Michael Willoughby, D.O.
NPI 1457589582 · Cardiovascular Disease Physician · Mount Clemens, MI
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Willoughby, D.O. is a Cardiovascular Disease Physician provider in Mount Clemens, MI (NPI 1457589582).
Provider details
- NPI number
- 1457589582
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101018254 (MI)
Specialties & taxonomies
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
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
987 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 243 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 202 | $102 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 63 | $31 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 56 | $24 |
| Evaluation of Single, Dual, Or Multiple Lead Implantable Defibrillator System, Remote Up to 90 Days93295 | 55 | $38 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 84 | 33 |
| Sotalol Hclbrand: Sotalol | 71 | 22 |
| Metoprolol Succinate | 59 | 20 |
| Amiodarone Hcl | 52 | 29 |
| Flecainide Acetate | 42 | 18 |
| Metoprolol Tartrate | 39 | 15 |
| Rivaroxabanbrand: Xarelto |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$264 across 5 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
Additional practice locations (1)
- 12251 S 80th Ave Ste 1520Palos Heights, IL 60463-1290Phone: (708) 923-4200Fax: (708) 923-4201
Registry dates
- Enumerated
- 2009-06-27
- Last updated
- 2025-08-22
- Certified
- 2025-08-22
Frequently asked questions
- What is Michael Willoughby's NPI number?
- Michael Willoughby's National Provider Identifier (NPI) is 1457589582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Willoughby's specialty?
- Michael Willoughby is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Willoughby located?
- Michael Willoughby's practice location on file with NPPES is 1000 Harrington St, Mount Clemens, MI 48043-2920.
- What is Michael Willoughby's phone number?
- The practice phone number listed in the NPPES registry for Michael Willoughby is (586) 493-8000.
- Does Michael Willoughby accept Medicare?
- Michael Willoughby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Willoughby's NPI active?
- Yes — Michael Willoughby's NPI (1457589582) is active in the NPPES registry as of the last update on 2025-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.