MARTHA PLACK RN
NPI 1891531349
Nurse Practitioner in San Francisco, CA
About Martha Plack Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTHA PLACK RN (NPI 1891531349) is an individual nurse practitioner in San Francisco, California, licensed in California (95212247) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
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)
Martha Plack Rn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Martha Plack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 38 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 94109 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.
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 Martha Plack's NPI number?
The NPI number for Martha Plack is 1891531349. It was assigned to this individual provider in the NPPES registry on July 3, 2024.
Where is Martha Plack located?
Martha Plack practices at 1500 Franklin St, San Francisco, CA 94109. The listed phone number is (415) 474-7310.
What is Martha Plack's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Martha Plack enrolled in Medicare?
Yes. Martha Plack is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Martha Plack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martha Plack reassigns Medicare benefits to Felton Institute (San Francisco, CA). The 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 Martha Plack'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 Martha Plack was last updated on September 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Martha Plack, RN · NPI 1891531349
Nurse Practitioner physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 3, 2024.
## Identity
- **NPI:** 1891531349 (Entity type: Individual)
- **Enumerated:** July 3, 2024
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 95212247 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1500 FRANKLIN ST, San Francisco, CA 94109-4523
- **Phone:** (415) 474-7310
## 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:** Felton Institute (NPI 1104943828, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** September 18, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1891531349) · Data from the CMS NPPES public registry.