Dr. Geoffrey Grambau M.D.
About this NPIWhat this record shows.
NPI 1144324633 is registered to Dr. Geoffrey Grambau M.D., a Pulmonary Disease Physician practising at 601 John St, Suite M-401 in Kalamazoo, Michigan. Pulmonary Disease Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Geoffrey Grambau M.D. has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 1386427MI
Other
- 4809117· Issued by PHP
- 290C96034MI· Issued by BC/BS OF MICHIGAN
- 290C913410· Issued by BCBS GRP PIN
- 290009377MI· Issued by RAILROAD MEDICARE
- 290394238· Issued by BCBS IND PIN
- 4379439· Issued by AETNA
- 4830052MI· Issued by PHP
- P64591MI· Issued by BLUECARE NETWORK
- 114393· Issued by GRT LKS HLTH PLAN
- 382356205107MI· Issued by COMMUNITY CHOICE OF MICH
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20040603001334Pulmonary DiseaseMI
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Geoffrey Grambau M.D. accepts. To confirm in-network status with your specific health plan, contact Dr. Geoffrey Grambau M.D. directly at (269) 388-5864.
Frequently asked
Yes. NPI 1144324633 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pulmonary Disease Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (269) 388-5864.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Geoffrey Grambau M.D. is a Type-1 individual NPI.