Quick answers
- Does Matthew J. Orenstein accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew J. Orenstein 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 Matthew J. Orenstein see?
- In 2024, CMS data shows 167 Original Medicare patients and 272 services for Matthew J. Orenstein. This counts Original Medicare only and measures volume, not quality.
- What is Matthew J. Orenstein's NPI number?
- 1396497442. 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 Matthew J. Orenstein, 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 | 167 |
|---|---|
| Services billed to Medicare | 272 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)49 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)41 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
- Emergency department visit with low level of medical decision making (99283)22 services
- X-ray of knee, 4 or more views (73564)14 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 pressure75%
- High cholesterol75%
- Arthritis68%
- Anxiety40%
- Depression37%
- Ischemic heart disease34%
Hospitals where Matthew J. Orenstein works
Medicare's Facility Affiliation Data lists Matthew J. Orenstein 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.
- Monument Health Rapid City HospitalRapid City, SD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 430077
Practice locations
Addresses where Matthew J. Orenstein is enrolled with Medicare (CMS data updated October 2, 2026).
- 1303 N Lacrosse StRapid City, SD 57701 (605) 755‑6600
- 2116 Jackson BlvdRapid City, SD 57702 (605) 755‑3900
- 2526 Elderberry BlvdRapid City, SD 57703 (605) 755‑2273
- 353 Fairmont BlvdRapid City, SD 57701
- 375 Berky DrBox Elder, SD 57719 (605) 755‑2273
Group practices
Medicare enrollment lists Matthew J. Orenstein as a member of this group (CMS data updated October 2, 2026).
- Monument Health Rapid City Hospital Inc564 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Rapid City
Clinicians with the same Medicare primary specialty in Rapid City, SD — not a recommendation.
Other clinicians in Monument Health Rapid City Hospital Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396497442 |
| 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