Doctor profile · Federal record
Dr. Mark Niemer, M.D.
Rheumatology Physician (CMS: Rheumatology) · Rheumatology Physician · Dubuque, IA
- NPI 1275585259
- Accepts Medicare
- 41 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1500 Associates Dr
Dubuque, IA 520022201
(563) 584-4460
fax (563) 584-4395
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- September 8, 2010
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State licenses (2)
- Iowa #28785 · Wisconsin #37106
- Medicaid
- IA #0083279
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275585259. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
497
Distinct HCPCS
10
Medicare allowed
$16,649
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 83 | 62 | $119 | |
36415 |
Insertion of needle into vein for collection of blood sample | 78 | 55 | $8 | |
86140 |
Measurement c-reactive protein for detection of infection or inflammation | 53 | 41 | $5 | |
82565 |
Blood creatinine level | 50 | 39 | $5 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 48 | 35 | $8 | |
84450 |
Liver enzyme (sgot), level | 39 | 28 | $5 | |
82040 |
Albumin (protein) level | 31 | 22 | $5 | |
85652 |
Red blood cell sedimentation rate, to detect inflammation, automated | 28 | 23 | $3 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 27 | 26 | $84 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 19 | 12 | $106 |
In context: peer comparison
Among 1 peers in Dubuque Rheumatology Physician, average services per provider: 38. This provider delivers 13× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,221
Patients
412
Total drug cost
$37,680
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 284 | 96 | $12,811 |
| Prednisone | Generic | 272 | 92 | $2,808 |
| Hydroxychloroquine Sulfate | Generic | 135 | 43 | $10,272 |
| Alendronate Sodium | Generic | 128 | 37 | $1,560 |
| Allopurinol | Generic | 77 | 29 | $1,049 |
| Gabapentin | Generic | 76 | 27 | $1,159 |
| Leflunomide | Generic | 45 | 17 | $3,606 |
| Meloxicam | Generic | 37 | 15 | $412 |
| Celecoxib | Generic | 34 | 16 | $1,107 |
| Duloxetine Hcl | Generic | 34 | 15 | $1,669 |
Frequently asked questions
What is Dr. Mark Niemer's medical specialty?
Dr. Mark Niemer practices Rheumatology Physician in Dubuque, IA.
Where does Dr. Mark Niemer practice?
Dr. Mark Niemer practices at 1500 Associates Dr, Dubuque, IA 520022201. Office phone: 5635844460.
What is Dr. Mark Niemer's NPI?
Dr. Mark Niemer's National Provider Identifier (NPI) is 1275585259, issued by NPPES.
Does Dr. Mark Niemer accept Medicare assignment?
Yes. Dr. Mark Niemer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Niemer commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Measurement c-reactive protein for detection of infection or inflammation (HCPCS 86140). Source: CMS Medicare Physician & Other Practitioners file.