DR. ANDREW THOMAS GERSTNER (M.D.) – Anesthesiology Physician, NPI 1629413232
Anesthesiology Physician
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Profile Insights
NPPES metrics only — not quality of care.
1,266 ANESTHESIOLOGY in WI
Provider Addresses for DR. ANDREW THOMAS GERSTNER (M.D.)
601 MARSHALL AVE
SOUTH MILWAUKEE, WI 531722720
Phone: (414) 491-3408
Type: Mailing
10101 S 27TH ST
FRANKLIN, WI 531327209
Phone: (414) 325-4700
Type: Location
739 N ADA ST APT 404
CHICAGO, IL 606426022
Phone: (414) 491-3408
Type: Mailing
4646 N MARINE DR
CHICAGO, IL 606405759
Phone: (773) 878-8700
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.
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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: 2022-06-06
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 |
|---|---|---|---|---|
| I20170807003566 | I | Anesthesiology | OR | TBD |
| I20220606001670 | I | Anesthesiology | IN | 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 |
|---|---|---|---|---|
| 64447 | Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 31 | 31 | $0 |
| 01402 | Anesthesia for procedure for total knee joint replacement | 18 | 18 | $0 |
| 00670 | Anesthesia for extensive surgery on spine | 17 | 17 | $0 |
Insurance plans in this area (ZIP 53172)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Anesthesiology, Pain Management, Anesthesiology | IN | |
| - | IN | |
| Certified Registered Nurse Anesthetist (Crna) | IN |
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