Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Alexander Steven Thomas, MD

Addiction Medicine (Psychiatry & Neurology) Physician in Indianapolis, IN · enumerated 2019 · practices at Midtown Community Mental Health Clinic.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1083272645

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Alexander Steven Thomas

Credential MD

Sex Male

Practice address Indianapolis, IN, 46208

Phone (317) 941-5003

Fax (317) 931-5140

Enumeration date May 30, 2019

Last updated in NPPES Apr 24, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 01086577A (IN) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084A0401X Addiction Medicine (Psychiatry & Neurology) Physician Allopathic & Osteopathic Physicians · License 01086577A (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Alexander Thomas practice?

The practice location on file with NPPES is in Indianapolis, IN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alexander Thomas?

The National Provider Identifier (NPI) for Alexander Thomas is 1083272645, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-24.