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DR. DAVID KNOX BARCLAY MD
NPI 1033265616
Anesthesiology in Denver, CO

Active since January 26, 2007PECOS Enrolled
2045 N FRANKLIN ST, DENVER, CO 80205(303) 338-4545 Get Directions Write a Review

NPPES record last updated: April 1, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 1, 2021, Apr 17, 2020, Nov 8, 2016 (3 updates tracked since 2016).

About Dr. David Knox Barclay Md NPPES

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

DR. DAVID KNOX BARCLAY MD (NPI 1033265616) is an individual anesthesiology provider in Denver, Colorado, licensed in Colorado (48619) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033265616
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. DAVID KNOX BARCLAYCredential: MD
Location Address2045 N FRANKLIN STDenver, CO 80205-5437
Mailing Address10350 E Dakota AveDenver, CO 80247-1314 · (303) 338-3382
Phone(303) 338-4545
Sole ProprietorNo
Enumeration DateJanuary 26, 2007
Last NPPES UpdateApril 1, 20213 updates tracked since enumeration
NPPES CertifiedApril 1, 2021
✔ NPI 1033265616 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in CO · 48619✔ Licensed in MI · 4301089582
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.
Also ListedAnesthesiology · Pediatric AnesthesiologyTaxonomy 207LP3000X · License 4301089582 (MI)
2045 N FRANKLIN ST, Denver, CO 80205
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Other Identifiers 3

Medicaid00379271CO
Other024374CO · Kaiser Commercial Number
Medicaid5196681MI

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David Knox Barclay Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 David Barclay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Colorado Permanente Medical Group, P.C.
6.0 mi
Internal Medicine
10350 E DAKOTA AVE
Denver, CO 80247
  • Reassigned Medicare billing, Colorado enrollment
  • Medicare enrollment name: Colorado Permanente Medical Group PC
  • 1,715 clinicians in this Medicare group
NPI 1760599724 (303) 338-4545

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

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.

DR. ROBERT WARD BURMAN M.D., PH.D.
Radiology (Diagnostic Radiology)
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 338-4545
KIMBERLY ANN JOHNSON FNP-BC
Nurse Practitioner (Family)
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 344-4545
MS. ABIGAIL M MCMAHON AUD
Audiologist
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 338-4545
DR. JESUS HELIODORO HERMOSILLO RODRIGUEZ MD
Internal Medicine (Hematology & Oncology)
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 338-4545
SUZANNE MARIE EHLER FNP
Nurse Practitioner (Family)
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 338-4545
CENDI M DURAN RN
Registered Nurse
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 764-4463
DR. PETER JOSEPH KLAUCK MD
Anesthesiology
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 338-4545
MELANIE PHILLIPS
Registered Nurse (Oncology)
2045 N FRANKLIN ST
DENVER, CO 80205
Denver County (303) 338-4545

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Barclay's NPI number?

The NPI number for David Barclay is 1033265616. It was assigned to this individual provider in the NPPES registry on January 26, 2007.

Where is David Barclay located?

David Barclay practices at 2045 N Franklin St, Denver, CO 80205. The listed phone number is (303) 338-4545.

What is David Barclay's specialty?

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

Is David Barclay enrolled in Medicare?

Yes. David Barclay is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for David Barclay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Barclay reassigns Medicare benefits to Colorado Permanente Medical Group, P.C. (Denver, CO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Barclay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Barclay was last updated on April 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.