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
- Entity
- Type 1 · individual
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, MDCritical Care Medicine (Internal Medicine) 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
96% 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 355 among the 49,029 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 hospital and facility affiliations
- 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 affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
4 emergency medicine physician records list a Geneva practice address
They are 4 of the 154 NPPES records with a Geneva practice address, and 2,663 emergency medicine physician records in Ohio.
All 4 in Geneva → All 2,663 in Ohio → Every provider in Geneva →
Other emergency medicine physician records in Ohio
- Alexandra Abangan, MDSpringfield, OH1508121641
- Brian Abbott, MDColumbus, OH1841591757
- Abdalla Abdalla, MDLima, OH1952046682
- Ali Abdallah, DOCanton, OH1134749997
- Anthony Abdullah, M.D.Hamilton, OH1457319386
- Mikhael Abourjeily, D.O.Mentor, OH1982689758
- Michael Abrahams, M.D.Logan, OH1487098463
- Arun Acharekar, MDMansfield, OH1659411544
- Kevin Ackley, MDCincinnati, OH1952340903
- Kirstin Acus, MDColumbus, OH1548823669
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 355. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.