SYLVIA STELLMACHER MD
NPI 1982233771
Internal Medicine - Critical Care Medicine in San Francisco, CA
About Sylvia Stellmacher Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SYLVIA STELLMACHER MD (NPI 1982233771) is an individual critical care medicine provider in San Francisco, California, licensed in California (A187260) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Sylvia Stellmacher 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 Sylvia Stellmacher reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bozeman, MT 59715
- Reassigned Medicare billing, Montana enrollment
- 402 clinicians in this Medicare group
Ketchikan, AK 99901
- Reassigned Medicare billing, Texas enrollment
- 640 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 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 4
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
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 Sylvia Stellmacher's NPI number?
The NPI number for Sylvia Stellmacher is 1982233771. It was assigned to this individual provider in the NPPES registry on April 3, 2020.
Where is Sylvia Stellmacher located?
Sylvia Stellmacher practices at 513 Parnassus Ave # 111, San Francisco, CA 94143. The listed phone number is (154) 760-7354.
What is Sylvia Stellmacher's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Sylvia Stellmacher enrolled in Medicare?
Yes. Sylvia Stellmacher 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 Sylvia Stellmacher's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sylvia Stellmacher reassigns Medicare benefits to 2 organizations: Bozeman Health Deaconess Hospital (Bozeman, MT) and Southeast Alaska Regional Health Consortium (Ketchikan, AK). 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 Sylvia Stellmacher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sylvia Stellmacher accept?
Health plans from Mountain Health CO-OP and Premera Blue Cross Blue Shield of Alaska list Sylvia Stellmacher as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Sylvia Stellmacher was last updated on June 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Sylvia Stellmacher, MD · NPI 1982233771
Critical Care Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 3, 2020.
## Identity
- **NPI:** 1982233771 (Entity type: Individual)
- **Enumerated:** April 3, 2020
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** A187260 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 513 PARNASSUS AVE # 111, San Francisco, CA 94143-2205
- **Phone:** (154) 760-7354
## 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): Bozeman Health Deaconess Hospital (NPI 1437529112, Bozeman, MT); Southeast Alaska Regional Health Consortium (NPI 1538922455, Ketchikan, AK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 23, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1982233771) · Data from the CMS NPPES public registry.