Doctor profile · Federal record

Dr. Isidoro Zambrano, MD

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Fort Atkinson, WI

  • NPI 1598712663
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1504 Madison Ave
Fort Atkinson, WI 535383100
(920) 563-7888
fax (920) 563-7741

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
March 7, 2023
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207X00000X — NUCC code
State license (1)
Wisconsin #48062-20
Medicaid
WI #34639300

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598712663. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
783
Distinct HCPCS
10
Medicare allowed
$78,981
HCPCS Description Services Patients Avg allowed
20610 Aspiration and/or injection of fluid from large joint 118 70 $46
99213 Established patient office or other outpatient visit, 20-29 minutes 117 103 $62
99214 Established patient office or other outpatient visit, 30-39 minutes 74 69 $93
73564 X-ray of knee, 4 or more views 73 60 $11
73030 X-ray of shoulder, minimum of 2 views 55 43 $9
73562 X-ray of knee, 3 views 55 44 $9
99212 Established patient office or other outpatient visit, 10-19 minutes 54 51 $34
73502 X-ray of hip, 2-3 views 46 40 $10
99203 New patient office or other outpatient visit, 30-44 minutes 42 42 $78
27447 Replacement of knee joint, both sides of knee 28 28 $1,186

In context: peer comparison

Among 2 peers in this city , average services per provider: 48. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$219
Transactions
5
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Stryker Corporation 1 $57.01
Mindray DS USA, Inc. 1 $56.04
ORTHALIGN INC 1 $42.77
DePuy Synthes Sales Inc. 1 $36.71
Enduromed, Llc 1 $26.69

By nature of payment

Food and Beverage
$219

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
352
Patients
176
Total drug cost
$1,703
Drug Type Claims Patients Total cost
Cephalexin Generic 208 95 $432
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 71 45 $951
Clindamycin Hcl Generic 40 22 $72
Meloxicam Generic 19 0 $106
Mupirocin Generic 14 14 $141

Frequently asked questions

Auto-generated from federal data
What is Dr. Isidoro Zambrano's medical specialty?
Dr. Isidoro Zambrano practices Orthopaedic Surgery Physician in Fort Atkinson, WI.
Where does Dr. Isidoro Zambrano practice?
Dr. Isidoro Zambrano practices at 1504 Madison Ave, Fort Atkinson, WI 535383100. Office phone: 9205637888.
What is Dr. Isidoro Zambrano's NPI?
Dr. Isidoro Zambrano's National Provider Identifier (NPI) is 1598712663, issued by NPPES.
Does Dr. Isidoro Zambrano accept Medicare assignment?
Yes. Dr. Isidoro Zambrano accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Isidoro Zambrano commonly perform?
Top Medicare-reported procedures in 2023: Aspiration and/or injection of fluid from large joint (HCPCS 20610); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.