MARY HAN
NPI 1912526955
Anesthesiology in San Francisco, CA
About Mary Han NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY HAN (NPI 1912526955) is an individual anesthesiology provider in San Francisco, California, licensed in California (188336) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, San Francisco School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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
Mary Han 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
3Medicare enrollment records show Mary Han 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 94116
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 clinicians in this Medicare group
Oakland, CA 94609
- Reassigned Medicare billing, California enrollment
- 68 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 Mary Han's NPI number?
The NPI number for Mary Han is 1912526955. It was assigned to this individual provider in the NPPES registry on April 9, 2020.
Where is Mary Han located?
Mary Han practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (562) 896-0322.
What is Mary Han's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mary Han enrolled in Medicare?
Yes. Mary Han 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 Mary Han's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Han reassigns Medicare benefits to 3 organizations: City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA) and East Bay Anesthesiology Medical Group, Inc (Oakland, 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 Mary Han'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 Mary Han was last updated on May 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Mary Han · NPI 1912526955
Anesthesiology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 9, 2020.
## Identity
- **NPI:** 1912526955 (Entity type: Individual)
- **Enumerated:** April 9, 2020
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 188336 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 505 PARNASSUS AVE, San Francisco, CA 94143-2204
- **Phone:** (562) 896-0322
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): City & County Of San Francisco (NPI 1528083300, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA); East Bay Anesthesiology Medical Group, Inc (NPI 1649226242, Oakland, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** May 5, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1912526955) · Data from the CMS NPPES public registry.