Lyndon Hernandez, MD
NPI 1831166503 · Gastroenterology Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lyndon Hernandez, MD is a Gastroenterology Physician provider in Milwaukee, WI (NPI 1831166503).
Provider details
- NPI number
- 1831166503
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34928-20 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
724 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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 171 | $100 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 145 | $54 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 118 | $213 |
| Insertion of Guide Wire With Dilation of Esophagus Using a Flexible Endoscope43248 | 64 | $117 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 37 | $160 |
| 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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 469 | 154 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 232 | 231 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 223 | 219 |
| Omeprazole | 179 | 61 |
| Linaclotidebrand: Linzess | 78 | 25 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 72 | 71 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$128 across 1 record (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
- 2006-03-02
- Last updated
- 2026-01-26
- Certified
- 2026-01-26
Frequently asked questions
- What is Lyndon Hernandez's NPI number?
- Lyndon Hernandez's National Provider Identifier (NPI) is 1831166503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lyndon Hernandez's specialty?
- Lyndon Hernandez is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Lyndon Hernandez located?
- Lyndon Hernandez's practice location on file with NPPES is 2801 W Kinnickinnic River Pkwy Ste 1080, Milwaukee, WI 53215-3689.
- What is Lyndon Hernandez's phone number?
- The practice phone number listed in the NPPES registry for Lyndon Hernandez is (414) 908-6506.
- Does Lyndon Hernandez accept Medicare?
- Lyndon Hernandez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lyndon Hernandez's NPI active?
- Yes — Lyndon Hernandez's NPI (1831166503) is active in the NPPES registry as of the last update on 2026-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.