William Cullen, M.D.
NPI 1790701662 · Addiction (Substance Use Disorder) Counselor · Massillon, OH
William Cullen, M.D. is a Addiction (Substance Use Disorder) Counselor provider in Massillon, OH (NPI 1790701662).
Provider details
- NPI number
- 1790701662
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35-05-6037-C (OH)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2006-07-14
- Last updated
- 2022-07-14
- Certified
- 2022-07-14
Frequently asked questions
- What is William Cullen's NPI number?
- William Cullen's National Provider Identifier (NPI) is 1790701662, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Cullen's specialty?
- William Cullen is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is William Cullen located?
- William Cullen's practice location on file with NPPES is 875 8th St Ne, Massillon, OH 44646-8503.
- What is William Cullen's phone number?
- The practice phone number listed in the NPPES registry for William Cullen is (419) 289-0491.
- Is William Cullen's NPI active?
- Yes — William Cullen's NPI (1790701662) is active in the NPPES registry as of the last update on 2022-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.