Ehrin J Armstrong, M.D.

Individual provider Active NPI Interventional Cardiology Physician · Englewood, CO

NPI 1699733634 · NPPES record last updated Aug 19, 2025

Key facts

NPI
1699733634
Entity type
Individual (NPI type 1)
Primary specialty
Interventional Cardiology Physician 207RI0011X
License
DR.0053941 (CO)
Practice address
499 E Hampden Ave Ste 200
Englewood, CO 80113-2792
Phone
(303) 226-4648
NPI assigned
May 1, 2006
Sex
Male
Sole proprietor
No

Organizations & group practices 11

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 15

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

Medicare Care Compare profile

Specialty
Interventional Cardiology
Also: Cardiovascular Disease (Cardiology)
Education
Harvard Medical School, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Healthone Heart Care LLC (48 clinicians)
Keefe Memorial Health Service District (22 clinicians)

Practice addresses (Care Compare)

235 W Fletcher St
Haxtun, CO 80731-2737
Phone (970) 774-6123

602 N 6TH St W
Cheyenne Wells, CO 80810-5125
Phone (719) 767-5661

615 W 5TH St N
Cheyenne Wells, CO 80810
Phone (719) 767-5669

PO Box
Cheyenne Wells, CO 80810

Hospital & facility affiliations

  • HCA-Healthone Dba Swedish Medical Center Hospital · Englewood, CO · CCN 060034
  • Haxtun Hospital District Hospital · Haxtun, CO · CCN 061304
  • Keefe Memorial Hospital Hospital · Cheyenne Wells, CO · CCN 061343
  • The Medical Center of Aurora & South Hospital Hospital · Aurora, CO · CCN 060100
  • HCA Healthone Rose Hospital · Denver, CO · CCN 060032

Merit-based Incentive Payment System (MIPS)

Final score
68.01 of 100 (group)
Quality
76.44
Promoting interoperability
100
Improvement activities
40
Cost
10

Procedures performed for Medicare patients

ProcedureNumber of procedures
Coronary angioplasty and stenting26
Pacemaker insertion or repair1-10
Varicose vein removal17
Leg revascularization (restoring blood flow)32

Medicare participation

Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
I20140121001399 CO Practitioner - Interventional Cardiology
Practitioner - Cardiovascular Disease (Cardiology)
9830196039 Reassigns benefits to 5 organizations

National Provider Directory

Medicare enrollment (NPD)
Yes
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Keefe Memorial Health Service District Current
since Nov 1, 2025
Accepting new patients
Healthone Heart Care LLC Cardiovascular Disease Current
since Sep 1, 2025
Accepting new patients
Vascular Labs of the Rockies PLLC Current
since Dec 3, 2023
Accepting new patients
Keefe Memorial Health Service District Current
since Nov 22, 2024
Accepting new patients
Keefe Memorial Health Service District Current
since Nov 22, 2024
Accepting new patients
Advanced Heart and Vein Center Inc Cardiovascular Disease Current
since Sep 1, 2022
Accepting new patients
Newton-Wellesley Hospital Past Accepting new patients
Healthone Heart Care LLC Cardiovascular Disease Past
since Sep 27, 2020
Accepting new patients
Mass General Brigham Medical Group Suburban Massachusetts Inc Cardiovascular Disease Past Accepting new patients
Regents of the Univ of Ca Past Accepting new patients

Locations

1444 S Potomac St
#30
Aurora, CO 80012
Phone (303) 750-0822

14100 E Arapahoe Rd
Ste 130
Centennial, CO 80112
Phone (303) 241-5751

602 N 6th St W
Cheyenne Wls, CO 80810
Phone (719) 767-5661

4105 E Florida Ave
Ste 200
Denver, CO 80222
Phone (303) 364-1057

4105 E Florida Ave
Ste 100
Denver, CO 80222
Phone (303) 539-0736

499 E Hampden Ave
Ste 200
Englewood, CO 80113
Phone (303) 409-1430

235 W Fletcher St
Haxtun, CO 80731
Phone (970) 351-0999

102 E 2nd Ave
Kit Carson, CO 80825
Phone (719) 962-3501

10103 Ridgegate Pkwy
Ste 103
Lone Tree, CO 80124
Phone (303) 645-0090

805 E 144th Ave
Ste 100
Thornton, CO 80023

2000 Health Park Dr
Brentwood, TN 37027
Phone (615) 372-5426

Interoperability endpoints

  • Direct secure messaging: ehrin.armstrong.1@14566.direct.athenahealth.com
  • Direct secure messaging: ehrin.armstrong@hca3.eclinicaldirectplus.com

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X DR.0053941 CO
Interventional Cardiology Physician 207RI0011X DR.0053941 CO Yes

Addresses

Primary practice location

499 E Hampden Ave Ste 200
Englewood, CO 80113-2792

Mailing address

499 E Hampden Ave Ste 200
Englewood, CO 80113-2792
Phone (303) 226-4648

Other providers in Englewood, CO

All providers in Englewood, CO · Interventional Cardiology Physician in Colorado

Sources for this page

Verify at the official NPI Registry.