Donald Johann, MD
NPI 1477731263 · Hematology & Oncology Physician · Little Rock, AR
Donald Johann, MD is a Hematology & Oncology Physician provider in Little Rock, AR (NPI 1477731263).
Provider details
- NPI number
- 1477731263
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 205886 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-02-05
- Last updated
- 2014-09-04
Frequently asked questions
- What is Donald Johann's NPI number?
- Donald Johann's National Provider Identifier (NPI) is 1477731263, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Johann's specialty?
- Donald Johann is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Johann located?
- Donald Johann's practice location on file with NPPES is 4301 W Markham St # 783, Little Rock, AR 72205-7101.
- What is Donald Johann's phone number?
- The practice phone number listed in the NPPES registry for Donald Johann is (501) 686-8000.
- Is Donald Johann's NPI active?
- Yes — Donald Johann's NPI (1477731263) is active in the NPPES registry as of the last update on 2014-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.