William Gruhn, RPA-C
NPI 1588698682 · Surgical Physician Assistant · Rochester, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Gruhn, RPA-C is a Surgical Physician Assistant provider in Rochester, NY (NPI 1588698682).
Provider details
- NPI number
- 1588698682
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RPA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 10346 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
94 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 34 | $72 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 33 | $46 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 27 | $88 |
Typical Medicare-allowed amounts for these services range $46–$88 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 264 | 82 |
| Meloxicam | 146 | 82 |
| Methylprednisolone | 113 | 97 |
| Oxycodone Hcl | 93 | 29 |
| Cyclobenzaprine Hcl | 81 | 35 |
| Tramadol Hcl | 40 | 11 |
| Tizanidine Hcl | 26 | 17 |
| Naproxen | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2023-07-05
Frequently asked questions
- What is William Gruhn's NPI number?
- William Gruhn's National Provider Identifier (NPI) is 1588698682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gruhn's specialty?
- William Gruhn is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Gruhn located?
- William Gruhn's practice location on file with NPPES is 601 Elmwood Ave, Rochester, NY 14642-0001.
- What is William Gruhn's phone number?
- The practice phone number listed in the NPPES registry for William Gruhn is (585) 273-1869.
- Does William Gruhn accept Medicare?
- William Gruhn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Gruhn's NPI active?
- Yes — William Gruhn's NPI (1588698682) is active in the NPPES registry as of the last update on 2023-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.