William Berk, MD
Emergency Medicine Physician · Geneva, OH
William Berk, MD is an emergency medicine physician with a practice address in Geneva, Ohio, and NPI 1184078610, issued on Apr 21, 2016. Check the license (Ohio 35.139227, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William Berk
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 35.139227 OH
306121 NY
86879 WI
Self-reported in NPPES; status is on the state search - Practice location
- 870 W Main St, Geneva, OH 44041
- Phone
- (240) 686-2300
- Enumerated
- Apr 21, 2016
- Record last updated
- May 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20251119002618); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,002 in Ohio → Look up another NPI →
Also registered at 870 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark AndersonPhysical Therapy Assistant1770437063
- John Baron, MDPulmonary Disease Physician1548358674
- Darlene Barron, DOEmergency Medicine Physician1215900964
- Lauren BeckOccupational Therapist1922959204
- Elaina Bohanon, PA-CMedical Physician Assistant1336860642
- Ashley CareyFamily Nurse Practitioner1184244667
Verify William Berk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.139227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average emergency medicine physician in 2024
13 Medicare Part D claims for 11 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
3 hospitals and group practices
- Rochester General HospitalRochester, NY · Acute Care Hospitals2 of 5 stars
- Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Rhinelander, WI
- Mchs Hospitals IncMarshfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
William Berk among 3,002 emergency medicine physician records in Ohio
William Berk, MD is one of 3,002 emergency medicine physician records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 69% of them.
- NPI issued2016 · 69% of these records are older, 27% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2016 · median 2013 among the 1,720 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 emergency medicine physician records list a practice address in Geneva
They are 4 of the 154 NPPES records with a practice address in Geneva, and 3,002 emergency medicine physician records in Ohio.
All 3,002 in Ohio → Every provider in Geneva → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Darlene Barron, DOGeneva, OH 440411215900964
- Randy Curtin, DOGeneva, OH 440411801859103
- Vina Tran, MDGeneva, OH 440411881251528
- Teresa DeakGrafton, OH 440441679701346
- Richard Hausrod, MDElyria, OH 440351962493304
- Michael Kaminski, MDElyria, OH 440351588193825
- Stacey Mardis, M.D.Elyria, OH 440351144532730
- Melissa Marker, DOElyria, OH 440351548298086
Common questions
What is William Berk, MD's NPI number?
William Berk, MD's National Provider Identifier (NPI) is 1184078610, issued on Apr 21, 2016. An NPI identifies a provider in billing; it is not a license.
Where is William Berk, MD located?
The NPPES record lists a practice address at 870 W Main St, Geneva, OH, 44041. Phone: (240) 686-2300. Providers update this record themselves, so call before visiting.
How can I verify William Berk, MD's license?
NPPES lists Ohio license number 35.139227, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Berk, MD prescribe under Medicare Part D?
In 2024, William Berk, MD had 13 Medicare Part D claims for 11 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.