JOHN A ALLEY MD
NPI 1598727554
Family Medicine in Marcellus, NY
About John A Alley Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN A ALLEY MD (NPI 1598727554) is an individual family medicine provider in Marcellus, New York, licensed in New York (196637) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, holds a CLIA Microscopy certificate valid through May 21, 2028, and is affiliated with University Hospital S U N Y Health Science Center.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John A Alley Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show John Alley reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marcellus, NY 13108
- Reassigned Medicare billing, New York enrollment
- 8 clinicians in this Medicare group
Ithaca, NY 14850
- Reassigned Medicare billing, New York enrollment
- 59 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 33D0886532
John A Alley MD · Marcellus, NYAreas of Expertise CMS Part B claims 13
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Hospital S U N Y Health Science Center
Acute Care Hospitals · Syracuse, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 13108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 6
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 John Alley's NPI number?
The NPI number for John Alley is 1598727554. It was assigned to this individual provider in the NPPES registry on April 5, 2006.
Where is John Alley located?
John Alley practices at 28 1/2 E Main St, Marcellus, NY 13108. The listed phone number is (315) 673-9926.
What is John Alley's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is John Alley enrolled in Medicare?
Yes. John Alley is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Alley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Alley reassigns Medicare benefits to 2 organizations: Marcellus Family Medicine PLLC (Marcellus, NY) and Cma Medical Practice PLLC (Ithaca, NY). 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 John Alley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Does John Alley hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 33D0886532) is associated with this NPI, valid through May 21, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
Is John Alley affiliated with any hospitals?
According to CMS data, John Alley is affiliated with University Hospital S U N Y Health Science Center.
When was this NPI record last updated?
The NPPES record for John Alley was last updated on February 14, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.