Doctor profile · Federal record
Dr. Alexander Johnson, M.D.
Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Dubuque, IA
- NPI 1023077559
- Accepts Medicare
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1515 Delhi St, Suite 100
Dubuque, IA 520016320
(563) 557-9111
fax (563) 589-4046
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- April 6, 2021
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- Iowa #34762
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023077559. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,076
Distinct HCPCS
7
Medicare allowed
$94,158
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 405 | 162 | $74 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 277 | 87 | $46 | |
99239 |
Hospital discharge day management, more than 30 minutes | 164 | 147 | $107 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 106 | 101 | $162 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 79 | 78 | $121 | |
99291 |
Critical care, first 30-74 minutes | 26 | 17 | $198 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 19 | 14 | $111 |
In context: peer comparison
Among 5 peers in Dubuque Hospitalist Physician, average services per provider: 129. This provider delivers 8.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
306
Patients
144
Total drug cost
$12,058
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 57 | 17 | $515 |
| Atorvastatin Calcium | Generic | 31 | 0 | $505 |
| Prednisone | Generic | 28 | 26 | $59 |
| Eliquis (Apixaban) | Brand | 27 | 0 | $9,340 |
| Furosemide | Generic | 24 | 17 | $103 |
| Ondansetron Odt (Ondansetron) | Brand | 19 | 18 | $218 |
| Azithromycin | Generic | 18 | 18 | $60 |
| Cefuroxime (Cefuroxime Axetil) | Brand | 15 | 15 | $164 |
| Diltiazem 24Hr ER (Cd) (Diltiazem Hcl) | Brand | 15 | 0 | $621 |
| Lisinopril | Generic | 14 | 11 | $77 |
Frequently asked questions
What is Dr. Alexander Johnson's medical specialty?
Dr. Alexander Johnson practices Hospitalist Physician in Dubuque, IA.
Where does Dr. Alexander Johnson practice?
Dr. Alexander Johnson practices at 1515 Delhi St, Dubuque, IA 520016320. Office phone: 5635579111.
What is Dr. Alexander Johnson's NPI?
Dr. Alexander Johnson's National Provider Identifier (NPI) is 1023077559, issued by NPPES.
Does Dr. Alexander Johnson accept Medicare assignment?
Yes. Dr. Alexander Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Johnson commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.