Larry Siu, MD
NPI 1972765675 · Gastroenterology Physician · West Orange, NJ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larry Siu, MD is a Gastroenterology Physician provider in West Orange, NJ (NPI 1972765675).
Provider details
- NPI number
- 1972765675
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- LP01440 (RI)
Specialties & taxonomies
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
1,813 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 | 258 | $85 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 242 | $99 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 233 | $101 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 173 | $263 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 141 | $127 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 131 | 41 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 111 | 109 |
| Omeprazole | 99 | 42 |
| Mesalamine | 37 | — |
| Budesonidebrand: Budesonide Dr | 35 | 12 |
| Ursodiol | 33 | — |
| Vedolizumabbrand: Entyvio | 31 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,814 across 116 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
- 2008-06-25
- Last updated
- 2015-10-12
Frequently asked questions
- What is Larry Siu's NPI number?
- Larry Siu's National Provider Identifier (NPI) is 1972765675, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Siu's specialty?
- Larry Siu is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Siu located?
- Larry Siu's practice location on file with NPPES is 101 Old Short Hills Rd Ste 217, West Orange, NJ 07052-1023.
- What is Larry Siu's phone number?
- The practice phone number listed in the NPPES registry for Larry Siu is (973) 731-4600.
- Does Larry Siu accept Medicare?
- Larry Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Larry Siu's NPI active?
- Yes — Larry Siu's NPI (1972765675) is active in the NPPES registry as of the last update on 2015-10-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.