P Praxis·MD
● Active Type 1 · Individual

DR. Harold David Quillian, PSY. D.

Psychologist·Roswell, GA· NPI 1659589349 · Enumerated 2007 · 19 years on NPI
Quillian is 1 of 34 psychologist providers in Roswell and 1 of 1487 in Georgia.
NPI age
19 years
Enumerated 2007-05-18
Primary specialty
Psychologist
Licensed in
GA
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-07-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file

How this provider compares

Across 1487 active psychologist providers in Georgia.

NPI age
19 years
↑ 2 yr above median (17 yr)
State licenses
1 state
6% of peers hold multiple states
Subspecialties
0
18% of peers hold subspecialties

NPI lifetime · 2007 → 2026

2007-05Enumerated in NPPES
2007 2026

Where they practice

Practice location
1175 Canton St, Suite Two
Roswell, GA 300753616
📞 7705940700
Mailing address
400 La View Ct
Roswell, GA 300754670
📞 7709939042

Specialties

  • Psychologist Primary
    A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a...
    GA license #PSY002304 taxonomy 103TC0700X

Identifiers

TypeValueNotes
05 (GA) 00829705A

Practice context

Part of a multi-provider practice. 5 other active providers share this practice address in NPPES.

Recently enumerated nearby: 1 new psychologist provider has been added in Roswell in the last 180 days. See all →
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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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