Quick answers
- Does Andrew J. Grossbach accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew J. Grossbach 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 Andrew J. Grossbach see?
- In 2024, CMS data shows 259 Original Medicare patients and 825 services for Andrew J. Grossbach. This counts Original Medicare only and measures volume, not quality.
- What is Andrew J. Grossbach's NPI number?
- 1033439047. 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 Andrew J. Grossbach, 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 | 259 |
|---|---|
| Services billed to Medicare | 825 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)149 services
- Fusion of additional segment of spine (22614)132 services
- New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)99 services
- Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)54 services
- Telephone medical discussion with physician, 11-20 minutes (99442)35 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%
- Arthritis75%
- Diabetes35%
- Ischemic heart disease35%
- Depression30%
Hospitals where Andrew J. Grossbach works
Medicare's Facility Affiliation Data lists Andrew J. Grossbach 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.
- Ohio State University State Health SystemColumbus, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360085
Practice locations
Addresses where Andrew J. Grossbach is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.
- 2400 13th StAshland, KY 41102 (606) 329‑0910
- 3900 Stoneridge LnDublin, OH 43017 (614) 366‑5001
- 410 W 10th AveColumbus, OH 43210 (614) 293‑8000
- 410 W 10th Ave, Doan 110Columbus, OH 43210
- 450 W 10th AveColumbus, OH 43210 (614) 293‑8000
Group practices
Medicare enrollment lists Andrew J. Grossbach as a member of these groups (CMS data updated October 2, 2026).
- OSU Internal Medicine LLC1,161 clinicians in the group
- Premier Therapy and Health Centers Inc258 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Ashland
Clinicians with the same Medicare primary specialty in Ashland, KY — not a recommendation.
Other clinicians in OSU Internal Medicine LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1033439047 |
| 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