Jack Percelay, MD
NPI 1255322202 · Hospitalist Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Percelay, MD is a Hospitalist Physician provider in Palo Alto, CA (NPI 1255322202).
Provider details
- NPI number
- 1255322202
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MA07157000 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,158 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 100 E 77th StDepartment of Pediatrics, Lenox Hill HospitalNew York, NY 10075-1850Phone: (212) 434-2135
Registry dates
- Enumerated
- 2005-10-31
- Last updated
- 2024-04-28
- Certified
- 2024-04-28
Frequently asked questions
- What is Jack Percelay's NPI number?
- Jack Percelay's National Provider Identifier (NPI) is 1255322202, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Percelay's specialty?
- Jack Percelay is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Percelay located?
- Jack Percelay's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Jack Percelay's phone number?
- The practice phone number listed in the NPPES registry for Jack Percelay is (650) 497-8000.
- Does Jack Percelay accept Medicare?
- Jack Percelay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Percelay's NPI active?
- Yes — Jack Percelay's NPI (1255322202) is active in the NPPES registry as of the last update on 2024-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.