James Knowles PH.D., P.C.
NPI 1164611059 · Clinical Psychologist · Lambertville, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Knowles PH.D., P.C. is a Clinical Psychologist organization in Lambertville, MI (NPI 1164611059).
Provider details
- NPI number
- 1164611059
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- James Knowles, Clinical Psychologist(734) 347-8002
- License
- 6301009946 (MI)
Specialties & taxonomies
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
18 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
- 2007-10-17
- Last updated
- 2010-07-08
Frequently asked questions
- What is James Knowles PH.D., P.C.'s NPI number?
- James Knowles PH.D., P.C.'s National Provider Identifier (NPI) is 1164611059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is James Knowles PH.D., P.C.?
- James Knowles PH.D., P.C. is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is James Knowles PH.D., P.C. located?
- James Knowles PH.D., P.C.'s practice location on file with NPPES is 7581 Secor Rd, Lambertville, MI 48144-9624.
- What is James Knowles PH.D., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for James Knowles PH.D., P.C. is (734) 347-8002.
- Does James Knowles PH.D., P.C. accept Medicare?
- James Knowles PH.D., P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for James Knowles PH.D., P.C.?
- The authorized official listed on James Knowles PH.D., P.C.'s NPPES record is James Knowles, Clinical Psychologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is James Knowles PH.D., P.C.'s NPI active?
- Yes — James Knowles PH.D., P.C.'s NPI (1164611059) is active in the NPPES registry as of the last update on 2010-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.