Wallace Wang, M.D.
NPI 1598924805 · Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wallace Wang, M.D. is a Gastroenterology Physician provider in New York, NY (NPI 1598924805).
Provider details
- NPI number
- 1598924805
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 257569 (NY)
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
18 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
269 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 83 | $136 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 45 | $144 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 29 | $264 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $178 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 25 | $117 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 698 | 191 |
| Omeprazole | 543 | 196 |
| Pantoprazole Sodium | 229 | 78 |
| Esomeprazole Magnesium | 137 | 42 |
| Linaclotidebrand: Linzess | 90 | 22 |
| Tenofovir Alafenamidebrand: Vemlidy | 86 | 12 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 85 | 84 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24,232 across 67 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
- 2008-06-03
- Last updated
- 2017-01-03
Frequently asked questions
- What is Wallace Wang's NPI number?
- Wallace Wang's National Provider Identifier (NPI) is 1598924805, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wallace Wang's specialty?
- Wallace Wang is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Wallace Wang located?
- Wallace Wang's practice location on file with NPPES is 17 Elizabeth St, New York, NY 10013-4803.
- What is Wallace Wang's phone number?
- The practice phone number listed in the NPPES registry for Wallace Wang is (212) 219-8031.
- Does Wallace Wang accept Medicare?
- Wallace Wang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wallace Wang's NPI active?
- Yes — Wallace Wang's NPI (1598924805) is active in the NPPES registry as of the last update on 2017-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.