MARK WILLIAM NIEMER (M.D.) – Rheumatology Physician, NPI 1275585259
Rheumatology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
61 RHEUMATOLOGY in IA
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Provider Addresses for MARK WILLIAM NIEMER (M.D.)
Medical Associates Clinic, 1500, Associates Drive, Dubuque, Dubuque County, Iowa, 52002, United States
DUBUQUE, IA 520022201
Phone: (563) 584-4100
Fax: (563) 584-4110
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)
CMS reports 2 Open Payments records for all available years, with a total value of $42.
Total Amount is formed as General ($42) + Research ($0) + Ownership ($0) = $42.
Last reported payment date: 2023-09-19 • Largest payer in this snapshot: UCB, Inc. ($24).
Total Amount
$42
General + Research + Ownership
Payments
2
Total payment records
General Amount
$42
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| UCB, Inc. | $24 |
| Organon LLC | $18 |
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: 2004-05-05
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 |
|---|---|---|---|---|
| I20040505001369 | I | Rheumatology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 83 | 62 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 78 | 55 | $0 |
| 86140 | Measurement c-reactive protein for detection of infection or inflammation | 53 | 41 | $0 |
| 82565 | Blood creatinine level | 50 | 39 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 48 | 35 | $0 |
Insurance plans in this area (ZIP 52002)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| RHEUMATOLOGY | IA | 20610 | Aspiration and/or injection of large joint or joint capsule | 58 | 32 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IA | |
| - | IA | |
| Nurse Practitioner | IA | |
| - | IA | |
| N E U R O L O G Y | IA | |
| Hospitalist, Family Practice | IA | |
| - | IA | |
| A N E S T H E S I O L O G Y | IA | |
| Thoracic Surgery, General Surgery | IA | |
| Nurse Practitioner | IA |
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