DR. MITCHELL H. KATZ MD
NPI 1205959533
Internal Medicine in San Francisco, CA
About Dr. Mitchell H. Katz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MITCHELL H. KATZ MD (NPI 1205959533) is an individual internal medicine provider in San Francisco, California, licensed in California (G61707) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Dr. Mitchell H. Katz 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
2Medicare enrollment records show Mitchell Katz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lancaster, CA 93535
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: County Of Los Angeles
- 1,939 clinicians in this Medicare group
Staten Island, NY 10314
- Reassigned Medicare billing, New York enrollment
- 1,615 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 94110 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94110
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 Mitchell Katz's NPI number?
The NPI number for Mitchell Katz is 1205959533. It was assigned to this individual provider in the NPPES registry on April 10, 2007.
Where is Mitchell Katz located?
Mitchell Katz practices at 995 Potrero Ave Bldg.80 Wd 86 Sfgh Aids - Php Clinic, San Francisco, CA 94110. The listed phone number is (415) 206-2400.
What is Mitchell Katz's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mitchell Katz enrolled in Medicare?
Yes. Mitchell Katz 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 Mitchell Katz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mitchell Katz reassigns Medicare benefits to 2 organizations: County Of Los Angeles Auditor Controller (Lancaster, CA) and New York City Health And Hospitals Corporation (Staten Island, NY). 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 Mitchell Katz'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 Mitchell Katz was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Mitchell H. Katz, MD · NPI 1205959533
Internal Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 10, 2007.
## Identity
- **NPI:** 1205959533 (Entity type: Individual)
- **Enumerated:** April 10, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G61707 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 995 POTRERO AVE BLDG.80 WD 86, SFGH AIDS - PHP CLINIC, San Francisco, CA 94110
- **Phone:** (415) 206-2400 · **Fax:** (415) 554-2888
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): County Of Los Angeles Auditor Controller (NPI 1366453045, Lancaster, CA); New York City Health And Hospitals Corporation (NPI 1285642512, Staten Island, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1982
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Other 047282; Medicare UPIN F04521
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Source: [NPI Profile](https://npiprofile.com/npi/1205959533) · Data from the CMS NPPES public registry.