Joan Johnston, DNP
NPI 1023541943 · Nurse Practitioner · Worcester, MA
Joan Johnston, DNP is a Nurse Practitioner provider in Worcester, MA (NPI 1023541943).
Provider details
- NPI number
- 1023541943
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN2258844 (MA)
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
- 2017-04-07
- Last updated
- 2017-04-07
Frequently asked questions
- What is Joan Johnston's NPI number?
- Joan Johnston's National Provider Identifier (NPI) is 1023541943, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Johnston's specialty?
- Joan Johnston is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joan Johnston located?
- Joan Johnston's practice location on file with NPPES is 123 Summer St, Worcester, MA 01608-1216.
- What is Joan Johnston's phone number?
- The practice phone number listed in the NPPES registry for Joan Johnston is (508) 363-5000.
- Is Joan Johnston's NPI active?
- Yes — Joan Johnston's NPI (1023541943) is active in the NPPES registry as of the last update on 2017-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.