MICHAEL A MARSHALL (MD) – Internal Medicine Physician, NPI 1487654091
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
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Provider Addresses for MICHAEL A MARSHALL (MD)
15990, West 9 Mile Road, Southfield, Oakland County, Michigan, 48075, United States
SOUTHFIELD, MI 480754826
Phone: (248) 849-4226
Fax: (248) 849-4240
Type: Mailing
22255, Greenfield Road, Southfield, Oakland County, Michigan, 48075, United States
410
SOUTHFIELD, MI 480753710
Phone: (248) 849-2850
Fax: (248) 849-5751
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $59.
Total Amount is formed as General ($59) + Research ($0) + Ownership ($0) = $59.
Last reported payment date: 2024-02-02 • Largest payer in this snapshot: Axsome Therapeutics, Inc. ($44).
Total Amount
$59
General + Research + Ownership
Payments
3
Total payment records
General Amount
$59
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Axsome Therapeutics, Inc. | $44 |
| PFIZER INC. | $15 |
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: 2010-04-22
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 |
|---|---|---|---|---|
| I20100422000827 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 94 | 58 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 61 | 46 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 44 | 44 | $0 |
Insurance plans in this area (ZIP 48075)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MI | |
| Nurse Practitioner | MI | |
| - | MI | |
| Nurse Practitioner | ME | |
| Internal Medicine | MI | |
| E N D O C R I N O L O G Y | MI | |
| - | MI | |
| - | MI | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | MI | |
| Internal Medicine | MI |
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