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Internal Medicine

Ralph M. Gibson Jr., MD

Works at hospitals in Stony Brook, NY · New York

Summary

Dr. Ralph M. Gibson Jr., MD is an internal medicine doctor at 234 Hampton Rd, Southampton, NY 11968. Phone: (631) 324-4700. May accept Medicare assignment. In 2024, Ralph M. Gibson Jr. had 148 Original Medicare patients and 637 services. NPI 1972603066. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 234 Hampton Rd, Southampton, NY 11968 · Directions
  • Phone: (631) 324‑4700
  • Medicare: May accept Medicare assignment
  • Hospital: Suny/Stony Brook University Hospital
  • Group practice: Ralph M Gibson M D P C
  • Medical school: Js Weill Medical College, Cornell University · graduated 1994 (32 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ralph M. Gibson Jr., 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 Ralph M. Gibson Jr. accept Medicare assignment?
Medicare's clinician data says Ralph M. Gibson Jr. may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Ralph M. Gibson Jr. see?
In 2024, CMS data shows 148 Original Medicare patients and 637 services for Ralph M. Gibson Jr.. This counts Original Medicare only and measures volume, not quality.
What is Ralph M. Gibson Jr.'s NPI number?
1972603066. 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 Ralph M. Gibson Jr., 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 patients148
Services billed to Medicare637
Different services or procedures29
Participating Medicare providerYes
Average age of these patients77

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)185 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)126 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)96 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)61 services
  5. Administration of influenza virus vaccine (G0008)38 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%
  • Diabetes70%
  • High blood pressure64%
  • Arthritis44%
  • Ischemic heart disease28%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)18%

Hospitals where Ralph M. Gibson Jr. works

Medicare's Facility Affiliation Data lists Ralph M. Gibson Jr. 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 Ralph M. Gibson Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ralph M. Gibson Jr. as a member of this group (CMS data updated October 2, 2026).

  • Ralph M Gibson M D P C3 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Southampton

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

All internal medicine doctors in Southampton →

Other clinicians in Ralph M Gibson M D P C

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

Clinician information

CredentialMD
Medical schoolJs Weill Medical College, Cornell University
Graduation year1994 (32 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1972603066
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