DR. ALEXANDER JOHN WOLF MD
NPI 1992327688
Pediatrics - Pediatric Nephrology in San Francisco, CA
About Dr. Alexander John Wolf Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER JOHN WOLF MD (NPI 1992327688) is an individual pediatric nephrology provider in San Francisco, California, licensed in California (A186139) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2020).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Alexander John Wolf Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Alexander Wolf 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.
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 94143
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 Alexander Wolf's NPI number?
The NPI number for Alexander Wolf is 1992327688. It was assigned to this individual provider in the NPPES registry on May 15, 2020.
Where is Alexander Wolf located?
Alexander Wolf practices at 1825 4th St Fl 6, San Francisco, CA 94143. The listed phone number is (415) 476-2423.
What is Alexander Wolf's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.
Is Alexander Wolf enrolled in Medicare?
Yes. Alexander Wolf is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alexander Wolf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Wolf 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 Alexander Wolf'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 Alexander Wolf was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Alexander John Wolf, MD · NPI 1992327688
Pediatric Nephrology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since May 15, 2020.
## Identity
- **NPI:** 1992327688 (Entity type: Individual)
- **Enumerated:** May 15, 2020
- **Primary specialty:** Pediatrics - Pediatric Nephrology · taxonomy 2080P0210X
- **State license:** A186139 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1825 4TH ST FL 6, San Francisco, CA 94143-2350
- **Phone:** (415) 476-2423
## 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
- **Medical school:** Albert Einstein College Of Medicine Of Yeshiva University, class of 2020
## Record status
- **NPPES last updated:** June 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1992327688) · Data from the CMS NPPES public registry.