Joanna Grisham, PH.D.
NPI 1427277441 · Clinical Psychologist · Roswell, GA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Grisham, PH.D. is a Clinical Psychologist provider in Roswell, GA (NPI 1427277441).
Provider details
- NPI number
- 1427277441
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1449 (GA)
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
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
Mailing address
Registry dates
- Enumerated
- 2007-04-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joanna Grisham's NPI number?
- Joanna Grisham's National Provider Identifier (NPI) is 1427277441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Grisham's specialty?
- Joanna Grisham is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Joanna Grisham located?
- Joanna Grisham's practice location on file with NPPES is 1180 Grimes Bridge Rd, Roswell, GA 30075-3986.
- What is Joanna Grisham's phone number?
- The practice phone number listed in the NPPES registry for Joanna Grisham is (770) 645-5650.
- Does Joanna Grisham accept Medicare?
- Joanna Grisham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Grisham's NPI active?
- Yes — Joanna Grisham's NPI (1427277441) 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.