Joseph Zajchowski, MD
Emergency Medicine Physician · Durango, CO
Joseph Zajchowski, MD is an emergency medicine physician with a practice address in Durango, Colorado, and NPI 1992751572, issued on May 26, 2006. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joseph Zajchowski
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 4301067717 MI
Self-reported in NPPES; status is on the state search - Practice location
- 7532 County Road 250, Durango, CO 81301
- Phone
- (810) 814-0669
- Enumerated
- May 26, 2006
- Record last updated
- Mar 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040315000109); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,434 in Colorado → Look up another NPI →
Verify Joseph Zajchowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average emergency medicine physician in 2024
63 Medicare Part D claims for 32 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
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.
Bills Medicare through one group practice
- Mclaren Hospital GroupLapeer, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Zajchowski among 1,434 emergency medicine physician records in Colorado
Joseph Zajchowski, MD is one of 1,434 emergency medicine physician records with a practice address in Colorado. 77% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1995 · median 2011 among the 810 with a school on file
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 emergency medicine physician records list a practice address in Durango
They are 22 of the 1,407 NPPES records with a practice address in Durango, and 1,434 emergency medicine physician records in Colorado.
All 1,434 in Colorado → Every provider in Durango → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- John Cartier, MDDurango, CO 813011063510667
- Anthony Demond, M.D.Durango, CO 813011982612255
- Susan GrahamDurango, CO 813011730193756
- Stephen HaverlyDurango, CO 813011114034550
- James HuberDurango, CO 813011972578235
- Randal Jernigan, MDDurango, CO 813011063439917
- Stephen JohnsonDurango, CO 813011326134875
- John Mathers, DODurango, CO 813011508912114
Common questions
What is Joseph Zajchowski, MD's NPI number?
Joseph Zajchowski, MD's National Provider Identifier (NPI) is 1992751572, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Zajchowski, MD located?
The NPPES record lists a practice address at 7532 County Road 250, Durango, CO, 81301. Phone: (810) 814-0669. Providers update this record themselves, so call before visiting.
How can I verify Joseph Zajchowski, MD's license?
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 Joseph Zajchowski, MD prescribe under Medicare Part D?
In 2024, Joseph Zajchowski, MD had 63 Medicare Part D claims for 32 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.