NPPES file of Aug 9, 2026

Kaitlyn M. Siesel

Certified Registered Nurse Anesthetist · Greeley, CO

Kaitlyn M. Siesel is a certified registered nurse anesthetist with a practice address in Greeley, Colorado, and NPI 1356899389, issued on Sep 19, 2016. Check the license (Colorado APN.0993218-CRNA, 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
1356899389
Name
Kaitlyn M. Siesel
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
APN.0993218-CRNA CO
111936 CA
111936 OH
Self-reported in NPPES; status is on the state search
Practice location
1801 16TH Street, Greeley, CO 80631
Phone
(970) 810-4121
Enumerated
Sep 19, 2016
Record last updated
Jan 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(770) 701-6675
Medicare enrollment
Enrolled (PECOS I20201028000616); 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 certified registered nurse anesthetist records → All 867 in Colorado → Look up another NPI →

Also registered at 1801 16TH Street

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

  1. Vicki Callahan, MDAnesthesiology Physician1073669669
  2. Ashley Imburgia, PSY.DClinical Psychologist1295201291
  3. Frank Purdie, MDEmergency Medicine Physician1710910120
  4. Brad Stevinson, MDEmergency Medicine Physician1992978894

Verify Kaitlyn M. Siesel 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 APN.0993218-CRNA    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. Dayton Anesthesia And Pain Services LLCWadsworth, OH

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

Kaitlyn M. Siesel among 867 certified registered nurse anesthetist records in Colorado

Kaitlyn M. Siesel is one of 867 certified registered nurse anesthetist records with a practice address in Colorado. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 64% of them.

  • NPI issued2016 · 64% of these records are older, 32% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2016 · median 2014 among the 646 with a school on file
  • Record last updated2020 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in Colorado

There are 867 certified registered nurse anesthetist records in Colorado.

All 867 in Colorado → Every provider in Greeley → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Renee Anderson, CRNAGreeley, CO 806311457339848
  2. Ryan Beck, CRNAGreeley, CO 806311699002741
  3. Juliet Erb, CRNAGreeley, CO 806311679703748
  4. Lee Freeman, CRNAGreeley, CO 806311851310742
  5. Mary Haskett, CRNAGreeley, CO 806311326089657
  6. Michael Hermsmeier, CRNAGreeley, CO 806311245538271
  7. John Howerter, CRNAGreeley, CO 806311114227873
  8. Mitchell Larson, CRNAGreeley, CO 806311639147705

Common questions

What is Kaitlyn M. Siesel's NPI number?

Kaitlyn M. Siesel's National Provider Identifier (NPI) is 1356899389, issued on Sep 19, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Kaitlyn M. Siesel located?

The NPPES record lists a practice address at 1801 16TH Street, Greeley, CO, 80631. Phone: (970) 810-4121. Providers update this record themselves, so call before visiting.

How can I verify Kaitlyn M. Siesel's license?

NPPES lists Colorado license number APN.0993218-CRNA, 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.