NPPES file of Aug 9, 2026

Dan Kopacz, MD

Anesthesiology Physician · Englewood, CO

Dan Kopacz, MD is an anesthesiology physician with a practice address in Englewood, Colorado, and NPI 1811919186, issued on Jul 24, 2006. Check the license (Colorado 28934, as entered in NPPES) on the Colorado Medical Board; 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
1811919186
Name
Dan Kopacz
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
28934 CO
Self-reported in NPPES; status is on the state search
Practice location
333 W Hampden Ave, Englewood, CO 80110
Phone
(303) 761-5646
Enumerated
Jul 24, 2006
Record last updated
Jul 22, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(303) 761-9280
Medicaid ID
45035580 CO
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 333 W Hampden Ave

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

  1. Sherri Adams, LCSWClinical Social Worker1013162049
  2. Janeen Anderson, MDAnesthesiology Physician1144242421
  3. Paul BaileyPhysical Therapist1225567365
  4. Jeff Baker, MDAnesthesiology Physician1194832113
  5. Jeffrey Buesing, M.D.Anesthesiology Physician1770719395
  6. Mary Cook-PeckMental Health Counselor1447524020

Verify Dan Kopacz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 28934
    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
Open 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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97% fewer Medicare Part D claims than the average anesthesiology physician in 2024

12 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Dan Kopacz12
  2. Specialty average402

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.

Dan Kopacz among 1,202 anesthesiology physician records in Colorado

Dan Kopacz, MD is one of 1,202 anesthesiology physician records with a practice address in Colorado. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 69% of these records are
  • Record last updated2018 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

57 anesthesiology physician records list a practice address in Englewood

They are 57 of the 2,840 NPPES records with a practice address in Englewood, and 1,202 anesthesiology physician records in Colorado.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Lee Arensberg, MDEnglewood, CO 801101700864949
  2. Miguel Benet, MDEnglewood, CO 801101851371975
  3. Donald Crino, MDEnglewood, CO 801101487633525
  4. Dan Davis, MDEnglewood, CO 801101053390195
  5. Jeffrey Dobyns, DOEnglewood, CO 801101114906260
  6. Ronald Ellis, MDEnglewood, CO 801101104805217
  7. Jon Erickson, MDEnglewood, CO 801101487634051
  8. James Gonzales, MDEnglewood, CO 801101942289079

Common questions

What is Dan Kopacz, MD's NPI number?

Dan Kopacz, MD's National Provider Identifier (NPI) is 1811919186, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dan Kopacz, MD located?

The NPPES record lists a practice address at 333 W Hampden Ave, Englewood, CO, 80110. Phone: (303) 761-5646. Providers update this record themselves, so call before visiting.

How can I verify Dan Kopacz, MD's license?

NPPES lists Colorado license number 28934, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dan Kopacz, MD prescribe under Medicare Part D?

In 2024, Dan Kopacz, MD had 12 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.