IndividualActive
Harold Quillian, PSY. D.
NPI 1659589349 · Clinical Psychologist · Roswell, GA
Harold Quillian, PSY. D. is a Clinical Psychologist provider in Roswell, GA (NPI 1659589349).
Provider details
- NPI number
- 1659589349
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY. D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY002304 (GA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
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
1175 Canton St
Suite Two
Roswell, GA 30075-3616
Phone: (770) 594-0700
Approximate (ZIP-level) locationGet directions
Mailing address
400 La View Ct
Roswell, GA 30075-4670
Registry dates
- Enumerated
- 2007-05-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Harold Quillian's NPI number?
- Harold Quillian's National Provider Identifier (NPI) is 1659589349, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Quillian's specialty?
- Harold Quillian is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Harold Quillian located?
- Harold Quillian's practice location on file with NPPES is 1175 Canton St, Roswell, GA 30075-3616.
- What is Harold Quillian's phone number?
- The practice phone number listed in the NPPES registry for Harold Quillian is (770) 594-0700.
- Is Harold Quillian's NPI active?
- Yes — Harold Quillian's NPI (1659589349) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.