Quick answers
- Does Richard J. Geller accept Medicare assignment?
- Yes. Medicare's clinician data says Richard J. Geller 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 Richard J. Geller see?
- In 2024, CMS data shows 540 Original Medicare patients and 1,598 services for Richard J. Geller. This counts Original Medicare only and measures volume, not quality.
- What is Richard J. Geller's NPI number?
- 1588605133. 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 Richard J. Geller, 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 | 540 |
|---|---|
| Services billed to Medicare | 1,598 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)861 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)198 services
- Special stained specimen slides to examine tissue, initial procedure (88342)175 services
- Cell examination of specimen, selective cellular enhancement technique (88112)79 services
- Preparation of tissue for examination by removing any calcium present (88311)57 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 cholesterol72%
- High blood pressure65%
- Arthritis43%
- Anxiety28%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)28%
- Depression25%
Hospitals where Richard J. Geller works
Medicare's Facility Affiliation Data lists Richard J. Geller 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.
- Emerson Hospital -W Concord, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220084
Practice locations
Addresses where Richard J. Geller is enrolled with Medicare (CMS data updated October 2, 2026).
- 133 Old Rd To 9 Acre CorConcord, MA 01742 (978) 287‑3355
Group practices
Medicare enrollment lists Richard J. Geller as a member of this group (CMS data updated October 2, 2026).
- Emerson Pathology Associates Inc4 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Concord
Clinicians with the same Medicare primary specialty in Concord, MA — not a recommendation.
Other clinicians in Emerson Pathology Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 1972 (54 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588605133 |
| 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