DARIN E ALLEN MD
NPI 1780946053
Anesthesiology in Longmont, CO

Q: What is Darin Allen's NPI number?

The NPI number for Darin Allen is 1780946053. It was assigned to this individual provider in the NPPES registry on June 13, 2012.

Q: What is Darin Allen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Darin Allen was last updated on December 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 13, 2012PECOS EnrolledAccepts Medicare Assignment

1610 DRY CREEK DR, LONGMONT, CO 80503(303) 422-9438 Get Directions Write a Review

NPPES record last updated: December 3, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 3, 2025, Jul 12, 2023, Mar 17, 2018 and 2 more (5 updates tracked since 2017).

On this page

About Darin E Allen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DARIN E ALLEN MD (NPI 1780946053) is an individual anesthesiology provider in Longmont, Colorado, licensed in Colorado (DR.0069795) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2016).

NPPES Registry Identity

NPI1780946053

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameDARIN E ALLENCredential: MD

Location Address1610 DRY CREEK DRLongmont, CO 80503-6405

Mailing AddressPo Box 668Arvada, CO 80001-0668 · (913) 593-7647 · Fax (913) 674-2023

Phone(303) 422-9438

Sole ProprietorNo

Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 2016

Enumeration DateJune 13, 2012

Last NPPES UpdateDecember 3, 20255 updates tracked since enumeration

NPPES CertifiedDecember 3, 2025

✔ NPI 1780946053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CO · DR.0069795

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

1610 DRY CREEK DR, Longmont, CO 80503

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Darin E Allen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032415682

PECOS Enrollment IDI20230322000540

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Darin Allen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Caw Anesthesia, PLLC

Same address

Anesthesiology

1610 DRY CREEK DR
Longmont, CO 80503

Reassigned Medicare billing, Colorado enrollment
4 clinicians in this Medicare group

NPI 1619737830 (720) 494-4750

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810

Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.

47 services46 patients

Anesthesia for other procedure on forearm, wrist, or hand bones 01830

Anesthesia for procedures on forearm, wrist, or hand bones involves administering medications to block sensation in the specific area. It ensures you don't feel pain during the procedure. It can be local (numbing a small area) or regional (numbing a larger part of the body).

31 services31 patients

Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

22 services22 patients

Anesthesia for other procedure on lower leg, ankle, and foot bones 01480

Anesthesia for procedures on lower leg, ankle, and foot bones involves administering medication to block pain and sensation in these areas. This allows doctors to perform necessary treatments or surgeries without causing discomfort. The type of anesthesia used can vary based on the specific procedure.

12 services12 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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