DR. ANTONIO SANTIAGO-AGOSTINI (MD) – Internal Medicine Physician, NPI 1801834445
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
Provider Addresses for DR. ANTONIO SANTIAGO-AGOSTINI (MD)
300 HEALTH PARK DR STE 302
OWOSSO, MI 488671293
Phone: (989) 723-5540
Fax: (989) 720-2292
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 1 Open Payments records for all available years, with a total value of $16.
Total Amount is formed as General ($16) + Research ($0) + Ownership ($0) = $16.
Last reported payment date: 2024-07-30 • Largest payer in this snapshot: Novo Nordisk Inc ($16).
Total Amount
$16
General + Research + Ownership
Payments
1
Total payment records
General Amount
$16
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $16 |
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: 2006-04-26
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 |
|---|---|---|---|---|
| I20060426000064 | 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 | 350 | 171 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 45 | 39 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 16 | 16 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 12 | 12 | $0 |
Insurance plans in this area (ZIP 48867)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MI | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 32 | 30 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | MI | |
| A N E S T H E S I O L O G Y | IL | |
| Internal Medicine | MI | |
| Nurse Practitioner | MI | |
| - | MI | |
| Physician Assistant | MI | |
| - | MI | |
| Nurse Practitioner | MI | |
| Internal Medicine, Geriatric Medicine | MI | |
| Physician Assistant | MI |
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