Karl R. Treffinger, MD
Emergency Medicine Physician · Colorado Springs, CO
Karl R. Treffinger, MD is an emergency medicine physician with a practice address in Colorado Springs, Colorado, and NPI 1205837333, issued on Aug 10, 2005. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karl R. Treffinger
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G70075 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 E Boulder St, Colorado Springs, CO 80909
- Phone
- (719) 365-5000
- Enumerated
- Aug 10, 2005
- Record last updated
- Apr 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (303) 306-7753
- Medicare enrollment
- Enrolled (PECOS I20070925000171); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,434 in Colorado → Look up another NPI →
Also registered at 1400 E Boulder St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Simone Abachiche, NP-CFamily Nurse Practitioner1801566518
- Mary Abraham, PA-CPhysician Assistant1225696800
- Mark Alanis, MDMaternal & Fetal Medicine Physician1699804815
- Carah Aldrich, NPNeonatal Nurse Practitioner1255817441
- Elizabeth Allen, LCSWClinical Social Worker1952840662
- Russell Allen, MDAnesthesiology Physician1013968403
Verify Karl R. Treffinger 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
37% fewer Medicare Part D claims than the average emergency medicine physician in 2024
142 Medicare Part D claims for 105 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Cephalexin20 claims
- Azithromycin17 claims
- Oxycodone Hcl14 claims
- Prednisone14 claims
- Amoxicillin-Clavulanate Potass11 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.
Bills Medicare through one group practice
- Tec Emergency Physicians OF Arizona, LLCGilbert, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl R. Treffinger among 1,434 emergency medicine physician records in Colorado
Karl R. Treffinger, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1986 · median 2011 among the 810 with a school on file
- Record last updated2018 · 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).
Emergency Medicine Physician providers in Colorado
There are 1,434 emergency medicine physician records in Colorado.
All 1,434 in Colorado → Every provider in Colorado Springs → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Gregory Collins, D.O.Colorado Springs, CO 809091225012388
- Douglas CrossColorado Springs, CO 809091710960224
- Sean Donahue, DOColorado Springs, CO 809091508840760
- Clinton Fouss, DOColorado Springs, CO 809091871571786
- George HertnerColorado Springs, CO 809091699751966
- Timothy Jamison, M.D.Colorado Springs, CO 809091336125467
- Julie Kiley, MDColorado Springs, CO 809091730162314
- Tony Kim, MDColorado Springs, CO 809091609866573
Common questions
What is Karl R. Treffinger, MD's NPI number?
Karl R. Treffinger, MD's National Provider Identifier (NPI) is 1205837333, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Karl R. Treffinger, MD located?
The NPPES record lists a practice address at 1400 E Boulder St, Colorado Springs, CO, 80909. Phone: (719) 365-5000. Providers update this record themselves, so call before visiting.
How can I verify Karl R. Treffinger, 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 Karl R. Treffinger, MD prescribe under Medicare Part D?
In 2024, Karl R. Treffinger, MD had 142 Medicare Part D claims for 105 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.