GRAYCE MEDICAL, CA PC
NPI 1699565655
General Practice in San Francisco, CA
About Grayce Medical, Ca Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRAYCE MEDICAL, CA PC (NPI 1699565655) is a healthcare organization registered as a general practice in San Francisco, California and active in the NPI registry since May 2025. The organization lists Mark Shen, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Grayce Medical, Ca Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
5Medicare enrollment records show 5 clinicians reassign Medicare billing to Grayce Medical, Ca PC, which bills Medicare for the services they deliver. They are listed nearest first.
Clinicians, nearest first (5)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Grayce Medical, Ca PC's NPI number?
The NPI number for Grayce Medical, Ca PC is 1699565655. It was assigned to this organization in the NPPES registry on May 12, 2025.
Where is Grayce Medical, Ca PC located?
Grayce Medical, Ca PC is located at 1400 Greenwich St Apt 9, San Francisco, CA 94109. The listed phone number is (628) 237-0813.
What is Grayce Medical, Ca PC's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Grayce Medical, Ca PC enrolled in Medicare?
Yes. Grayce Medical, Ca PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Grayce Medical, Ca PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians reassign their Medicare billing to Grayce Medical, Ca PC, in Emergency Medicine, General Surgery, Internal Medicine and Pediatric Medicine. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Grayce Medical, Ca PC was last updated on August 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Grayce Medical, Ca Pc · NPI 1699565655
General Practice organization in San Francisco, California. Organization record, active in the CMS NPPES registry since May 12, 2025.
## Identity
- **NPI:** 1699565655 (Entity type: Organization)
- **Enumerated:** May 12, 2025
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **Organization subpart:** No
- **Authorized official:** Mark Shen, PRESIDENT
## Practice location
- **Address:** 1400 GREENWICH ST APT 9, San Francisco, CA 94109-1444
- **Phone:** (628) 237-0813
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 5 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (2), Emergency Medicine (1), General Surgery (1) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1699565655) · Data from the CMS NPPES public registry.