Gregory Simonsen, PH.D.
NPI 1356306690 · Counseling Psychologist · Dallas, TX
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Simonsen, PH.D. is a Counseling Psychologist provider in Dallas, TX (NPI 1356306690).
Provider details
- NPI number
- 1356306690
- Entity type
- Individual
- Primary specialty
- Counseling PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 31146 (TX)
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
20 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
- 2006-04-19
- Last updated
- 2013-04-18
Frequently asked questions
- What is Gregory Simonsen's NPI number?
- Gregory Simonsen's National Provider Identifier (NPI) is 1356306690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Simonsen's specialty?
- Gregory Simonsen is listed in the NPPES registry with a primary specialty of Counseling Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Simonsen located?
- Gregory Simonsen's practice location on file with NPPES is 3811 Turtle Creek Blvd., Dallas, TX 75219-4542.
- What is Gregory Simonsen's phone number?
- The practice phone number listed in the NPPES registry for Gregory Simonsen is (214) 443-7808.
- Does Gregory Simonsen accept Medicare?
- Gregory Simonsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Simonsen's NPI active?
- Yes — Gregory Simonsen's NPI (1356306690) is active in the NPPES registry as of the last update on 2013-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.