Gregory A Holzhei, DO - Medicare Family Practice in Saint Johns, MI

Gregory A Holzhei, DO is a medicare enrolled "Family Medicine" physician in Saint Johns, Michigan. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Sparrow Clinton Hospital and his current practice location is 901 S Oakland St, Suite 204, Saint Johns, Michigan. You can reach out to his office (for appointments etc.) via phone at (989) 224-2338.

Gregory A Holzhei is licensed to practice in Michigan (license number 5101013906) 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 1073585444.

Contact Information

Gregory A Holzhei, DO
901 S Oakland St, Suite 204,
Saint Johns, MI 48879-2200
(989) 224-2338
(989) 224-2065

Map and Direction




Physician's Profile

Full NameGregory A Holzhei
GenderMale
SpecialityFamily Practice
Experience26 Years
Location901 S Oakland St, Saint Johns, Michigan
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:
  • Gregory A Holzhei graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1073585444
  • Provider Enumeration Date: 02/01/2006
  • Last Update Date: 01/09/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 6800062860
  • Enrollment ID: I20120209000608

Medical Identifiers

Medical identifiers for Gregory A Holzhei such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073585444NPI-NPPES
01-01374OtherMIPHP
4474532MedicaidMI
7755233OtherMIAETNA/PPOM
080192531OtherMIRAILROAD MEDICARE
081900134OtherMIBCN
700A910020OtherMIBCBS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 5101013906 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Great Lakes CaringJackson, MIHome health agency
Sparrow Clinton HospitalSaint johns, MIHospital
Edward W Sparrow HospitalLansing, MIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sparrow Clinton Hospital539565885016

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. Gregory A Holzhei allows following entities to bill medicare on his behalf.
Entity NameSparrow Clinton Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306893078
PECOS PAC ID: 5395658850
Enrollment ID: O20040301000072
Entity NameSparrow Clinton Hospital
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1093809824
PECOS PAC ID: 5395658850
Enrollment ID: O20111222000366

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. Gregory A Holzhei 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
Gregory A Holzhei, DO
901 S Oakland St, Suite 204,
Saint Johns, MI 48879-2200

Ph: (989) 224-2338
Gregory A Holzhei, DO
901 S Oakland St, Suite 204,
Saint Johns, MI 48879-2200

Ph: (989) 224-2338

Reviews and Comments


Family Medicine Doctors in Saint Johns, MI

Dr. Andrew W Messenger, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1005 S Us Highway 27, Suite 100, Saint Johns, MI 48879
Phone: 989-224-3000    Fax: 989-224-1424
Maria Livieratos, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1501 Waterford Pkwy Ste B, Saint Johns, MI 48879
Phone: 989-534-2353    Fax: 989-534-2352
Taylor Thelen, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1005 S Us Highway 27, Suite 100, Saint Johns, MI 48879
Phone: 989-224-3000    Fax: 989-224-1424
Dr. Steve Ralph Lasater, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1055 S Us Highway 27, Saint Johns, MI 48879
Phone: 989-224-3000    Fax: 989-224-1424
Dr. Whitnee Jane Essenmacher, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 901 S Oakland St Ste 201, Saint Johns, MI 48879
Phone: 989-224-2338    
Dr. Lars P Andersen Jr., D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1005 S Us Highway 27, Suite 100, Saint Johns, MI 48879
Phone: 989-224-3000    Fax: 989-224-1424

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.