Henry Koon, MD
NPI 1811929334 · Hematology & Oncology Physician · Cleveland, OH
Henry Koon, MD is a Hematology & Oncology Physician provider in Cleveland, OH (NPI 1811929334).
Provider details
- NPI number
- 1811929334
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 154133 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2009-01-23
Frequently asked questions
- What is Henry Koon's NPI number?
- Henry Koon's National Provider Identifier (NPI) is 1811929334, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Henry Koon's specialty?
- Henry Koon is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Henry Koon located?
- Henry Koon's practice location on file with NPPES is 11100 Euclid Avenue, Cleveland, OH 44106.
- What is Henry Koon's phone number?
- The practice phone number listed in the NPPES registry for Henry Koon is (216) 844-3951.
- Is Henry Koon's NPI active?
- Yes — Henry Koon's NPI (1811929334) is active in the NPPES registry as of the last update on 2009-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.