William Kerek, MD
NPI 1558349159 · Internal Medicine Physician · Akron, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Kerek, MD is a Internal Medicine Physician provider in Akron, OH (NPI 1558349159).
Provider details
- NPI number
- 1558349159
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 40905 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
570 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 352 | $102 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 155 | $121 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 30 | $73 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 18 | $70 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 15 | $172 |
Typical Medicare-allowed amounts for these services range $70–$172 (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 · 196 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 642 | 88 |
| Donepezil Hcl | 589 | 80 |
| Amlodipine Besylate | 413 | 58 |
| Memantine Hcl | 395 | 55 |
| Trazodone Hcl | 362 | 44 |
| Pantoprazole Sodium | 336 | 50 |
| Mirtazapine | 333 | 44 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-04
- Last updated
- 2011-09-08
Frequently asked questions
- What is William Kerek's NPI number?
- William Kerek's National Provider Identifier (NPI) is 1558349159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Kerek's specialty?
- William Kerek is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Kerek located?
- William Kerek's practice location on file with NPPES is 468 E Market St, Akron, OH 44304-1594.
- What is William Kerek's phone number?
- The practice phone number listed in the NPPES registry for William Kerek is (330) 376-4445.
- Does William Kerek accept Medicare?
- William Kerek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Kerek's NPI active?
- Yes — William Kerek's NPI (1558349159) is active in the NPPES registry as of the last update on 2011-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.