JACK MARTIN PERCELAY MD
NPI 1255322202
Hospitalist in Palo Alto, CA
About Jack Martin Percelay Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JACK MARTIN PERCELAY MD (NPI 1255322202) is an individual hospitalist provider in Palo Alto, California, licensed in California (G66425) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jack Martin Percelay Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Jack Percelay reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 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 94304 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 Jack Percelay's NPI number?
The NPI number for Jack Percelay is 1255322202. It was assigned to this individual provider in the NPPES registry on October 31, 2005.
Where is Jack Percelay located?
Jack Percelay practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.
What is Jack Percelay's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Jack Percelay enrolled in Medicare?
Yes. Jack Percelay is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jack Percelay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jack Percelay reassigns Medicare benefits to 2 organizations: Lpch Medical Group Div Of Lucile (Palo Alto, CA) and Stanford Health Care (Stanford, 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 Jack Percelay'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 Jack Percelay was last updated on April 28, 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.
# Jack Martin Percelay, MD · NPI 1255322202
Hospitalist physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since October 31, 2005.
## Identity
- **NPI:** 1255322202 (Entity type: Individual)
- **Enumerated:** October 31, 2005
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** G66425 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 725 WELCH RD, Palo Alto, CA 94304-1601
- **Phone:** (650) 497-8000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Lpch Medical Group Div Of Lucile (NPI 1417907940, Palo Alto, CA); Stanford Health Care (NPI 1437292927, Stanford, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 28, 2024
- **Other identifiers:** Medicaid 0028371 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1255322202) · Data from the CMS NPPES public registry.