William Miller, M.D.
NPI 1821094988 · Cardiovascular Disease Physician · Fort Collins, CO
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Miller, M.D. is a Cardiovascular Disease Physician provider in Fort Collins, CO (NPI 1821094988).
Provider details
- NPI number
- 1821094988
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 15759 (NE)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
21 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
2,106 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 | 570 | $129 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 252 | $7 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 234 | $67 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 152 | $168 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 109 | $110 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 296 | 95 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 249 | 93 |
| Rosuvastatin Calcium | 246 | 71 |
| Metoprolol Succinate | 222 | 77 |
| Amlodipine Besylate | 178 | 55 |
| Losartan Potassium | 141 | 49 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$367 across 3 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
- 2005-06-23
- Last updated
- 2016-12-09
Frequently asked questions
- What is William Miller's NPI number?
- William Miller's National Provider Identifier (NPI) is 1821094988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Miller's specialty?
- William Miller is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is William Miller located?
- William Miller's practice location on file with NPPES is 2121 E Harmony Rd, Fort Collins, CO 80528-3401.
- What is William Miller's phone number?
- The practice phone number listed in the NPPES registry for William Miller is (970) 221-1000.
- Does William Miller accept Medicare?
- William Miller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Miller's NPI active?
- Yes — William Miller's NPI (1821094988) is active in the NPPES registry as of the last update on 2016-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.