ANTHONY KOO (MD) – Anesthesiology Physician, NPI 1982897146
Anesthesiology Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,266 ANESTHESIOLOGY in WI
Provider Addresses for ANTHONY KOO (MD)
1000 N OAK AVE
MARSHFIELD, WI 544495703
Phone: (715) 387-5511
Type: Location
16658 N 108TH ST
SCOTTSDALE, AZ 852559070
Phone: (847) 452-0793
Type: Mailing
Viad Corporate Center, 1850, North Central Avenue, Encanto, Phoenix, Maricopa County, Arizona, 85004-4527, United States
SUITE 1600
PHOENIX, AZ 850044527
Phone: (602) 262-8900
Fax: (602) 262-8890
Type: Mailing
1919 E THOMAS RD
PHOENIX, AZ 850167710
Phone: (602) 933-1000
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: 2012-08-14
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 |
|---|---|---|---|---|
| I20110810000279 | I | Anesthesiology | WI | TBD |
| I20120814000241 | I | Anesthesiology | AZ | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 54449)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | AZ | |
| - | AZ | |
| - | AZ | |
| A N E S T H E S I O L O G Y | AZ | |
| - | AZ | |
| - | IL | |
| - | CA | |
| - | AZ | |
| Emergency Medicine, Pediatric Medicine | AZ | |
| - | AZ |
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