Dr Geoffrey Riches Grambau, MD - Medicare Internal Medicine in Kalamazoo, MI

Dr Geoffrey Riches Grambau, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Kalamazoo, Michigan. His current practice location is 601 John St, Suite M-401, Kalamazoo, Michigan. You can reach out to his office (for appointments etc.) via phone at (269) 388-5864.

Dr Geoffrey Riches Grambau is licensed to practice in Michigan (license number GG035172) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1144324633.

Contact Information

Dr Geoffrey Riches Grambau, MD
601 John St, Suite M-401,
Kalamazoo, MI 49007-5342
(269) 388-5864
(269) 388-5211



Physician's Profile

Full NameDr Geoffrey Riches Grambau
GenderMale
SpecialityInternal Medicine - Pulmonary Disease
Location601 John St, Kalamazoo, Michigan
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1144324633
  • Provider Enumeration Date: 09/12/2006
  • Last Update Date: 11/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6709867815
  • Enrollment ID: I20040603001334

Medical Identifiers

Medical identifiers for Dr Geoffrey Riches Grambau such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144324633NPI-NPPES
1386427MedicaidMI
4809117OtherPHP
290C96034OtherMIBC/BS OF MICHIGAN
290C913410OtherBCBS GRP PIN
290009377OtherMIRAILROAD MEDICARE
290394238OtherBCBS IND PIN
4379439OtherAETNA
4830052OtherMIPHP
P64591OtherMIBLUECARE NETWORK
114393OtherGRT LKS HLTH PLAN
382356205107OtherMICOMMUNITY CHOICE OF MICH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease GG035172 (Michigan)Primary

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 Geoffrey Riches Grambau allows following entities to bill medicare on his behalf.
Entity NameBronson Methodist Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417961137
PECOS PAC ID: 0244148633
Enrollment ID: O20031208000832

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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 Geoffrey Riches Grambau 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 Geoffrey Riches Grambau, MD
601 John St, Suite M401,
Kalamazoo, MI 49007-5341

Ph: (269) 388-5864
Dr Geoffrey Riches Grambau, MD
601 John St, Suite M-401,
Kalamazoo, MI 49007-5342

Ph: (269) 388-5864

News Archive

Electronic cigarettes produce stress response in neural stem cells, study finds

A research team at the University of California, Riverside, has found that electronic cigarettes, often targeted to youth and pregnant women, produce a stress response in neural stem cells, which are critical cells in the brain.

New QCovid tool helps identify vaccinated groups at highest risk of Covid-19 hospitalization and death

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Read more News

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Internal Medicine Doctors in Kalamazoo, MI

Dr. Eric S Shay, M.D.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 601 John St, Suite M-170, Kalamazoo, MI 49007
Phone: 269-381-5060    Fax: 269-381-1655
Michael Trexler,
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1521 Gull Rd, Suite 173, Kalamazoo, MI 49048
Phone: 269-226-5165    
Dr. Christopher Rogers, D.O.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 601 John St, Ste 100, Kalamazoo, MI 49007
Phone: 269-373-1222    Fax: 269-373-6270
Desmonda Brady Wixson, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 4613 W Main St Ste A, Kalamazoo, MI 49006
Phone: 269-488-8672    Fax: 269-488-8673
Dr. Kevin L. Beyer, D.O.
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1535 Gull Rd, Suite 105, Kalamazoo, MI 49048
Phone: 269-385-9900    Fax: 269-385-2140
Ernest Lee Yoder, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1000 Oakland Dr, Kalamazoo, MI 49008
Phone: 269-337-6300    
Valerie Siqueira Duhn, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 521 E. Michigan Ave, Ste 201, Kalamazoo, MI 49007
Phone: 269-349-6759    Fax: 369-349-7450

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