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Mark Stillman, PH.D.
NPI 1982948154 · Clinical Psychologist · Atlanta, GA
Mark Stillman, PH.D. is a Clinical Psychologist provider in Atlanta, GA (NPI 1982948154).
Provider details
- NPI number
- 1982948154
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY003631 (GA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(79/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
4274 Peachtree Rd Ne
Suite 203
Atlanta, GA 30319-3015
Phone: (678) 805-7238
Street-level locationGet directions
Mailing address
4274 Peachtree Rd Ne
Atlanta, GA 30319-3015
Registry dates
- Enumerated
- 2012-11-12
- Last updated
- 2013-07-18
Frequently asked questions
- What is Mark Stillman's NPI number?
- Mark Stillman's National Provider Identifier (NPI) is 1982948154, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stillman's specialty?
- Mark Stillman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mark Stillman located?
- Mark Stillman's practice location on file with NPPES is 4274 Peachtree Rd Ne, Atlanta, GA 30319-3015.
- What is Mark Stillman's phone number?
- The practice phone number listed in the NPPES registry for Mark Stillman is (678) 805-7238.
- Is Mark Stillman's NPI active?
- Yes — Mark Stillman's NPI (1982948154) is active in the NPPES registry as of the last update on 2013-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.