JOHN HOLLOWAY DO
NPI 1386207801
Radiology - Diagnostic Radiology in San Francisco, CA
About John Holloway Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN HOLLOWAY DO (NPI 1386207801) is an individual diagnostic radiology provider in San Francisco, California, licensed in California (20A22658) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).
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 and accepts Medicare assignment
John Holloway Do 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
5Medicare enrollment records show John Holloway reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94117
- Reassigned Medicare billing, California enrollment
- 15 clinicians in this Medicare group
San Francisco, CA 94117
- Reassigned Medicare billing, California enrollment
- 1,191 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 202 clinicians in this Medicare group
Orange Park, FL 32073
- Reassigned Medicare billing, California enrollment
- 21 clinicians in this Medicare group
Winter Park, FL 32792
- Reassigned Medicare billing, California enrollment
- 6 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94117 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94117
SAN FRANCISCO, CA 94117
SAN FRANCISCO, CA 94117
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 John Holloway's NPI number?
The NPI number for John Holloway is 1386207801. It was assigned to this individual provider in the NPPES registry on April 19, 2019.
Where is John Holloway located?
John Holloway practices at 450 Stanyan St, San Francisco, CA 94117. The listed phone number is (714) 456-8888.
What is John Holloway's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is John Holloway enrolled in Medicare?
Yes. John Holloway 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 John Holloway's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Holloway reassigns Medicare benefits to 5 organizations: Image Guided Therapeutics, Inc. (San Francisco, CA), Dignity Health Medical Foundation (San Francisco, CA), Uc Regents (Orange, CA), Elite Imaging LLC (Orange Park, FL) and Neuro Imaging Institute Of Winter Park, Ltd (Winter Park, FL). 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 John Holloway'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 John Holloway was last updated on June 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.