Mark J Thomson, DO - Medicare Emergency Medicine in Grand Rapids, MI

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Mark J Thomson, DO is a medicare enrolled "Emergency Medicine" physician in Grand Rapids, Michigan. He went to Michigan State University College Of Osteopathic Medicine and graduated in 2017 and has 7 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Caberfae Emergency Group Pc, Ecs Lakeshore Pc, Ecs Western Michigan Pc and his current practice location is 100 Michigan St Ne, Grand Rapids, Michigan. You can reach out to his office (for appointments etc.) via phone at (616) 391-7130.

Mark J Thomson is licensed to practice in Michigan (license number 5101024882) 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 1598286551.

Contact Information

Mark J Thomson, DO
100 Michigan St Ne,
Grand Rapids, MI 49503-2560
(616) 391-7130
Not Available

Map and Direction




Physician's Profile

Full NameMark J Thomson
GenderMale
SpecialityEmergency Medicine
Experience7 Years
Location100 Michigan St Ne, Grand Rapids, 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:
  • Mark J Thomson attended and graduated from Michigan State University College Of Osteopathic Medicine in 2017
  NPI Data:
  • NPI Number: 1598286551
  • Provider Enumeration Date: 06/29/2017
  • Last Update Date: 11/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9638405798
  • Enrollment ID: I20190726000830

Medical Identifiers

Medical identifiers for Mark J Thomson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598286551NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 5101024882 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Spectrum Health Ludington HospitalLudington, MIHospital
Munson Healthcare Manistee HospitalManistee, MIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Caberfae Emergency Group Pc408206923238
Ecs Lakeshore Pc408296403616
Ecs Western Michigan Pc8628327384185

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. Mark J Thomson allows following entities to bill medicare on his behalf.
Entity NameEmergency Health Partners Grand Haven, Plc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700950953
PECOS PAC ID: 6305834433
Enrollment ID: O20040505001320
Entity NamePere Marquette Emergency Physicians Plc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447284112
PECOS PAC ID: 1052356094
Enrollment ID: O20050621000913
Entity NameVisionary Medical Services, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538216569
PECOS PAC ID: 1951404185
Enrollment ID: O20070308000475
Entity NameLake Michigan Emergency Specialists, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124574520
PECOS PAC ID: 0749569242
Enrollment ID: O20161123001655
Entity NameEcs Western Michigan Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992281000
PECOS PAC ID: 8628327384
Enrollment ID: O20180814003001
Entity NameEcs Lakeshore Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477030476
PECOS PAC ID: 4082964036
Enrollment ID: O20180912002039
Entity NameMercy Health Urgent Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396331328
PECOS PAC ID: 0840603155
Enrollment ID: O20210105003318
Entity NameCaberfae Emergency Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447932504
PECOS PAC ID: 4082069232
Enrollment ID: O20231009002608

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. Mark J Thomson 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
Mark J Thomson, DO
1675 Leahy St Ste 315a,
Muskegon, MI 49442-5543

Ph: (231) 727-5244		Mark J Thomson, DO
100 Michigan St Ne,
Grand Rapids, MI 49503-2560

Ph: (616) 391-7130

Reviews and Comments


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Dr. Adam Michael Anderson, MD
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Mark G Kanitz, MD
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Steven Perry, DO
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Colleen M Bush, MD
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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.