Ehrin Armstrong, M.D.
NPI 1699733634 · Interventional Cardiology Physician · Englewood, CO
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ehrin Armstrong, M.D. is a Interventional Cardiology Physician provider in Englewood, CO (NPI 1699733634).
Provider details
- NPI number
- 1699733634
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- DR.0053941 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,262 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 209 | $132 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 179 | $70 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 106 | $122 |
| Ultrasound Evaluation of Blood Vessel With Review By Radiologist, Each Additional Vessel37253 | 90 | $181 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 86 | $15 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clopidogrel Bisulfatebrand: Clopidogrel | 95 | 41 |
| Alprazolam | 92 | 71 |
| Apixabanbrand: Eliquis | 47 | 21 |
| Evolocumabbrand: Repatha Sureclick | 38 | — |
| Rosuvastatin Calcium | 27 | 12 |
| Metoprolol Succinate | 23 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$59,659 across 154 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-01
- Last updated
- 2025-08-19
- Certified
- 2025-08-19
Frequently asked questions
- What is Ehrin Armstrong's NPI number?
- Ehrin Armstrong's National Provider Identifier (NPI) is 1699733634, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ehrin Armstrong's specialty?
- Ehrin Armstrong is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Ehrin Armstrong located?
- Ehrin Armstrong's practice location on file with NPPES is 499 E Hampden Ave Ste 200, Englewood, CO 80113-2792.
- What is Ehrin Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Ehrin Armstrong is (303) 226-4648.
- Does Ehrin Armstrong accept Medicare?
- Ehrin Armstrong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ehrin Armstrong's NPI active?
- Yes — Ehrin Armstrong's NPI (1699733634) is active in the NPPES registry as of the last update on 2025-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.