GREGORY O SIMONSEN (PH.D.) – Counseling Psychologist, NPI 1356306690

GREGORY O SIMONSEN (PH.D.) is a healthcare provider. based in Dallas, Texas. specializing in CLINICAL PSYCHOLOGIST. They hold the professional credentials PH.D.. They hold a License No. 31146 (TX). The NPI Number for GREGORY O SIMONSEN (PH.D.) is 1356306690

Main info

Male
28 Years Of Experience
Accepts Medicare Assignment
Name
GREGORY O SIMONSEN (PH.D.)
NPI
1356306690
Phone
(214) 443-7808
Address
3811 TURTLE CREEK BLVD.
Enumeration Date
19 April 2006
Last Update Date
18 April 2013

Doctor Profile

Medical School Name
OTHER
Secondary Phone
2147550552
Graduation Year
1998 (28 years ago)
PAC ID
2062466626
Professional Enrollment ID
I20050307000211
Address ID
TX750625794IR2607XCIRX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,347 CLINICAL PSYCHOLOGIST in TX

Provider Addresses for GREGORY O SIMONSEN (PH.D.)

  • 3811 TURTLE CREEK BLVD.

    SUITE 305

    DALLAS, TX 752194542

    Phone: (214) 443-7808

    Fax: (214) 443-7807

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-03-07

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20050307000211IClinical PsychologistTXTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 75219)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

What unique ID ties claims to GREGORY O SIMONSEN (PH.D.)?
NPI 1356306690 is assigned to GREGORY O SIMONSEN (PH.D.) under the national enumeration system.
Is GREGORY O SIMONSEN (PH.D.) active in the national directory?
GREGORY O SIMONSEN (PH.D.)'s public NPI profile is in an active state.
Does GREGORY O SIMONSEN (PH.D.) list a primary specialty?
If you are matching referrals, note Counseling Psychologist for GREGORY O SIMONSEN (PH.D.). Clinical services aligned with this taxonomy classification.
Where is GREGORY O SIMONSEN (PH.D.)'s primary listing?
We display Dallas, Texas because that is what the record indicates for GREGORY O SIMONSEN (PH.D.).
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

Similar Providers

Prism Health North Texas

Family Medicine Physician
4922, Spring Avenue, Dallas, TX, Dallas, Dallas County, Texas, 75210, United States
NPI: 1609852813

DR. DAVID BRIAN DERR (PH.D.)

Counseling Psychologist
8500 N STEMMONS FWY STE 5040
NPI: 1700832938

DELANE RAYE KINNEY (PHD)

Counseling Psychologist
106, East 10th Street, Bishop Arts District, Dallas, TX, Dallas, Dallas County, Texas, 75203, United States
NPI: 1366489726
PO BOX 703772
NPI: 1982638284

DR. DAVID R BLACKBURN (PH.D.)

Counseling Psychologist
Band Box Place, Dallas, Dallas County, Texas, 75244, United States
NPI: 1184647646

DR. HEIDI JEAN KOEHLER (PH.D.)

Counseling Psychologist
NORTH TEXAS HEALTH CARE SYSTEM
NPI: 1790798577

DR. JEFF DERSH (PH.D.)

Counseling Psychologist
Maple Avenue, Dallas, Dallas County, Texas, 75390, United States
NPI: 1306950134

DR. DEBORAH SUE BOELTER (PHD)

Counseling Psychologist
15400, Knoll Trail Drive, Dallas, Dallas County, Texas, 75254, United States
NPI: 1013028299