Dr Mark S Harrison, MD - Medicare Infectious Disease in Saint Joseph, MI

Dr Mark S Harrison, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Saint Joseph, Michigan. He went to University Of Michigan Medical School and graduated in 1986 and has 38 years of diverse experience with area of expertise as Infectious Disease. He is a member of the group practice Lakeland Medical Practices and his current practice location is 1234 Napier Ave, Saint Joseph, Michigan. You can reach out to his office (for appointments etc.) via phone at (269) 471-1700.

Dr Mark S Harrison is licensed to practice in Michigan (license number 4301407295) 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 1346278108.

Contact Information

Dr Mark S Harrison, MD
1234 Napier Ave,
Saint Joseph, MI 49085-2112
(269) 471-1700
(269) 471-1975

Map and Direction




Physician's Profile

Full NameDr Mark S Harrison
GenderMale
SpecialityInfectious Disease
Experience38 Years
Location1234 Napier Ave, Saint Joseph, 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:
  • Dr Mark S Harrison attended and graduated from University Of Michigan Medical School in 1986
  NPI Data:
  • NPI Number: 1346278108
  • Provider Enumeration Date: 06/29/2006
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4789597055
  • Enrollment ID: I20071023000328

Medical Identifiers

Medical identifiers for Dr Mark S Harrison such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346278108NPI-NPPES
1538397120OtherMIGROUP NPI
76-30001OtherMIPHP
4382664MedicaidMI
1101120021OtherMIBLUE CROSS
110089873OtherMIRAILROAD MEDICARE
2427250OtherMICIGNA
27-0381199OtherMIGROUP TAX ID

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 4301407295 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lakeland Hospital, St JosephSt joseph, MIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Lakeland Medical Practices1658427042260

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. Dr Mark S Harrison allows following entities to bill medicare on his behalf.
Entity NameIntercare Community Health Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326058512
PECOS PAC ID: 9537061254
Enrollment ID: O20040223000150
Entity NameLakeland Medical Practices
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538397120
PECOS PAC ID: 1658427042
Enrollment ID: O20090928000216

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. Dr Mark S Harrison 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
Dr Mark S Harrison, MD
31 N Saint Joseph Ave,
Niles, MI 49120-2207

Ph: (269) 982-4862
Dr Mark S Harrison, MD
1234 Napier Ave,
Saint Joseph, MI 49085-2112

Ph: (269) 471-1700

Reviews and Comments


Internal Medicine Doctors in Saint Joseph, MI

Hany S Mesiha, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1234 Napier Ave, Saint Joseph, MI 49085
Phone: 269-983-8300    
Thomas Ryan Birris, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3903 Hollywood Rd, Saint Joseph, MI 49085
Phone: 269-408-1100    
Kimberlee Ann Tomerlin, D.O.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3950 Hollywood Rd Ste 100, Saint Joseph, MI 49085
Phone: 269-429-8010    
Dr. Muhammad M. Abdel Migeed, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3950 Hollywood Rd Ste 110, Saint Joseph, MI 49085
Phone: 269-985-1000    
Penny Rathburn, DO
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1234 Napier Ave, Saint Joseph, MI 49085
Phone: 269-985-4632    
Dr. Robert M Allen, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1234 Napier Ave, Saint Joseph, MI 49085
Phone: 269-471-7741    Fax: 269-471-1581
Michael Scott Morris,
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1234 Napier Ave, Saint Joseph, MI 49085
Phone: 269-982-4862    Fax: 269-985-4523

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.