DR. CATHLEEN J MULLARKEY-DESAPIO MD
NPI 1225073505
Internal Medicine - Endocrinology, Diabetes & Metabolism in Princeton, NJ
About Dr. Cathleen J Mullarkey-desapio Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CATHLEEN J MULLARKEY-DESAPIO MD (NPI 1225073505) is an individual endocrinology, diabetes & metabolism provider in Princeton, New Jersey, licensed in New Jersey (25MA05531300) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Saint Peter's University Hospital, and is a graduate of Tufts University School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Cathleen J Mullarkey-desapio Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Cathleen Mullarkey-desapio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Brunswick, NJ 08901
- Reassigned Medicare billing, New Jersey enrollment
- Medicare enrollment name: Saint Peters University Hospital
- 325 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.
Areas of Expertise CMS Part B claims 4
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.
Saint Peter's University Hospital
Acute Care Hospitals · New Brunswick, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08540 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PRINCETON, NJ 08540
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 Cathleen Mullarkey-desapio's NPI number?
The NPI number for Cathleen Mullarkey-desapio is 1225073505. It was assigned to this individual provider in the NPPES registry on June 19, 2006.
Where is Cathleen Mullarkey-desapio located?
Cathleen Mullarkey-desapio practices at 419 N Harrison St, Princeton, NJ 08540. The listed phone number is (609) 924-9300.
What is Cathleen Mullarkey-desapio's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Cathleen Mullarkey-desapio enrolled in Medicare?
Yes. Cathleen Mullarkey-desapio is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Cathleen Mullarkey-desapio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cathleen Mullarkey-desapio reassigns Medicare benefits to Saint Peter's University Hospital (New Brunswick, NJ). 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 Cathleen Mullarkey-desapio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Cathleen Mullarkey-desapio accept?
Health plans from Oscar Health list Cathleen Mullarkey-desapio as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Cathleen Mullarkey-desapio affiliated with any hospitals?
According to CMS data, Cathleen Mullarkey-desapio is affiliated with Saint Peter's University Hospital.
When was this NPI record last updated?
The NPPES record for Cathleen Mullarkey-desapio was last updated on June 12, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Cathleen J Mullarkey-Desapio, MD · NPI 1225073505
Endocrinology, Diabetes & Metabolism physician in Princeton, New Jersey. Individual provider, active in the CMS NPPES registry since June 19, 2006.
## Identity
- **NPI:** 1225073505 (Entity type: Individual)
- **Enumerated:** June 19, 2006
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 25MA05531300 (New Jersey)
- **Sole proprietor:** No
## Practice location
- **Address:** 419 N HARRISON ST, Princeton, NJ 08540-3594
- **Phone:** (609) 924-9300 · **Fax:** (609) 430-9481
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Saint Peter's University Hospital (NPI 1114924834, New Brunswick, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** June 12, 2014
- **Other identifiers:** Medicare UPIN E62169 (NJ); Medicaid 0479900 (NJ); Medicare PIN MU625638 (NJ)
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Source: [NPI Profile](https://npiprofile.com/npi/1225073505) · Data from the CMS NPPES public registry.