DR. ALEXANDER P JOHNSON (M.D.) – Hospitalist Physician, NPI 1023077559
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
414 HOSPITALIST in IA
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Provider Addresses for DR. ALEXANDER P JOHNSON (M.D.)
1515, Delhi Street, Cathedral Square, Dubuque, Dubuque County, Iowa, 52001, United States
SUITE 100
DUBUQUE, IA 520016320
Phone: (563) 557-9111
Fax: (563) 589-4046
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)
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: 2005-09-12
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 |
|---|---|---|---|---|
| I20050912001314 | I | Hospitalist | IA | 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 | 405 | 162 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 277 | 87 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 164 | 147 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 106 | 101 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 79 | 78 | $0 |
Insurance plans in this area (ZIP 52001)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physical Therapist In Private Practice | NE | |
| - | WI | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | IA | |
| N E U R O S U R G E R Y | MN | |
| Hospitalist, Internal Medicine | LA | |
| Nurse Practitioner | IA | |
| Nurse Practitioner | WI | |
| N E U R O L O G Y | IA | |
| H O S P I T A L I S T | IA | |
| Physical Therapist In Private Practice | IA |
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