DR. GREGORY RICHARD GROTZ (M.D.) – Diagnostic Radiology Physician, NPI 1033189105
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
434 DIAGNOSTIC RADIOLOGY in IA
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Provider Addresses for DR. GREGORY RICHARD GROTZ (M.D.)
Finley Hospital, 350, North Grandview Avenue, Dubuque, Dubuque County, Iowa, 52001, United States
DUBUQUE, IA 520016392
Phone: (563) 582-1881
Fax: (563) 589-2491
Type: Location
1875, University Avenue, Dubuque, Dubuque County, Iowa, 52001, United States
PO BOX 1655
DUBUQUE, IA 520041655
Phone: (563) 556-6895
Fax: (563) 556-3618
Type: Mailing
118 NORTHPORT AVE
BELFAST, ME 049156009
Phone: (207) 784-2554
Fax: (207) 777-1439
Type: Location
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: 2013-01-28
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 |
|---|---|---|---|---|
| I20130128000056 | I | Diagnostic Radiology | ME | 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 |
|---|---|---|---|---|
| 71046 | X-ray of chest, 2 views | 424 | 346 | $0 |
| 71045 | X-ray of chest, 1 view | 410 | 287 | $0 |
| 74177 | Ct scan of abdomen and pelvis with contrast | 297 | 228 | $0 |
| 77063 | Screening 3d breast mammography | 277 | 277 | $0 |
| 77067 | Screening mammography | 277 | 277 | $0 |
Insurance plans in this area (ZIP 52001)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | IA | 71250 | CT scan chest | 95 | 91 |
| DIAGNOSTIC RADIOLOGY | IA | 73110 | X-ray of wrist, minimum of 3 views | 66 | 48 |
| DIAGNOSTIC RADIOLOGY | IA | 76830 | Ultrasound pelvis through vagina | 17 | 17 |
| DIAGNOSTIC RADIOLOGY | IA | 78815 | Nuclear medicine study with CT imaging skull base to mid-thigh | 18 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | ME |
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