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Endocrinology

Cathleen Mullarkey Desapio, MD

Works at hospitals in New Brunswick, NJ · New Jersey

Summary

Dr. Cathleen Mullarkey Desapio, MD is an endocrinologist at 254 Easton Ave, New Brunswick, NJ 08901. Phone: (732) 745-8600. Accepts Medicare assignment. In 2024, Cathleen Mullarkey Desapio had 63 Original Medicare patients and 300 services. NPI 1225073505. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Endocrinologist (Medicare lists Endocrinology)
  • Address: 254 Easton Ave, New Brunswick, NJ 08901 · Directions
  • Phone: (732) 745‑8600
  • Medicare: Accepts Medicare assignment
  • Hospital: Saint Peter's University Hospital
  • Group practice: Saint Peters University Hospital
  • Medical school: Tufts University School Of Medicine · graduated 1984 (42 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cathleen Mullarkey Desapio, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Cathleen Mullarkey Desapio accept Medicare assignment?
Yes. Medicare's clinician data says Cathleen Mullarkey Desapio accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Cathleen Mullarkey Desapio see?
In 2024, CMS data shows 63 Original Medicare patients and 300 services for Cathleen Mullarkey Desapio. This counts Original Medicare only and measures volume, not quality.
What is Cathleen Mullarkey Desapio's NPI number?
1225073505. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Cathleen Mullarkey Desapio, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients63
Services billed to Medicare300
Different services or procedures7
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)112 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)72 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)58 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)50 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes75%
  • Chronic kidney disease62%
  • Ischemic heart disease60%
  • Arthritis57%

Hospitals where Cathleen Mullarkey Desapio works

Medicare's Facility Affiliation Data lists Cathleen Mullarkey Desapio at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Cathleen Mullarkey Desapio is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cathleen Mullarkey Desapio as a member of this group (CMS data updated October 2, 2026).

  • Saint Peters University Hospital162 clinicians in the group

Specialties

Find other Endocrinology doctors in New Jersey →

Other endocrinologists in New Brunswick

Clinicians with the same Medicare primary specialty in New Brunswick, NJ — not a recommendation.

All endocrinologists in New Brunswick →

Other clinicians in Saint Peters University Hospital

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolTufts University School Of Medicine
Graduation year1984 (42 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225073505
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians