SIAN MARA MS, PA-C
NPI 1114357126
Physician Assistant in San Francisco, CA
About Sian Mara Ms, Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SIAN MARA MS, PA-C (NPI 1114357126) is an individual physician assistant in San Francisco, California, licensed in New York (016771) and active in the NPI registry since November 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Sian Mara Ms, Pa-c 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.
Physician 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 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
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 Sian Mara's NPI number?
The NPI number for Sian Mara is 1114357126. It was assigned to this individual provider in the NPPES registry on November 13, 2013.
Where is Sian Mara located?
Sian Mara practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 746-1000.
What is Sian Mara's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Sian Mara enrolled in Medicare?
Yes. Sian Mara 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.
When was this NPI record last updated?
The NPPES record for Sian Mara was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Sian Mara, MS, PA-C · NPI 1114357126
Physician Assistant physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since November 13, 2013.
## Identity
- **NPI:** 1114357126 (Entity type: Individual)
- **Enumerated:** November 13, 2013
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** 016771 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 400 PARNASSUS AVE, San Francisco, CA 94143-2202
- **Phone:** (415) 746-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** September 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1114357126) · Data from the CMS NPPES public registry.