Donald Johnson
NPI 1033645577 · Family Nurse Practitioner · Smithtown, NY
Donald Johnson is a Family Nurse Practitioner provider in Smithtown, NY (NPI 1033645577).
Provider details
- NPI number
- 1033645577
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- F340365 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2017-05-03
- Last updated
- 2017-05-03
Frequently asked questions
- What is Donald Johnson's NPI number?
- Donald Johnson's National Provider Identifier (NPI) is 1033645577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Johnson's specialty?
- Donald Johnson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Donald Johnson located?
- Donald Johnson's practice location on file with NPPES is 50 New York Ave # 25a, Smithtown, NY 11787-3448.
- What is Donald Johnson's phone number?
- The practice phone number listed in the NPPES registry for Donald Johnson is (631) 862-3000.
- Is Donald Johnson's NPI active?
- Yes — Donald Johnson's NPI (1033645577) is active in the NPPES registry as of the last update on 2017-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.