What is Mark Thomas's NPI number?

Mark Thomas's National Provider Identifier (NPI) is 1841164555, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Thomas's specialty?

Mark Thomas is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Mark Thomas located?

Mark Thomas's practice location on file with NPPES is 100 Hawkins Dr, Iowa City, IA 52242-1032.

What is Mark Thomas's phone number?

The practice phone number listed in the NPPES registry for Mark Thomas is (319) 384-9393.

Is Mark Thomas's NPI active?

Yes — Mark Thomas's NPI (1841164555) is active in the NPPES registry as of the last update on 2025-10-24.

IndividualActive

Mark Thomas, PHD

NPI 1841164555 · Psychologist · Iowa City, IA

Mark Thomas, PHD is a Psychologist provider in Iowa City, IA (NPI 1841164555).

Provider details

NPI number: 1841164555
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PHD
Sex: Male
Sole proprietor: No
License: 0070 (IA)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 0070 (IA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

100 Hawkins Dr

Iowa City, IA 52242-1032

Phone: (319) 384-9393

Street-level locationGet directions

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Mailing address