William Berk, MD - Medicare Emergency Medicine in Geneva, OH

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William Berk, MD is a medicare enrolled "Emergency Medicine" physician in Geneva, Ohio. He graduated from medical school in 2016 and has 10 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Mchs Hospitals Inc, Rochester General Hospital, Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc. and his current practice location is 870 W Main St, Geneva, Ohio. You can reach out to his office (for appointments etc.) via phone at (240) 686-2300.

William Berk is licensed to practice in New York (license number 306121) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1184078610.

Contact Information

William Berk, MD
870 W Main St,
Geneva, OH 44041-1219
(240) 686-2300
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Berk
GenderMale
SpecialityEmergency Medicine
Experience10 Years
Location870 W Main St, Geneva, Ohio
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William Berk graduated from medical school in 2016
  NPI Data:
  • NPI Number: 1184078610
  • Provider Enumeration Date: 04/21/2016
  • Last Update Date: 05/07/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0648508002
  • Enrollment ID: I20251119002618

Medical Identifiers

Medical identifiers for William Berk such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184078610NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 86879 (Wisconsin)Secondary
207P00000XEmergency Medicine 306121 (New York)Primary
207P00000XEmergency Medicine 35.139227 (Ohio)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Marshfield Medical CenterMarshfield, WIHospital
Aspirus Rhinelander HospitalRhinelander, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mchs Hospitals Inc56980711731195
Rochester General Hospital02441494741192
Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.9335059856566

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. William Berk allows following entities to bill medicare on his behalf.
Entity NameMarshfield Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952347981
PECOS PAC ID: 2264345206
Enrollment ID: O20031106000590
Entity NameAspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144991340
PECOS PAC ID: 9335059856
Enrollment ID: O20031126000706
Entity NameBeaver Dam Community Hospitals Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972188555
PECOS PAC ID: 2567370539
Enrollment ID: O20040210000666
Entity NameHoward Young Medical Center Inc of Woodruff Wisconsin
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184673352
PECOS PAC ID: 4183519606
Enrollment ID: O20040419000970
Entity NameAspirus Eagle River Hospital & Clinics, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346204385
PECOS PAC ID: 1658361951
Enrollment ID: O20040518000233
Entity NameMemorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346239373
PECOS PAC ID: 2365433224
Enrollment ID: O20040519001426
Entity NameFlambeau Hospital, Inc.
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1700963048
PECOS PAC ID: 9032029871
Enrollment ID: O20070828000478
Entity NameMemorial Hospital Inc
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1346239373
PECOS PAC ID: 2365433224
Enrollment ID: O20110526000807
Entity NameMchs Hospitals Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093221434
PECOS PAC ID: 5698071173
Enrollment ID: O20180208000096
Entity NameLakeview Medical Center Inc of Rice Lake
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093201832
PECOS PAC ID: 6103737820
Enrollment ID: O20180817001484
Entity NameMchs Hospitals Inc
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1952890873
PECOS PAC ID: 5698071173
Enrollment ID: O20180904002962
Entity NameFlambeau Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194317966
PECOS PAC ID: 9032029871
Enrollment ID: O20210409000059

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. William Berk is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William Berk, MD
158 W Main Rd,
Conneaut, OH 44030-2039

Ph: (240) 686-2300		William Berk, MD
870 W Main St,
Geneva, OH 44041-1219

Ph: (240) 686-2300

Reviews and Comments


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Dr. Darlene A Barron, DO
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Phone: 440-466-1141    Fax: 330-656-5901
Randy Curtin, DO
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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.