Quick answers
- Does Jeffrey S. Marrs accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey S. Marrs 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 Jeffrey S. Marrs see?
- In 2024, CMS data shows 273 Original Medicare patients and 1,905 services for Jeffrey S. Marrs. This counts Original Medicare only and measures volume, not quality.
- What is Jeffrey S. Marrs's NPI number?
- 1093795767. 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 Jeffrey S. Marrs, 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 | 273 |
|---|---|
| Services billed to Medicare | 1,905 |
| Different services or procedures | 39 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)1,360 services
- Replacement of knee joint, both sides of knee (27447)74 services
- Replacement of thigh bone and hip joint with prosthesis (27130)73 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)58 services
- X-ray of knee, 4 or more views (73564)47 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%
- Arthritis75%
- High blood pressure72%
- Chronic kidney disease26%
- Diabetes25%
- Ischemic heart disease25%
Hospitals where Jeffrey S. Marrs works
Medicare's Facility Affiliation Data lists Jeffrey S. Marrs 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.
- Black Hills Surgical Hospital LLCRapid City, SD · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 430091
- Box Butte General HospitalAlliance, NE · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 281360
- Gordon Memorial Hospital DistrictGordon, NE · Critical Access Hospital · Emergency services: listed by Medicare · CCN 281358
- Monument Health Custer HospitalCuster, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431323
- 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 Jeffrey S. Marrs is enrolled with Medicare (CMS data updated October 2, 2026).
- 216 Anamaria DrRapid City, SD 57701
- 4141 5th StRapid City, SD 57701 (605) 341‑1414
- 7220 Mount Rushmore RdRapid City, SD 57702 (605) 737‑9151
Group practices
Medicare enrollment lists Jeffrey S. Marrs as a member of these groups (CMS data updated October 2, 2026).
- Black Hills Surgical Hospital LLC174 clinicians in the group
- Black Hills Orthopedic and Spine Center Inc72 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Rapid City
Clinicians with the same Medicare primary specialty in Rapid City, SD — not a recommendation.
Other clinicians in Black Hills Surgical Hospital LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Mayo Medical School |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093795767 |
| 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