Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Darin E Allen, MD

Individual provider Anesthesiology Physician · NPI 1780946053

Darin E Allen, MD practises Anesthesiology in Longmont, Colorado. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 2016, 10 years ago. Practices with Caw Anesthesia PLLC, a 4-clinician group and accepts Medicare assignment. Licensed in Colorado.

Years since qualifying
10
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
CO
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1610 Dry Creek Dr
Longmont, CO 80503-6405
Phone: (303) 422-9438
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence DR.0069795 (CO)

Record details

NPI number1780946053
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 13, 2012
Last updated in NPPESDecember 3, 2025
Certification dateDecember 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 2016 (10 years in practice)
Group practice Caw Anesthesia Pllc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients120
Services billed 153 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Caw Anesthesia PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Longmont