MARCUS E KOSS (M.D.) – Family Medicine Physician, NPI 1750300679
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,418 FAMILY PRACTICE in MI
Provider Addresses for MARCUS E KOSS (M.D.)
21603 E 11 MILE RD
SAINT CLAIR SHORES, MI 480811636
Phone: (586) 280-2100
Fax: (833) 496-1920
Type: Mailing
32805, Wing Lake Road, Shirley Farms, Franklin, Southfield Township, Oakland County, Michigan, 48025, United States
FRANKLIN, MI 480251934
Phone: (248) 345-5875
Type: Mailing
25509, Kelly Road, Roseville, Macomb County, Michigan, 48066, United States
SUITE A
ROSEVILLE, MI 480665823
Phone: (586) 443-7600
Fax: (586) 443-7611
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2005-06-09
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 |
|---|---|---|---|---|
| I20050609001035 | I | Family Practice | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 34 | 16 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 25 | 18 | $0 |
Insurance plans in this area (ZIP 48081)
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