DR. MICHAEL EDWARD KROHN (D.O.) – Hospitalist Physician, NPI 1124012521
Hospitalist Physician
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Profile Insights
NPPES metrics only — not quality of care.
7,218 INTERNAL MEDICINE in MI
Provider Addresses for DR. MICHAEL EDWARD KROHN (D.O.)
PO BOX 1848
MUSKEGON, MI 494431848
Phone: (231) 727-5211
Fax: (231) 727-4571
Type: Mailing
957 BROOKHAVEN CT
BUILDING E SUITES 3 & 4
MUSKEGON, MI 494423890
Phone: (231) 777-5906
Fax: (231) 773-8904
Type: Location
1560 E SHERMAN BLVD STE 240
MUSKEGON, MI 494441854
Phone: (231) 672-3883
Fax: (231) 672-3973
Type: Mailing
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 $73.
Total Amount is formed as General ($73) + Research ($0) + Ownership ($0) = $73.
Last reported payment date: 2024-08-13 • Largest payer in this snapshot: ABBVIE INC. ($28).
Total Amount
$73
General + Research + Ownership
Payments
3
Total payment records
General Amount
$73
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $28 |
| Alexion Pharmaceuticals, Inc. | $25 |
| Novo Nordisk Inc | $20 |
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: 2010-07-23
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 |
|---|---|---|---|---|
| I20100723000637 | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 458 | 197 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 94 | 92 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 28 | 28 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 25 | 24 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 17 | 12 | $0 |
Insurance plans in this area (ZIP 49443)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MI | 20610 | Aspiration and/or injection of large joint or joint capsule | 13 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Hospitalist | IL | |
| Osteopathic Manipulative Medicine, Emergency Medicine | TX | |
| Hospitalist, Internal Medicine | MI | |
| Clinical Psychologist | CA | |
| Physician Assistant | MI | |
| Physician Assistant | MI | |
| Physician Assistant | MT | |
| Physician Assistant | MI | |
| Internal Medicine | MI | |
| Osteopathic Manipulative Medicine | MI |
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