NPPES file of Aug 9, 2026

Thomas Sittig, APRN - FNP

Family Nurse Practitioner · Broomfield, CO

Thomas Sittig, APRN - FNP is a family nurse practitioner with a practice address in Broomfield, Colorado, and NPI 1013722057, issued on Feb 7, 2025. Check the license (Colorado 1000520-NP, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1013722057
Name
Thomas Sittig
Credential
APRN - FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
1000520-NP CO
Self-reported in NPPES; status is on the state search
Practice location
340 E 1St Ave Ste 102, Broomfield, CO 80020
Phone
(720) 798-0170
Enumerated
Feb 7, 2025
Record last updated
Jun 16, 2025
Fax
(303) 862-7102
Medicare enrollment
Enrolled (PECOS I20250307003498); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 3,492 in Colorado → Look up another NPI →

Also registered at 340 E 1St Ave Ste 102

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kelley AndersonBehavior Technician1346845815
  2. Atziry ApodacaBehavior Technician1265047328
  3. Jessica Arciniega-ValdezBehavior Technician1144812249
  4. Megan BahnsonTechnician/Technologist1700553328
  5. Benjamin BeckmanBehavior Technician1962172809
  6. Sara BielenBehavior Technician1073104808

Verify Thomas Sittig in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license 1000520-NP    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Onpoint Medical Group LLCBroomfield, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Thomas Sittig among 3,492 family nurse practitioner records in Colorado

Thomas Sittig, APRN - FNP is one of 3,492 family nurse practitioner records with a practice address in Colorado. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 92% of them.

  • NPI issued2025 · 92% of these records are older, 2% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2024 · median 2019 among the 1,950 with a school on file
  • Record last updated2025 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

40 family nurse practitioner records list a practice address in Broomfield

They are 40 of the 1,403 NPPES records with a practice address in Broomfield, and 3,492 family nurse practitioner records in Colorado.

All 3,492 in Colorado → Every provider in Broomfield → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Kristin Bradley, F.N.PBroomfield, CO 800201619160454
  2. Julie Brown, FNP-CBroomfield, CO 800201649421405
  3. Renee Calcaterra, APNWestminster, CO 800201932502762
  4. Tracye Daniels, FNPBroomfield, CO 800201972921914
  5. Catherine Felson, FNPBroomfield, CO 800201689013377
  6. Amanda Ferguson, APRNBroomfield, CO 800201962959783
  7. Tavia Gabbert, NPWestminster, CO 800201720562333
  8. Ashley GerkBroomfield, CO 800201104363902

Common questions

What is Thomas Sittig, APRN - FNP's NPI number?

Thomas Sittig, APRN - FNP's National Provider Identifier (NPI) is 1013722057, issued on Feb 7, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Sittig, APRN - FNP located?

The NPPES record lists a practice address at 340 E 1St Ave Ste 102, Broomfield, CO, 80020. Phone: (720) 798-0170. Providers update this record themselves, so call before visiting.

How can I verify Thomas Sittig, APRN - FNP's license?

NPPES lists Colorado license number 1000520-NP, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.