GREGORY J GRIEPENTROG (M.D.) – Ophthalmology Physician, NPI 1114991890
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
388 OPHTHALMOLOGY in WI
Provider Addresses for GREGORY J GRIEPENTROG (M.D.)
925 N 87th St
Medical College Clinics at the Eye Institute
Milwaukee, WI 532264812
Phone: (414) 456-2020
Fax: (414) 456-6300
Type: Location
200 1ST ST SW
ROCHESTER, MN 559050001
Phone: (507) 284-2511
Type: Location
925, North 87th Street, Wauwatosa, Milwaukee County, Wisconsin, 53226, United States
MEDICAL COLLEGE CLINICS AT THE EYE INSTITUTE
MILWAUKEE, WI 532264812
Phone: (414) 456-2020
Fax: (414) 456-6300
Type: Mailing
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: 2009-04-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20050816000814 | I | Ophthalmology | MN | TBD |
| I20090420000089 | I | Ophthalmology | WI | 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 |
|---|---|---|---|---|
| 92081 | Exam of visual field with limited testing | 55 | 55 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 55 | 46 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 52 | 52 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 47 | 47 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 43 | 42 | $0 |
Insurance plans in this area (ZIP 53226)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| Psychiatry, Addiction Medicine | MN | |
| - | MN | |
| - | MN | |
| - | MN | |
| - | MN | |
| O P H T H A L M O L O G Y | MN | |
| - | MN | |
| - | MN | |
| - | MN |
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