GABRIELA GAYER MD
NPI 1447459532
Radiology - Diagnostic Radiology in San Francisco, CA
About Gabriela Gayer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GABRIELA GAYER MD (NPI 1447459532) is an individual diagnostic radiology provider in San Francisco, California, licensed in California (A124560) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Hospital - Needham, and maintains a secondary practice location in Stanford.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gabriela Gayer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Gabriela Gayer reassigns Medicare billing to 4 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
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
Needham, MA 02492
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1952358533 (Massachusetts)
- 556 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1275574899 (Massachusetts)
- 2,579 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beth Israel Deaconess Hospital - Needham
Acute Care Hospitals · Needham, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MAPhysician 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 16
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
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 Gabriela Gayer's NPI number?
The NPI number for Gabriela Gayer is 1447459532. It was assigned to this individual provider in the NPPES registry on July 17, 2007.
Where is Gabriela Gayer located?
Gabriela Gayer practices at 505 Parnassus Ave # M391, San Francisco, CA 94143. The listed phone number is (415) 476-1537.
What is Gabriela Gayer's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Gabriela Gayer enrolled in Medicare?
Yes. Gabriela Gayer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gabriela Gayer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gabriela Gayer reassigns Medicare benefits to 4 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Needham, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). 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 Gabriela Gayer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gabriela Gayer accept?
Health plans from Taro Health list Gabriela Gayer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Gabriela Gayer affiliated with any hospitals?
According to CMS data, Gabriela Gayer is affiliated with Beth Israel Deaconess Hospital - Needham and Beth Israel Deaconess Medical Center.
When was this NPI record last updated?
The NPPES record for Gabriela Gayer was last updated on April 19, 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.
# Gabriela Gayer, MD · NPI 1447459532
Diagnostic Radiology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 17, 2007.
## Identity
- **NPI:** 1447459532 (Entity type: Individual)
- **Enumerated:** July 17, 2007
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** A124560 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 505 PARNASSUS AVE # M391, San Francisco, CA 94143-2204
- **Phone:** (415) 476-1537
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1255818472, Needham, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1194765438, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1987
## Record status
- **NPPES last updated:** April 19, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1447459532) · Data from the CMS NPPES public registry.