IndividualActive
John Siller, MA LLP
NPI 1689097677 · Clinical Psychologist · Pontiac, MI
John Siller, MA LLP is a Clinical Psychologist provider in Pontiac, MI (NPI 1689097677).
Provider details
- NPI number
- 1689097677
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- MA LLP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6301005323 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(76/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
35 W Huron St
Suite 10 South
Pontiac, MI 48342-2120
Phone: (248) 335-0632
Fax: (248) 335-1067
Street-level locationGet directions
Mailing address
882 Oakman Blvd
Detroit, MI 48238-3710
Registry dates
- Enumerated
- 2014-01-27
- Last updated
- 2014-01-27
Frequently asked questions
- What is John Siller's NPI number?
- John Siller's National Provider Identifier (NPI) is 1689097677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Siller's specialty?
- John Siller is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Siller located?
- John Siller's practice location on file with NPPES is 35 W Huron St, Pontiac, MI 48342-2120.
- What is John Siller's phone number?
- The practice phone number listed in the NPPES registry for John Siller is (248) 335-0632.
- Is John Siller's NPI active?
- Yes — John Siller's NPI (1689097677) is active in the NPPES registry as of the last update on 2014-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.