Johnathan Stephan, MD
NPI 1558942268 · Cardiovascular Disease Physician · Southfield, MI
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnathan Stephan, MD is a Cardiovascular Disease Physician provider in Southfield, MI (NPI 1558942268).
Provider details
- NPI number
- 1558942268
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 35.150818 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
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 |
|---|---|---|
| Atorvastatin Calcium | 50 | 36 |
| Metoprolol Succinate | 40 | 33 |
| Losartan Potassium | 38 | 25 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 25 | 20 |
| Amlodipine Besylate | 22 | 14 |
| Amiodarone Hcl | 20 | 17 |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$269 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
Additional practice locations (1)
- 2799 W Grand BlvdDetroit, MI 48202-2689Phone: (313) 916-1601
Registry dates
- Enumerated
- 2021-04-15
- Last updated
- 2025-07-02
- Certified
- 2025-07-02
Frequently asked questions
- What is Johnathan Stephan's NPI number?
- Johnathan Stephan's National Provider Identifier (NPI) is 1558942268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnathan Stephan's specialty?
- Johnathan Stephan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Johnathan Stephan located?
- Johnathan Stephan's practice location on file with NPPES is 22250 Providence Dr Ste 705, Southfield, MI 48075.
- What is Johnathan Stephan's phone number?
- The practice phone number listed in the NPPES registry for Johnathan Stephan is (248) 552-9858.
- Does Johnathan Stephan accept Medicare?
- Johnathan Stephan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnathan Stephan's NPI active?
- Yes — Johnathan Stephan's NPI (1558942268) is active in the NPPES registry as of the last update on 2025-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.