NPPES file of Aug 9, 2026

Isaac J. Trejo, D.P.M.

Podiatrist · Milwaukee, WI

Isaac J. Trejo, D.P.M. is a podiatrist with a practice address in Milwaukee, Wisconsin, and NPI 1023009891, issued on Nov 2, 2005. Check the license (Wisconsin 708, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023009891
Name
Isaac J. Trejo
Credential
D.P.M.
Primary taxonomy
Podiatrist 213E00000X
License number
708 WI
Self-reported in NPPES; status is on the state search
Practice location
4100 S Howell Ave, Milwaukee, WI 53207
Phone
(414) 483-5566
Enumerated
Nov 2, 2005
Record last updated
Feb 21, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(866) 263-5456
Medicaid ID
43220700 WI
Medicare enrollment
Enrolled (PECOS I20040503000995); accepts Medicare assignment
Medical or professional school
William M. Scholl College Of Podiatric Medicine, 1993
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 4100 S Howell Ave

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

  1. Patrick Krzyzewski, DPMPodiatrist1053496067

Verify Isaac J. Trejo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 708
    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
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90% fewer Medicare Part D claims than the average podiatrist in 2024

32 Medicare Part D claims for 13 beneficiaries, against an average of 314 among the 6,407 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 12 claims were for opioids.

  1. Isaac Trejo32
  2. Specialty average314

Most prescribed

  1. Oxycodone Hcl11 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.

The MIPS final score for 2023 (Medicare payment program): 92.1 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score69.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Isaac J. Trejo among 212 podiatrist records in Wisconsin

Isaac J. Trejo, D.P.M. is one of 212 podiatrist records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1993 · median 2002 among the 154 with a school on file
  • Record last updated2008 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 213E00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Podiatrist providers in Wisconsin

There are 212 podiatrist records in Wisconsin.

The 8 podiatrist records with the nearest ZIP codes

  1. Patrick Krzyzewski, DPMMilwaukee, WI 532071053496067
  2. John Schuller, DPMMilwaukee, WI 532091104846229
  3. Tahir Khan, DPMMilwaukee, WI 532101073880936
  4. Warren McIver, DPMMilwaukee, WI 532041174529671
  5. Jason Boudreau, D.P.M.Milwaukee, WI 532111518959378
  6. Vanessa Scoarste, DPMMilwaukee, WI 532111306530985
  7. Nicholas Williams, DPMMilwaukee, WI 532111861912669
  8. Valeria Hairston, DPMMilwaukee, WI 532121669445037

Common questions

What is Isaac J. Trejo, D.P.M.'s NPI number?

Isaac J. Trejo, D.P.M.'s National Provider Identifier (NPI) is 1023009891, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Isaac J. Trejo, D.P.M. located?

The NPPES record lists a practice address at 4100 S Howell Ave, Milwaukee, WI, 53207. Phone: (414) 483-5566. Providers update this record themselves, so call before visiting.

How can I verify Isaac J. Trejo, D.P.M.'s license?

NPPES lists Wisconsin license number 708, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Isaac J. Trejo, D.P.M. prescribe under Medicare Part D?

In 2024, Isaac J. Trejo, D.P.M. had 32 Medicare Part D claims for 13 beneficiaries; the average among podiatrist prescribers was 314. Part D covers Medicare prescriptions only.

What is Isaac J. Trejo, D.P.M.'s MIPS final score?

The 2023 MIPS final score is 92.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.