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General Practice

Marshall B. Sack, DO

Works at hospitals in Southfield, MI · Farmington Hills, MI · Royal Oak, MI … · Michigan

Summary

Marshall B. Sack, DO (General Practice) is listed by Medicare at 5 hospitals in Southfield, MI, Farmington Hills, MI and Royal Oak, MI and other places. NPI 1629071170. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Marshall B. Sack, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

General PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
48Years since medical school (graduated 1978)
Michigan State University College Of Human MedicineMedical school
MaleGender (as listed)
Family Care Physicians, P.C.Group practice

Quick answers

Which hospitals does Marshall B. Sack work at?
Medicare's official clinician data lists Marshall B. Sack at 5 hospitals: Ascension Providence Hospital, Southfield and Novi…, Beaumont Hospital - Farmington Hills, Beaumont Hospital Royal Oak, Henry Ford Health Hospital and University of Michigan Health System. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Marshall B. Sack see patients?
Medicare's clinician data lists 1 practice location in Novi, MI. Call before your visit to confirm the address.
What is Marshall B. Sack's specialty?
Medicare lists General Practice as the primary specialty.
Does Marshall B. Sack accept Medicare assignment?
Yes. Medicare's clinician data says Marshall B. Sack accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Marshall B. Sack offer telehealth?
Medicare's clinician data says Marshall B. Sack offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Marshall B. Sack?
(248) 476-0035, as listed in official Medicare / NPI Registry data.
What is Marshall B. Sack's NPI number?
1629071170. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marshall B. Sack works

Medicare's Facility Affiliation Data lists Marshall B. Sack at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Marshall B. Sack is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Marshall B. Sack as a member of this group (CMS data updated 2026-10-02).

  • Family Care Physicians, P.C.6 clinicians in the group

Specialties

Find other General Practice doctors in Michigan →

Other general practitioners in Michigan

Clinicians with the same Medicare primary specialty in Michigan — not a recommendation.

All general practitioners in Michigan →

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Human Medicine
Graduation year1978
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1629071170
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians