Derek Einhorn, M.D.
NPI 1801855762 · Internal Medicine Physician · Novi, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Einhorn, M.D. is a Internal Medicine Physician provider in Novi, MI (NPI 1801855762).
Provider details
- NPI number
- 1801855762
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301071970 (MI)
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
1,697 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 224 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 173 | $126 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 167 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 140 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 109 | $89 |
| Blood Test, Lipids (cholesterol and Triglycerides) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 245 | 72 |
| Losartan Potassium | 149 | 45 |
| Levothyroxine Sodium | 134 | 37 |
| Tirzepatidebrand: Mounjaro | 117 | 22 |
| Omeprazole | 107 | 34 |
| Rosuvastatin Calcium | 100 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,380 across 78 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
- 2006-03-20
- Last updated
- 2025-09-22
- Certified
- 2025-09-22
Frequently asked questions
- What is Derek Einhorn's NPI number?
- Derek Einhorn's National Provider Identifier (NPI) is 1801855762, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Einhorn's specialty?
- Derek Einhorn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Einhorn located?
- Derek Einhorn's practice location on file with NPPES is 39475 Lewis Drive, Novi, MI 48377-2977.
- What is Derek Einhorn's phone number?
- The practice phone number listed in the NPPES registry for Derek Einhorn is (248) 374-0502.
- Does Derek Einhorn accept Medicare?
- Derek Einhorn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Einhorn's NPI active?
- Yes — Derek Einhorn's NPI (1801855762) is active in the NPPES registry as of the last update on 2025-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.