John Massie
NPI 1750066197 · Addiction (Substance Use Disorder) Registered Nurse · Mansfield, OH
John Massie is a Addiction (Substance Use Disorder) Registered Nurse provider in Mansfield, OH (NPI 1750066197).
Provider details
- NPI number
- 1750066197
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- RN.507825 (OH)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2023-06-21
- Last updated
- 2023-06-21
- Certified
- 2023-06-21
Frequently asked questions
- What is John Massie's NPI number?
- John Massie's National Provider Identifier (NPI) is 1750066197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Massie's specialty?
- John Massie is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Registered Nurse (Nursing Service Providers).
- Where is John Massie located?
- John Massie's practice location on file with NPPES is 741 Scholl Rd, Mansfield, OH 44907-1587.
- What is John Massie's phone number?
- The practice phone number listed in the NPPES registry for John Massie is (419) 756-1717.
- Is John Massie's NPI active?
- Yes — John Massie's NPI (1750066197) is active in the NPPES registry as of the last update on 2023-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.