John Horlander, MD
NPI 1649254764 · Gastroenterology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Horlander, MD is a Gastroenterology Physician provider in Louisville, KY (NPI 1649254764).
Provider details
- NPI number
- 1649254764
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 36370 (KY)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,148 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 205 | $231 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 185 | $78 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 94 | $72 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 92 | $101 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 80 | $58 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 36 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 380 | 114 |
| Omeprazole | 225 | 75 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 169 | 167 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 159 | 158 |
| Esomeprazole Magnesium | 105 | 36 |
| Dicyclomine Hcl | 103 | 33 |
| Famotidine | 87 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,124 across 173 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 (2)
- 170 Dr Arla Way Ste 101Louisville, KY 40229-5427Phone: (502) 888-1988
- 438 Adam Shepherd PkwyShepherdsville, KY 40165-6742Phone: (502) 888-1988
Registry dates
- Enumerated
- 2005-12-01
- Last updated
- 2026-02-16
- Certified
- 2026-02-16
Frequently asked questions
- What is John Horlander's NPI number?
- John Horlander's National Provider Identifier (NPI) is 1649254764, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Horlander's specialty?
- John Horlander is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Horlander located?
- John Horlander's practice location on file with NPPES is 1941 Bishop Ln Ste 200, Louisville, KY 40218-1973.
- What is John Horlander's phone number?
- The practice phone number listed in the NPPES registry for John Horlander is (502) 888-1988.
- Does John Horlander accept Medicare?
- John Horlander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Horlander's NPI active?
- Yes — John Horlander's NPI (1649254764) is active in the NPPES registry as of the last update on 2026-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.