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Pathology

Sunjida Ahmed, MD

Works at hospitals in Stony Brook, NY · New York

Summary

Dr. Sunjida Ahmed, MD is a pathologist at 100 Nicolls Rd, Stony Brook, NY 11790. Phone: (631) 444-2222. Accepts Medicare assignment. In 2024, Sunjida Ahmed had 830 Original Medicare patients and 2,800 services. NPI 1306297023. 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: Pathologist (Medicare lists Pathology)
  • Address: 100 Nicolls Rd, Stony Brook, NY 11790 · Directions
  • Phone: (631) 444‑2222
  • Medicare: Accepts Medicare assignment
  • Hospital: Suny/Stony Brook University Hospital
  • Group practice: Stony Brook Pathologists, University Faculty Practice Corporation
  • Medical school: graduated 1999 (27 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Sunjida Ahmed, 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 Sunjida Ahmed accept Medicare assignment?
Yes. Medicare's clinician data says Sunjida Ahmed 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 Sunjida Ahmed see?
In 2024, CMS data shows 830 Original Medicare patients and 2,800 services for Sunjida Ahmed. This counts Original Medicare only and measures volume, not quality.
What is Sunjida Ahmed's NPI number?
1306297023. 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 Sunjida Ahmed, 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 patients830
Services billed to Medicare2,800
Different services or procedures16
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,755 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)470 services
  3. Special stained specimen slides to examine tissue, initial procedure (88342)231 services
  4. Pathology examination of tissue using a microscope, moderately high complexity (88307)99 services
  5. Special stained specimen slides to examine tissue including interpretation and report (88313)55 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%
  • Arthritis47%
  • Ischemic heart disease41%
  • Diabetes35%
  • Anxiety29%

Hospitals where Sunjida Ahmed works

Medicare's Facility Affiliation Data lists Sunjida Ahmed 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 Sunjida Ahmed is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sunjida Ahmed as a member of this group (CMS data updated October 2, 2026).

  • Stony Brook Pathologists, University Faculty Practice Corporation25 clinicians in the group

Specialties

Find other Pathology doctors in New York →

Other pathologists in Stony Brook

Clinicians with the same Medicare primary specialty in Stony Brook, NY — not a recommendation.

All pathologists in Stony Brook →

Other clinicians in Stony Brook Pathologists, University Faculty Practice Corporation

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

Clinician information

CredentialMD
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1306297023
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