NPPES file of Aug 9, 2026

Isidoro V. Zambrano, MD

Orthopaedic Surgery Physician · Fort Atkinson, WI

Isidoro V. Zambrano, MD is an orthopaedic surgery physician with a practice address in Fort Atkinson, Wisconsin, and NPI 1598712663, issued on May 27, 2006. Check the license (Wisconsin 48062-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598712663
Name
Isidoro V. Zambrano
Credential
MD
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
48062-20 WI
Self-reported in NPPES; status is on the state search
Practice location
1504 Madison Ave, Fort Atkinson, WI 53538
Phone
(920) 563-7888
Enumerated
May 27, 2006
Record last updated
Mar 7, 2023
Fax
(920) 563-7741
Medicaid ID
34639300 WI
Medicare enrollment
Enrolled (PECOS I20050723000120); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1504 Madison Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kimberly Beggs, LATAthletic Trainer1316592561
  2. Carter Bernier, DPTPhysical Therapist1528711710
  3. Matthew Bliss, MDOrthopaedic Hand Surgery Physician1255378014
  4. Jacob Braun, DPTOrthopedic Physical Therapist1508572157
  5. Owen Chady, DPTPhysical Therapist1164101788
  6. Clark Collins, PA-CMedical Physician Assistant1760449821

Verify Isidoro V. Zambrano in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 48062-20
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

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61% more Medicare Part D claims than the average orthopaedic surgery physician in 2024

557 Medicare Part D claims for 251 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 132 claims were for opioids.

  1. Isidoro Zambrano557
  2. Specialty average346

Most prescribed

  1. Cephalexin297 claims
  2. Oxycodone-Acetaminophen88 claims
  3. Clindamycin Hcl54 claims
  4. Hydrocodone-Acetaminophen39 claims
  5. Mupirocin26 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $219.22

5 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Isidoro Zambrano$219
  2. Specialty average$23,023

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Fort Healthcare IncFort Atkinson, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Isidoro V. Zambrano among 656 orthopaedic surgery physician records in Wisconsin

Isidoro V. Zambrano, MD is one of 656 orthopaedic surgery physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 41% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2000 · median 2006 among the 401 with a school on file
  • Record last updated2023 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Surgery Physician providers in Wisconsin

There are 656 orthopaedic surgery physician records in Wisconsin.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Thomas Nordland, MDFort Atkinson, WI 535381760470884
  2. Stanley Peterson, MDFort Atkinson, WI 535381992793392
  3. Paul Schuppner, D.O.Fort Atkinson, WI 535381215145206
  4. James Self, M.D.Dodgeville, WI 535331366415895
  5. Ellen Obrien, MDJanesville, WI 535451508321209
  6. Eamon Bernardoni, MDDarlington, WI 535301306342936
  7. Craig Dopf, MDDarlington, WI 535301215991930
  8. Douglas Palmer, MDJanesville, WI 535461427095694

Common questions

What is Isidoro V. Zambrano, MD's NPI number?

Isidoro V. Zambrano, MD's National Provider Identifier (NPI) is 1598712663, issued on May 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Isidoro V. Zambrano, MD located?

The NPPES record lists a practice address at 1504 Madison Ave, Fort Atkinson, WI, 53538. Phone: (920) 563-7888. Providers update this record themselves, so call before visiting.

How can I verify Isidoro V. Zambrano, MD's license?

NPPES lists Wisconsin license number 48062-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Isidoro V. Zambrano, MD prescribe under Medicare Part D?

In 2024, Isidoro V. Zambrano, MD had 557 Medicare Part D claims for 251 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.