Stanley Hsu, M.D.
NPI 1992939235 · Gastroenterology Physician · Princeton, NJ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stanley Hsu, M.D. is a Gastroenterology Physician provider in Princeton, NJ (NPI 1992939235).
Provider details
- NPI number
- 1992939235
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD447293 (PA)
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,752 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 408 | $98 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 380 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 274 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 180 | $8 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 73 | $140 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 389 | 130 |
| Famotidine | 366 | 114 |
| Lipase/Protease/Amylasebrand: Creon | 122 | 26 |
| Mesalamine | 105 | 24 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 53 | 53 |
| Ursodiol | 39 | 11 |
| Linaclotidebrand: Linzess | 35 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$360 across 13 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)
- 2 Research WayMonroe Township, NJ 08831-6816Phone: (609) 924-9300
- 3 Liberty StPlainsboro, NJ 08536-2084Phone: (609) 924-9300
Registry dates
- Enumerated
- 2009-05-13
- Last updated
- 2018-09-06
Frequently asked questions
- What is Stanley Hsu's NPI number?
- Stanley Hsu's National Provider Identifier (NPI) is 1992939235, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stanley Hsu's specialty?
- Stanley Hsu is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Stanley Hsu located?
- Stanley Hsu's practice location on file with NPPES is 419 N Harrison St Ste 101, Princeton, NJ 08540.
- What is Stanley Hsu's phone number?
- The practice phone number listed in the NPPES registry for Stanley Hsu is (099) 249-3006.
- Does Stanley Hsu accept Medicare?
- Stanley Hsu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stanley Hsu's NPI active?
- Yes — Stanley Hsu's NPI (1992939235) is active in the NPPES registry as of the last update on 2018-09-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.