MICHAEL C. PROSTKO (M.D.) – Internal Medicine Physician, NPI 1114955945
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,527 INTERNAL MEDICINE in TN
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Provider Addresses for MICHAEL C. PROSTKO (M.D.)
PO BOX 11431
CHATTANOOGA, TN 374012431
Phone:
Type: Mailing
CHI Memorial Hospital, 2525, Desales Avenue, Glenwood, Ridgeside, Chattanooga, Hamilton County, Tennessee, 37404, United States
CHATTANOOGA, TN 374041161
Phone: (423) 595-7158
Fax: (423) 702-6986
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: 2020-09-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20050225000418 | I | Hospitalist | TN | TBD |
| I20200909001283 | I | Hospitalist | KY | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 323 | 132 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 297 | 129 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 171 | 166 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 110 | 109 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 14 | 14 | $0 |
Insurance plans in this area (ZIP 37401)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | NJ | |
| - | KY | |
| Nurse Practitioner | KY | |
| Emergency Medicine | KY | |
| Internal Medicine, Hospitalist, Internal Medicine | CT | |
| Internal Medicine | KY | |
| Hospitalist, Internal Medicine | KY | |
| Internal Medicine | AL | |
| Internal Medicine | IA | |
| Hospitalist, Internal Medicine | NY |
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