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Obstetrics/Gynecology

Pedro R. Segarra, MD

Works at hospitals in Stony Brook, NY · New York

Summary

Dr. Pedro R. Segarra, MD is an OB-GYN at 100 Nicolls Rd, Stony Brook, NY 11794. Phone: (631) 444-7650. Accepts Medicare assignment. In 2024, Pedro R. Segarra had 89 Original Medicare patients and 172 services. NPI 1871598847. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 100 Nicolls Rd, Stony Brook, NY 11794 · Directions (2 more locations)
  • Phone: (631) 444‑7650
  • Medicare: Accepts Medicare assignment
  • Hospital: Suny/Stony Brook University Hospital
  • Group practice: University Associates in Obstetrics and Gynecology University Faculty
  • Medical school: New York Medical College · graduated 1983 (43 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Pedro R. Segarra, 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 Pedro R. Segarra accept Medicare assignment?
Yes. Medicare's clinician data says Pedro R. Segarra 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 Pedro R. Segarra see?
In 2024, CMS data shows 89 Original Medicare patients and 172 services for Pedro R. Segarra. This counts Original Medicare only and measures volume, not quality.
What is Pedro R. Segarra's NPI number?
1871598847. 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 Pedro R. Segarra, 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 patients89
Services billed to Medicare172
Different services or procedures27
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)36 services
  2. Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina (76830)25 services
  3. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)25 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)20 services
  5. Pelvic exam (99459)13 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 cholesterol75%
  • High blood pressure65%
  • Arthritis40%
  • Diabetes27%
  • Anxiety25%
  • Ischemic heart disease22%

Hospitals where Pedro R. Segarra works

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

Group practices

Medicare enrollment lists Pedro R. Segarra as a member of this group (CMS data updated October 2, 2026).

  • University Associates in Obstetrics and Gynecology University Faculty112 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in New York →

Other OB-GYNs in Stony Brook

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

All OB-GYNs in Stony Brook →

Other clinicians in University Associates in Obstetrics and Gynecology University Faculty

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

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871598847
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