Nanlong Liu, M.D.
NPI 1619395977 · Gastroenterology Physician · Louisville, KY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nanlong Liu, M.D. is a Gastroenterology Physician provider in Louisville, KY (NPI 1619395977).
Provider details
- NPI number
- 1619395977
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 50046 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
1,233 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 50 Minutes99233 | 333 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 141 | $160 |
| Removal of Stone Or Debris From Bile Or Pancreatic Duct Using a Flexible Endoscope43264 | 83 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $117 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 62 | $72 |
| Insertion of Stent Into Pancreatic Or Bile Duct Using a Flexible Endoscope43274 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 79 | 72 |
| Pantoprazole Sodium | 37 | 21 |
| Lipase/Protease/Amylasebrand: Creon | 17 | — |
| Omeprazole | 14 | — |
| Rifaximinbrand: Xifaxan | 14 | — |
| Ciprofloxacin Hcl | 13 | 13 |
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 , 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$924 across 11 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
- 2014-04-03
- Last updated
- 2021-10-07
- Certified
- 2021-10-07
Frequently asked questions
- What is Nanlong Liu's NPI number?
- Nanlong Liu's National Provider Identifier (NPI) is 1619395977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nanlong Liu's specialty?
- Nanlong Liu is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Nanlong Liu located?
- Nanlong Liu's practice location on file with NPPES is 401 E Chestnut St Unit 310, Louisville, KY 40202-5703.
- What is Nanlong Liu's phone number?
- The practice phone number listed in the NPPES registry for Nanlong Liu is (502) 588-4600.
- Does Nanlong Liu accept Medicare?
- Nanlong Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nanlong Liu's NPI active?
- Yes — Nanlong Liu's NPI (1619395977) is active in the NPPES registry as of the last update on 2021-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.