Dr Mark Douglas Ensberg, MD - Medicare Internal Medicine in Holt, MI

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Dr Mark Douglas Ensberg, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Holt, Michigan. He went to Sanford School Of Medicine Of University Of South Dakota and graduated in 1981 and has 43 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Msu Health Care Inc. and his current practice location is 5091 Willoughby Rd, Holt, Michigan. You can reach out to his office (for appointments etc.) via phone at (517) 694-2144.

Dr Mark Douglas Ensberg is licensed to practice in Michigan (license number 4301048610) 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 1912936527.

Contact Information

Dr Mark Douglas Ensberg, MD
5091 Willoughby Rd,
Holt, MI 48842-1054
(517) 694-2144
(517) 694-6570

Map and Direction




Physician's Profile

Full NameDr Mark Douglas Ensberg
GenderMale
SpecialityInternal Medicine
Experience43 Years
Location5091 Willoughby Rd, Holt, 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 Douglas Ensberg attended and graduated from Sanford School Of Medicine Of University Of South Dakota in 1981
  NPI Data:
  • NPI Number: 1912936527
  • Provider Enumeration Date: 07/03/2006
  • Last Update Date: 06/12/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 2264449172
  • Enrollment ID: I20060320000007

Medical Identifiers

Medical identifiers for Dr Mark Douglas Ensberg such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912936527NPI-NPPES
2655771MedicaidMI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 4301048610 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Edward W Sparrow HospitalLansing, MIHospital
Holt Senior Care And Rehab Center, L L CHolt, MINursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Msu Health Care Inc.8628404936204

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 Douglas Ensberg allows following entities to bill medicare on his behalf.
Entity NameMichigan State University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861443269
PECOS PAC ID: 3870405954
Enrollment ID: O20031105000741
Entity NameMsu Health Care Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700418670
PECOS PAC ID: 8628404936
Enrollment ID: O20200518002744

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 Douglas Ensberg 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 Douglas Ensberg, MD
804 Service Rd Ste A109b,
East Lansing, MI 48824-7015

Ph: () -		Dr Mark Douglas Ensberg, MD
5091 Willoughby Rd,
Holt, MI 48842-1054

Ph: (517) 694-2144

Reviews and Comments


Internal Medicine Doctors in Holt, MI


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.