Doctor profile · Federal record

Dr. Thomas Nicolai, D.C.

Chiropractor (CMS: Chiropractic) · Chiropractor · Warrenton, VA

  • NPI 1598855959
  • 28 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
493 Blackwell RD, Ste 350
Warrenton, VA 201862628
(540) 347-5900

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
September 26, 2016
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
111N00000X — NUCC code
State licenses (2)
Virginia #0104556763 · North Dakota #656
Medicaid
ND #11157

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598855959. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
938
Distinct HCPCS
1
Medicare allowed
$25,530
HCPCS Description Services Patients Avg allowed
98940 Chiropractic manipulative treatment, 1-2 spinal regions 938 119 $27

In context: peer comparison

Among 2 peers in this city , average services per provider: 1,216. This provider delivers 0.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Nicolai's medical specialty?
Dr. Thomas Nicolai practices Chiropractor in Warrenton, VA.
Where does Dr. Thomas Nicolai practice?
Dr. Thomas Nicolai practices at 493 Blackwell RD, Warrenton, VA 201862628. Office phone: 5403475900.
What is Dr. Thomas Nicolai's NPI?
Dr. Thomas Nicolai's National Provider Identifier (NPI) is 1598855959, issued by NPPES.
Does Dr. Thomas Nicolai accept Medicare assignment?
Dr. Thomas Nicolai does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Thomas Nicolai commonly perform?
Top Medicare-reported procedures in 2023: Chiropractic manipulative treatment, 1-2 spinal regions (HCPCS 98940). Source: CMS Medicare Physician & Other Practitioners file.