Matthew D. Niehaus, AA-C
Anesthesiologist Assistant · Greenwood Village, CO
Matthew D. Niehaus, AA-C is an anesthesiologist assistant with a practice address in Greenwood Village, Colorado, and NPI 1679912216, issued on Jun 17, 2013. Check the license (Colorado ANT.0000040, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew D. Niehaus
- Credential
- AA-C
- Primary taxonomy
- Anesthesiologist Assistant 367H00000X
- License number
- ANT.0000040 CO
Self-reported in NPPES; status is on the state search - Practice location
- 8000 E Maplewood Ave Ste 120, Greenwood Village, CO 80111
- Phone
- (303) 438-3999
- Enumerated
- Jun 17, 2013
- Record last updated
- Nov 29, 2023
- Fax
- (720) 439-9500
- Medicare enrollment
- Enrolled (PECOS I20150929002855); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 8000 E Maplewood Ave Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacob AbelCertified Registered Nurse Anesthetist1902610553
- Joshua Adams, CRNACertified Registered Nurse Anesthetist1013456060
- Eric AhlstedtAnesthesiologist Assistant1982136925
- Kaitlin AhlstedtAnesthesiologist Assistant1508422684
- Maarij Ahmad, DOAnesthesiology Physician1073176228
- Jason Anderkin, CAAAnesthesiologist Assistant1194519785
Verify Matthew D. Niehaus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license ANT.0000040Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 81 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- US Anesthesia Partners OF Colorado IncLone Tree, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
83 anesthesiologist assistant records list a practice address in Greenwood Village
They are 83 of the 2,654 NPPES records with a practice address in Greenwood Village, and 221 anesthesiologist assistant records in Colorado.
All 83 in Greenwood Village → All 221 in Colorado → Every provider in Greenwood Village →
Other anesthesiologist assistant records in Colorado
- Meagan AbbagnaroAurora, CO1851254262
- Andrew Adamsbaum, CAAGreenwood Village, CO1518677830
- Eric AhlstedtGreenwood Village, CO1982136925
- Kaitlin AhlstedtGreenwood Village, CO1508422684
- Arafat Alim, C-AAColorado Springs, CO1811427867
- Jason Anderkin, CAAGreenwood Village, CO1194519785
- Hannah Armetta, CAAGreenwood Village, CO1609586403
- Kalhemir Arroyo Rodriguez, CAAGreenwood Village, CO1487447835
- Ean Balyer, AA-CAurora, CO1447637871
- Suzan Banks, AAAurora, CO1154662393
Common questions
What is Matthew D. Niehaus, AA-C's NPI number?
Matthew D. Niehaus, AA-C's National Provider Identifier (NPI) is 1679912216, issued on Jun 17, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Matthew D. Niehaus, AA-C located?
The NPPES record lists a practice address at 8000 E Maplewood Ave Ste 120, Greenwood Village, CO, 80111. Phone: (303) 438-3999. Providers update this record themselves, so call before visiting.
How can I verify Matthew D. Niehaus, AA-C's license?
NPPES lists Colorado license number ANT.0000040, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
What is Matthew D. Niehaus, AA-C's MIPS final score?
The 2023 MIPS final score is 81 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.