Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology
NPI 1114962644 · Hematology & Oncology Physician · Kalamazoo, MI
Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology is a Hematology & Oncology Physician organization in Kalamazoo, MI (NPI 1114962644).
Provider details
- NPI number
- 1114962644
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jeffrey Letzer, Owner(269) 341-9200
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Hematology & Oncology Physician207RH0003X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Kalamazoo Hematology & Oncology
Registry dates
- Enumerated
- 2006-06-18
- Last updated
- 2010-02-08
Frequently asked questions
- What is Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's NPI number?
- Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's National Provider Identifier (NPI) is 1114962644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology?
- Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology located?
- Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's practice location on file with NPPES is 1634 Gull Rd, Kalamazoo, MI 49048.
- What is Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology is (269) 341-9200.
- Who is the authorized official for Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology?
- The authorized official listed on Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's NPPES record is Jeffrey Letzer, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's NPI active?
- Yes — Jeffrey P. Letzer, DO, PLC. Dba Kalamazoo Hematology & Oncology's NPI (1114962644) is active in the NPPES registry as of the last update on 2010-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.