DEREK EINHORN (M.D.) – Internal Medicine Physician, NPI 1801855762
Internal Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
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Provider Addresses for DEREK EINHORN (M.D.)
Lewis Drive, Novi, Oakland County, Michigan, 48377, United States
SUITE 130
NOVI, MI 483772977
Phone: (248) 374-0502
Fax: (248) 374-0567
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 144 Open Payments records for all available years, with a total value of $2,364.
Total Amount is formed as General ($2,364) + Research ($0) + Ownership ($0) = $2,364.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Lilly USA, LLC ($461).
Total Amount
$2,364
General + Research + Ownership
Payments
144
Total payment records
General Amount
$2,364
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $461 |
| Novo Nordisk Inc | $325 |
| ABBVIE INC. | $310 |
| PFIZER INC. | $229 |
| Exact Sciences Corporation | $153 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-09-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040920000919 | I | Internal Medicine | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 150 | 98 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 136 | 77 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 124 | 87 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 118 | 81 | $0 |
| 81003 | Automated urinalysis test | 104 | 84 | $0 |
Insurance plans in this area (ZIP 48377)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MI | 83036 | Hemoglobin A1C level | 27 | 15 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | MI | |
| Family Practice, General Practice | MI | |
| Family Practice | MI | |
| Internal Medicine | MI | |
| Orthopedic Surgery | MI | |
| Physician Assistant | MI | |
| Infectious Disease, Internal Medicine | ME | |
| Diagnostic Radiology | MI | |
| Family Practice | MI | |
| Nurse Practitioner | MI |
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