DR. DARREN MICHAEL FIORE MD
NPI 1538297072
Pediatrics in San Francisco, CA
About Dr. Darren Michael Fiore Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DARREN MICHAEL FIORE MD (NPI 1538297072) is an individual pediatrics provider in San Francisco, California, licensed in California (A93431) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Darren Michael Fiore Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Darren Fiore reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
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.
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.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Darren Fiore's NPI number?
The NPI number for Darren Fiore is 1538297072. It was assigned to this individual provider in the NPPES registry on February 28, 2007.
Where is Darren Fiore located?
Darren Fiore practices at 550 16th St Fl 5 Ucsf Department Of Pediatrics Box 0110, San Francisco, CA 94143. The listed phone number is (415) 476-5153.
What is Darren Fiore's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Darren Fiore enrolled in Medicare?
Yes. Darren Fiore is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Darren Fiore's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Darren Fiore 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 Darren Fiore'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 Darren Fiore was last updated on July 22, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Darren Michael Fiore, MD · NPI 1538297072
Pediatrics physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since February 28, 2007.
## Identity
- **NPI:** 1538297072 (Entity type: Individual)
- **Enumerated:** February 28, 2007
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** A93431 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 550 16TH ST FL 5, UCSF DEPARTMENT OF PEDIATRICS BOX 0110, San Francisco, CA 94143-2549
- **Phone:** (415) 476-5153
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 22, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1538297072) · Data from the CMS NPPES public registry.