What is Thomas Nicolai's NPI number?

Thomas Nicolai's National Provider Identifier (NPI) is 1598855959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Nicolai's specialty?

Thomas Nicolai is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).

Where is Thomas Nicolai located?

Thomas Nicolai's practice location on file with NPPES is 493 Blackwell Rd, Warrenton, VA 20186-2628.

What is Thomas Nicolai's phone number?

The practice phone number listed in the NPPES registry for Thomas Nicolai is (540) 347-5900.

Does Thomas Nicolai accept Medicare?

Thomas Nicolai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Thomas Nicolai's NPI active?

Yes — Thomas Nicolai's NPI (1598855959) is active in the NPPES registry as of the last update on 2016-09-26.

IndividualActiveAccepts Medicare

Thomas Nicolai, D.C.

NPI 1598855959 · Chiropractor · Warrenton, VA

Thomas Nicolai, D.C. is a Chiropractor provider in Warrenton, VA (NPI 1598855959).

Provider details

NPI number: 1598855959
Entity type: Individual
Primary specialty: ChiropractorChiropractic Providers
Credential: D.C.
Sex: Male
Sole proprietor: Yes
License: 656 (ND)

Practice location

493 Blackwell Rd

Ste 350

Warrenton, VA 20186-2628

Phone: (540) 347-5900

Street-level locationGet directions

More VA providers

Mailing address

493 Blackwell Rd

Warrenton, VA 20186-2628

Specialties & taxonomies

ChiropractorPrimary111N00000XLicense 0104556763 (VA)
Chiropractic Providers
Chiropractor111N00000XLicense 656 (ND)
Chiropractic Providers

Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(90/100 index)

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

Registry tenure28% of score
20 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
1 documented practice location
Medicare service volume (vs. specialty peers)28% of score
1,018 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. 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.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Chiropractic Manipulative Treatment, 1-2 Spinal Regions98940	1,018	$27

Typical Medicare-allowed amounts for these services range $27–$27 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Enumerated: 2006-10-13
Last updated: 2016-09-26

Frequently asked questions

What is Thomas Nicolai's NPI number?: Thomas Nicolai's National Provider Identifier (NPI) is 1598855959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Thomas Nicolai's specialty?: Thomas Nicolai is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
Where is Thomas Nicolai located?: Thomas Nicolai's practice location on file with NPPES is 493 Blackwell Rd, Warrenton, VA 20186-2628.
What is Thomas Nicolai's phone number?: The practice phone number listed in the NPPES registry for Thomas Nicolai is (540) 347-5900.
Does Thomas Nicolai accept Medicare?: Thomas Nicolai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Thomas Nicolai's NPI active?: Yes — Thomas Nicolai's NPI (1598855959) is active in the NPPES registry as of the last update on 2016-09-26.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)