David Letzer, MD
NPI 1255382529 · Infectious Disease Physician · Brookfield, WI
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Letzer, MD is a Infectious Disease Physician provider in Brookfield, WI (NPI 1255382529).
Provider details
- NPI number
- 1255382529
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 30311-021 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
453 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 110 | $160 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $120 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 90 | $58 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 68 | $73 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 53 | $84 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 115 | 28 |
| Amoxicillin | 107 | 39 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 60 | — |
| Cefadroxil | 53 | 14 |
| Doxycycline Monohydrate | 52 | 24 |
| Vancomycin Hcl | 51 | — |
| Ertapenem Sodiumbrand: Ertapenem | 44 | 11 |
| Rifampin | 43 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$499 across 30 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1818 N Meade StAppleton, WI 54911-3454Phone: (920) 831-1841Fax: (920) 831-1834
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2025-01-23
- Certified
- 2025-01-23
Frequently asked questions
- What is David Letzer's NPI number?
- David Letzer's National Provider Identifier (NPI) is 1255382529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Letzer's specialty?
- David Letzer is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is David Letzer located?
- David Letzer's practice location on file with NPPES is 150 S Sunny Slope Rd Ste 136, Brookfield, WI 53005-4858.
- What is David Letzer's phone number?
- The practice phone number listed in the NPPES registry for David Letzer is (262) 786-4550.
- Does David Letzer accept Medicare?
- David Letzer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Letzer's NPI active?
- Yes — David Letzer's NPI (1255382529) is active in the NPPES registry as of the last update on 2025-01-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.