Isaac Trejo, D.P.M.
NPI 1023009891 · Podiatrist · Milwaukee, WI
Enrolled with Medicare as Practitioner - Podiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Trejo, D.P.M. is a Podiatrist provider in Milwaukee, WI (NPI 1023009891).
Provider details
- NPI number
- 1023009891
- Entity type
- Individual
- Primary specialty
- PodiatristPodiatric Medicine & Surgery Service Providers
- Credential
- D.P.M.
- Sex
- Male
- Sole proprietor
- No
- License
- 708 (WI)
Specialties & taxonomies
Podiatric Medicine & Surgery Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,735 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 | 2,860 | $44 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 637 | $55 |
| Residence Visit for New Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99341 | 179 | $48 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 31 | $39 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 28 | $71 |
Typical Medicare-allowed amounts for these services range $39–$71 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Oxycodone Hcl | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-02
- Last updated
- 2008-02-21
Frequently asked questions
- What is Isaac Trejo's NPI number?
- Isaac Trejo's National Provider Identifier (NPI) is 1023009891, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Trejo's specialty?
- Isaac Trejo is listed in the NPPES registry with a primary specialty of Podiatrist (Podiatric Medicine & Surgery Service Providers).
- Where is Isaac Trejo located?
- Isaac Trejo's practice location on file with NPPES is 4100 S Howell Ave, Milwaukee, WI 53207-4410.
- What is Isaac Trejo's phone number?
- The practice phone number listed in the NPPES registry for Isaac Trejo is (414) 483-5566.
- Does Isaac Trejo accept Medicare?
- Isaac Trejo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Trejo's NPI active?
- Yes — Isaac Trejo's NPI (1023009891) is active in the NPPES registry as of the last update on 2008-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.