Marshall Barnett Sack, D.O.
NPI 1629071170ActiveIndividual· Family Medicine· Novi, MI
Family Medicine (D.O.) in Novi, Michigan, trained at Michigan State University College of Human Medicine (class of 1978). Their prescriptions cost Medicare Part D more than their services did: $1,393,898 for 8,954 claims, against $153,297 paid for services in 2024. Neurocrine Biosciences, Inc. was the largest of 20 companies reporting payments in 2025, $1,443 in all, mostly food and beverage.
Overview
| NPI | 1629071170 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | May 28, 2005 |
| Last updated in NPPES | Apr 26, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 5101007596 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Practice (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 247 |
|---|---|
| Services billed | 3,308 across 44 procedure codes |
| Paid by Medicare | $153,297 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,954 · 17,432 30-day fills |
|---|---|
| Patients | 658 |
| Total drug cost | $1,393,898 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 1978 |
| Medicare specialty | General Practice |
| Telehealth | Offers telehealth |
Medical group
- Family Care Physicians, P.C.Novi, MI · 6 clinicians
Hospital affiliations
- Ascension Providence Hospital, Southfield and NoviSouthfield, MI
- Beaumont Hospital - Farmington HillsFarmington Hills, MI
- Beaumont Hospital Royal OakRoyal Oak, MI
- Henry Ford Health HospitalDetroit, MI
- University of Michigan Health SystemAnn Arbor, MI
Other facilities
- Beaumont Home HealthHome health agency · Troy, MI
Industry payments (Open Payments)
- 2025$1,443 · 72 payments from 20 companies
- 2024$880.37 · 39 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Neurocrine Biosciences, Inc. | $259.48 | 13 |
| Teva Pharmaceuticals USA, Inc. | $199.84 | 10 |
| Lundbeck LLC | $148.18 | 7 |
| Otsuka America Pharmaceutical, Inc. | $141.42 | 7 |
| Abbvie Inc. | $105.28 | 6 |
What the 2025 payments were for
- Food and Beverage$1,443 · 72 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 75 family medicine physicians in Novi · All family medicine physicians in Michigan