Quick answers
- Does Harlan G. Rich accept Medicare assignment?
- Yes. Medicare's clinician data says Harlan G. Rich 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 Harlan G. Rich see?
- In 2024, CMS data shows 252 Original Medicare patients and 440 services for Harlan G. Rich. This counts Original Medicare only and measures volume, not quality.
- What is Harlan G. Rich's NPI number?
- 1912947045. 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 Harlan G. Rich, 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 patients | 252 |
|---|---|
| Services billed to Medicare | 440 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)121 services
- Biopsy of large bowel using a flexible endoscope (45380)66 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)48 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)36 services
- Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)29 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 pressure72%
- Arthritis46%
- Diabetes29%
- Anxiety29%
- Ischemic heart disease27%
Hospitals where Harlan G. Rich works
Medicare's Facility Affiliation Data lists Harlan G. Rich 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.
- Rhode Island HospitalProvidence, RI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 410007
- The Miriam HospitalProvidence, RI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 410012
Practice locations
Addresses where Harlan G. Rich is enrolled with Medicare (CMS data updated October 2, 2026).
- 245 Chapman St, Suite 300Providence, RI 02905 (401) 444‑5280
- 375 Wampanoag TrlRiverside, RI 02915 (401) 649‑4010
- 593 Eddy StProvidence, RI 02903 (401) 444‑5280
- 62 Amaral StRiverside, RI 02915 (401) 643‑4030
Group practices
Medicare enrollment lists Harlan G. Rich as a member of these groups (CMS data updated October 2, 2026).
- Lifespan Physician Group Inc1,173 clinicians in the group
- Rhode Island Hospital437 clinicians in the group
- Brown Medicine217 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Providence
Clinicians with the same Medicare primary specialty in Providence, RI — not a recommendation.
Other clinicians in Lifespan Physician Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912947045 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians