Alex M Geiger, MD, MPH - Medicare Internal Medicine in Grand Rapids, MI

Alex M Geiger, MD, MPH is a medicare enrolled "Internal Medicine" physician in Grand Rapids, Michigan. He went to University Of Arizona College Of Medicine and graduated in 2018 and has 8 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Chase Brexton Health Services Inc, Healthnet Inc, Chase Brexton Health Services Inc and his current practice location is 275 Michigan St Ne, Grand Rapids, Michigan. You can reach out to his office (for appointments etc.) via phone at (616) 391-3777.

Alex M Geiger is licensed to practice in Michigan (license number 4301517885) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1124530316.

Contact Information

Alex M Geiger, MD, MPH
275 Michigan St Ne,
Grand Rapids, MI 49503-2531
(616) 391-3777
Not Available

Map and Direction




Physician's Profile

Full NameAlex M Geiger
GenderMale
SpecialityInternal Medicine
Experience8 Years
Location275 Michigan St Ne, Grand Rapids, Michigan
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Alex M Geiger attended and graduated from University Of Arizona College Of Medicine in 2018
  NPI Data:
  • NPI Number: 1124530316
  • Provider Enumeration Date: 10/29/2017
  • Last Update Date: 08/17/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 5991050940
  • Enrollment ID: I20250723002041

Medical Identifiers

Medical identifiers for Alex M Geiger such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124530316NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 4301517885 (Michigan)Primary
208000000XPediatrics 4301517885 (Michigan)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Chase Brexton Health Services Inc5395644835119
Healthnet Inc721484093377
Chase Brexton Health Services Inc5395644835119

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. Alex M Geiger allows following entities to bill medicare on his behalf.
Entity NameChase Brexton Health Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588606305
PECOS PAC ID: 5395644835
Enrollment ID: O20040512000520

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. Alex M Geiger 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
Alex M Geiger, MD, MPH
100 Michigan St Ne, Mc 845,
Grand Rapids, MI 49503-2560

Ph: Not Available
Alex M Geiger, MD, MPH
275 Michigan St Ne,
Grand Rapids, MI 49503-2531

Ph: (616) 391-3777

Reviews and Comments


Internal Medicine Doctors in Grand Rapids, MI

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Aline De Quadros Teixeira, MD
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Phone: 616-391-3139    

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).

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