NPPES file of Aug 9, 2026

Kristen Dorak Viehman, PA-C

Surgical Physician Assistant · Greenwood Village, CO

Kristen Dorak Viehman, PA-C is a surgical physician assistant with a practice address in Greenwood Village, Colorado, and NPI 1396077384, issued on Feb 2, 2010. Check the license (Colorado 3406, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396077384
Name
Kristen Dorak Viehman
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License numbers
3406 CO
C0004135 MD
Self-reported in NPPES; status is on the state search
Practice location
5351 S Roslyn St Ste 200, Greenwood Village, CO 80111
Phone
(303) 469-3182
Enumerated
Feb 2, 2010
Record last updated
Jul 21, 2022
Fax
(303) 469-4693
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5351 S Roslyn St Ste 200

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

  1. Hoang Dang, MDFamily Medicine Physician1861920746
  2. Sydney DittmanFamily Medicine Physician1619400918
  3. Steven Matthews, PA-CSurgical Physician Assistant1902835614
  4. Sarah McMahon, MDObstetrics & Gynecology Physician1134756026
  5. Erika Mrzlak, LSWClinical Social Worker1578187837
  6. Justin Quinette, DOSports Medicine (Family Medicine) Physician1043873904

Verify Kristen Dorak Viehman 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 3406
    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

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38% fewer Medicare Part D claims than the average surgical physician assistant in 2024

188 Medicare Part D claims for 61 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 76 claims were for opioids.

  1. Kristen Viehman188
  2. Specialty average304

Most prescribed

  1. Aimovig Autoinjector16 claims
  2. Baclofen15 claims
  3. Oxycodone Hcl15 claims
  4. Gabapentin13 claims
  5. Buprenorphine Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Kristen Dorak Viehman among 699 surgical physician assistant records in Colorado

Kristen Dorak Viehman, PA-C is one of 699 surgical physician assistant records with a practice address in Colorado. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 33% of them.

  • NPI issued2010 · 33% of these records are older, 63% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileNo · 73% of these records are
  • Record last updated2022 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in Colorado

There are 699 surgical physician assistant records in Colorado.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Jacob Blumenfeld, PA-CGreenwood Village, CO 801111083474936
  2. Brooke Distefano, P.A.Greenwood Village, CO 801111124001649
  3. Steffanie Durkin, PA-CGreenwood Village, CO 801111508126913
  4. Kevin Fasing, PAGreenwood Village, CO 801111346881109
  5. Courtney FlynnGreenwood Village, CO 801111972162436
  6. Ross Gallucci, PA-CGreenwood Village, CO 801111114180932
  7. Steven Matthews, PA-CGreenwood Village, CO 801111902835614
  8. Deja Simmons, PA-CGreenwood Village, CO 801111275751315

Common questions

What is Kristen Dorak Viehman, PA-C's NPI number?

Kristen Dorak Viehman, PA-C's National Provider Identifier (NPI) is 1396077384, issued on Feb 2, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Kristen Dorak Viehman, PA-C located?

The NPPES record lists a practice address at 5351 S Roslyn St Ste 200, Greenwood Village, CO, 80111. Phone: (303) 469-3182. Providers update this record themselves, so call before visiting.

How can I verify Kristen Dorak Viehman, PA-C's license?

NPPES lists Colorado license number 3406, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Kristen Dorak Viehman, PA-C prescribe under Medicare Part D?

In 2024, Kristen Dorak Viehman, PA-C had 188 Medicare Part D claims for 61 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions 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.

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.