISCO, CA 94143

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 Joseph Fong's NPI number?

The NPI number for Joseph Fong is 1316678246. It was assigned to this individual provider in the NPPES registry on June 21, 2022.

Where is Joseph Fong located?

Joseph Fong practices at 1975 4th St, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is Joseph Fong's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Joseph Fong enrolled in Medicare?

Yes. Joseph Fong is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Joseph Fong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Fong reassigns Medicare benefits to 5 organizations: City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA), 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 Joseph Fong'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 Joseph Fong was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.