Brian Medernach, BRIAN MEDERNACH
NPI 1801050539 · Internal Medicine Physician · Lombard, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Medernach, BRIAN MEDERNACH is a Internal Medicine Physician provider in Lombard, IL (NPI 1801050539).
Provider details
- NPI number
- 1801050539
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- BRIAN MEDERNACH
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036.126376 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,243 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 539 | $81 |
| Removal of Skin and Tissue, 20.0 Sq Cm Or Less11042 | 183 | $64 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 103 | $178 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 100 | $76 |
| Critical Care, First 30-74 Minutes99291 | 90 | $222 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 89 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ertapenem Sodiumbrand: Ertapenem | 68 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 61 | 26 |
| Meropenem | 54 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 53 | 21 |
| Doxycycline Hyclate | 52 | 26 |
| Vancomycin Hcl | 50 | — |
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$56 across 2 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
Registry dates
- Enumerated
- 2008-07-11
- Last updated
- 2026-04-08
- Certified
- 2026-04-08
Frequently asked questions
- What is Brian Medernach's NPI number?
- Brian Medernach's National Provider Identifier (NPI) is 1801050539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Medernach's specialty?
- Brian Medernach is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Medernach located?
- Brian Medernach's practice location on file with NPPES is 1s072 Luther Ave, Lombard, IL 60148-4164.
- What is Brian Medernach's phone number?
- The practice phone number listed in the NPPES registry for Brian Medernach is (630) 247-8877.
- Does Brian Medernach accept Medicare?
- Brian Medernach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Medernach's NPI active?
- Yes — Brian Medernach's NPI (1801050539) is active in the NPPES registry as of the last update on 2026-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.