1. Home
  2. Directory
  3. Colorado
  4. Denver
  5. Internal Medicine
  6. NPI Profile

DR. PETER BRENDAN CAHILL MD
NPI 1144389123
Internal Medicine - Geriatric Medicine in Denver, CO

Active since December 06, 2006PECOS Enrolled
10350 E DAKOTA AVE, DENVER, CO 80247(303) 338-4545 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 4, 2026, Apr 26, 2021, Jun 1, 2020 (3 updates tracked since 2020).

About Dr. Peter Brendan Cahill Md NPPES

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

DR. PETER BRENDAN CAHILL MD (NPI 1144389123) is an individual geriatric medicine provider in Denver, Colorado, licensed in Colorado (32931) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1144389123
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameDR. PETER BRENDAN CAHILLCredential: MD
Location Address10350 E DAKOTA AVEDenver, CO 80247-1314
Mailing Address10350 E Dakota AveDenver, CO 80247-1314
Phone(303) 338-4545
Sole ProprietorNo
Enumeration DateDecember 6, 2006
Last NPPES UpdateJune 4, 20263 updates tracked since enumeration
NPPES CertifiedJune 4, 2026
✔ NPI 1144389123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in CO · 32931
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
Also ListedInternal MedicineTaxonomy 207R00000X · License DR.0032931 (CO)
10350 E DAKOTA AVE, Denver, CO 80247
Open in Google Maps ↗

Other Identifiers 2

Medicaid01329317CO
Other022453CO · Kaiser Commercial Number

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Peter Brendan Cahill 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80247 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$174.82 typical visit price
range $58.06 – $174.82
Typical copayment $43.70 (range $14.51 – $43.70)
Most-billed visit code 99205
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

LAUREN ELIZABETH HILLARY PA-C
Physician Assistant
10350 E DAKOTA AVE
DENVER, CO 80247
Denver County (303) 338-4545
DR. LISA D WHITESIDES MD
Pediatrics
10350 E DAKOTA AVE
DENVER, CO 80247
Denver County (303) 338-4545
MARJORIE E COOKE-BARTSCH
Registered Nurse (Psychiatric/Mental Health)
10350 E DAKOTA AVE
DENVER, CO 80247
Denver County (303) 344-7283
DR. JOHN PAUL WILKINS MD
Internal Medicine (Sleep Medicine)
10350 E DAKOTA AVE
DENVER, CO 80247
Denver County (303) 338-4545
MARCI J HOLSTEGE NP
Nurse Practitioner
10350 E DAKOTA AVE, STE B
DENVER, CO 80247
Denver County (303) 338-4545
DR. LORI GREENE MD
Psychiatry & Neurology (Psychiatry)
10350 E DAKOTA AVE
DENVER, CO 80247
Denver County (303) 338-3800
PATRICIA E WENDLE LCSW
Social Worker (Clinical)
10350 E DAKOTA AVE, SUITE B
DENVER, CO 80247
Denver County (303) 338-4545
ANNE E READ NP
Nurse Practitioner (Family)
10350 E DAKOTA AVE
DENVER, CO 80247
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 Peter Cahill's NPI number?

The NPI number for Peter Cahill is 1144389123. It was assigned to this individual provider in the NPPES registry on December 6, 2006.

Where is Peter Cahill located?

Peter Cahill practices at 10350 E Dakota Ave, Denver, CO 80247. The listed phone number is (303) 338-4545.

What is Peter Cahill's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Peter Cahill enrolled in Medicare?

Yes. Peter Cahill is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Peter Cahill was last updated on June 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.