Quick answers
- Does Raymond L. Larsen accept Medicare assignment?
- Yes. Medicare's clinician data says Raymond L. Larsen 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 Raymond L. Larsen see?
- In 2024, CMS data shows 180 Original Medicare patients and 3,964 services for Raymond L. Larsen. This counts Original Medicare only and measures volume, not quality.
- What is Raymond L. Larsen's NPI number?
- 1932193737. 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 Raymond L. Larsen, 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 | 180 |
|---|---|
| Services billed to Medicare | 3,964 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Injection, avacincaptad pegol, 0.1 mg (J2782)1,280 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)263 services
- Injection of drug into eye (67028)177 services
- Imaging of retina (92134)166 services
- Injection, aflibercept, 1 mg (J0178)98 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 pressure69%
- High cholesterol62%
- Arthritis33%
- Diabetes29%
- Chronic kidney disease25%
- Ischemic heart disease22%
Hospitals where Raymond L. Larsen works
Medicare's Facility Affiliation Data lists Raymond L. Larsen 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.
- Jamestown Regional Medical CenterJamestown, ND · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 351335
Practice locations
Addresses where Raymond L. Larsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 920 10th St SE, Suite 1Jamestown, ND 58401 (701) 252‑9020
Specialties
- Ophthalmologyprimary
Other ophthalmologists in North Dakota
Clinicians with the same Medicare primary specialty in North Dakota — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932193737 |
| 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