William Harshman, PH.D, LMSW, LLP, CAC
NPI 1821106675 · Clinical Psychologist · Grand Blanc, MI
William Harshman, PH.D, LMSW, LLP, CAC is a Clinical Psychologist provider in Grand Blanc, MI (NPI 1821106675).
Provider details
- NPI number
- 1821106675
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D, LMSW, LLP, CAC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6401007572 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
- 2006-08-29
- Last updated
- 2025-09-11
Frequently asked questions
- What is William Harshman's NPI number?
- William Harshman's National Provider Identifier (NPI) is 1821106675, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Harshman's specialty?
- William Harshman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Harshman located?
- William Harshman's practice location on file with NPPES is 10785 S Saginaw St, Grand Blanc, MI 48439-7003.
- What is William Harshman's phone number?
- The practice phone number listed in the NPPES registry for William Harshman is (810) 695-0055.
- Is William Harshman's NPI active?
- Yes — William Harshman's NPI (1821106675) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.