Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jeffrey P. Letzer, Do, Plc. Dba Kalamazoo Hematology & Oncology

Hematology & Oncology Physician in Kalamazoo, MI · enumerated 2006 · authorized official Jeffrey Letzer, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1114962644

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Jeffrey P. Letzer, Do, Plc. Dba Kalamazoo Hematology & Oncology

Other name <Unavail>

Practice address 1634 Gull Rd, Suite 103, Kalamazoo, MI, 49048

Phone (269) 341-9200

Fax (269) 341-4197

Enumeration date Jun 18, 2006

Last updated in NPPES Feb 8, 2010

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License JL010182 (MI) Primary

Authorized official

Name Jeffrey Letzer

Title Owner

Phone (269) 341-9200

Other identifiers

Identifier	Type	State	Issuer
01008954	Other	MI	HEALTHPLUS OF MICHIGAN
053	Other	MI	CARE SOURCE MEDICAID HMO
0N89040	Other	MI	MEDICARE PLUS BLUE MICHIGAN
110C912010	Other	MI	BLUE CROSS BLUE SHIELD OF MICHIGAN
4290016	Medicaid	MI	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Jeffrey P. Letzer, Do, Plc. Dba Kalamazoo Hematology & Oncology located?

The practice location on file with NPPES is in Kalamazoo, MI.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-02-08. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-08.