DR. MARK THEODORE SIMPSON PH.D.
NPI 1285757013
Psychologist - Clinical in Johnson City, TN

Q: What is Mark Simpson's NPI number?

The NPI number for Mark Simpson is 1285757013. It was assigned to this individual provider in the NPPES registry on April 8, 2007.

Q: What is Mark Simpson's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Mark Simpson was last updated on June 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 08, 2007

119 BOONE RIDGE DR, SUITE 201, JOHNSON CITY, TN 37615(865) 673-6741(865) 673-6634 Get Directions Write a Review

NPPES record last updated: June 25, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Mark Theodore Simpson Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK THEODORE SIMPSON PH.D. (NPI 1285757013) is an individual clinical provider in Johnson City, Tennessee, licensed in Tennessee (3205) and active in the NPI registry since April 2007. He maintains a secondary practice location in Johnson City.

NPPES Registry Identity

NPI1285757013

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. MARK THEODORE SIMPSONCredential: PH.D.

Location Address119 BOONE RIDGE DR, SUITE 201Johnson City, TN 37615

Mailing Address310 25th Ave N Ste 204Nashville, TN 37203-2492 · (615) 385-4090 · Fax (615) 385-0138

Phone(865) 673-6741

Fax(865) 673-6634

Sole ProprietorNo

Enumeration DateApril 8, 2007

Last NPPES UpdateJune 25, 2018

✔ NPI 1285757013 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in TN · 3205

Definition

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 specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

119 BOONE RIDGE DR, Johnson City, TN 37615

Open in Google Maps ↗

Secondary Practice Location 1

Location 1119 Boone Ridge Dr, Suite 201Johnson City, TN 37615-4998 · Phone (865) 673-6741 · Fax (865) 673-6634

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMBER RAMSEY FNP-BC

Nurse Practitioner (Family)

119 BOONE RIDGE DR, SUITE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

MRS. CARLEEN MARIE OGLE FNP

Nurse Practitioner (Family)

119 BOONE RIDGE DR, SUITE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

DR. CLAUDIA CORINA COX MD

Internal Medicine

119 BOONE RIDGE DR, SUITE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

CLAIRE D PARIS M.D.

Hospitalist

119 BOONE RIDGE DR, SUITE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

DR. MICHAEL ALLEN KEITH O.D.

Optometrist

119 BOONE RIDGE DR, SUITE 101
JOHNSON CITY, TN 37615

Washington County (423) 283-7300

AMY HAMILTON FNP-C

Nurse Practitioner (Family)

119 BOONE RIDGE DR, STE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

COURTNEY D CONKIN FNP

Nurse Practitioner (Family)

119 BOONE RIDGE DR, SUITE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

LINDSEY TOWNSEND ELSWICK FNP

Nurse Practitioner (Family)

119 BOONE RIDGE DR, SUITE 201
JOHNSON CITY, TN 37615

Washington County (423) 282-1480

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Simpson's NPI number?

The NPI number for Mark Simpson is 1285757013. It was assigned to this individual provider in the NPPES registry on April 8, 2007.

Where is Mark Simpson located?

Mark Simpson practices at 119 Boone Ridge Dr Suite 201, Johnson City, TN 37615. The listed phone number is (865) 673-6741.

What is Mark Simpson's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mark Simpson was last updated on June 25, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.