William Grabowski, PA-C
NPI 1689689523 · Medical Physician Assistant · Savannah, GA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Grabowski, PA-C is a Medical Physician Assistant provider in Savannah, GA (NPI 1689689523).
Provider details
- NPI number
- 1689689523
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 004807 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
980 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 805 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 127 | $99 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 18 | $50 |
| Injection of Trigger Points, 1-2 Muscles20552 | 15 | $41 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 15 | $44 |
Typical Medicare-allowed amounts for these services range $41–$99 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 402 | 103 |
| Tizanidine Hcl | 213 | 56 |
| Pregabalin | 158 | 46 |
| Tramadol Hcl | 151 | 44 |
| Cyclobenzaprine Hcl | 139 | 43 |
| Baclofen | 111 | 36 |
| Zolpidem Tartrate | 81 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$540 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-29
- Last updated
- 2020-05-05
- Certified
- 2020-05-05
Frequently asked questions
- What is William Grabowski's NPI number?
- William Grabowski's National Provider Identifier (NPI) is 1689689523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Grabowski's specialty?
- William Grabowski is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Grabowski located?
- William Grabowski's practice location on file with NPPES is 8 Wheeler St, Savannah, GA 31405-5710.
- What is William Grabowski's phone number?
- The practice phone number listed in the NPPES registry for William Grabowski is (912) 352-4340.
- Does William Grabowski accept Medicare?
- William Grabowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Grabowski's NPI active?
- Yes — William Grabowski's NPI (1689689523) is active in the NPPES registry as of the last update on 2020-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.