Anthony Chan, DO
NPI 1457449621 · Gastroenterology Physician · New York, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anthony Chan, DO is a Gastroenterology Physician provider in New York, NY (NPI 1457449621).
Provider details
- NPI number
- 1457449621
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 197396 (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
19 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
337 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 | 104 | $138 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 60 | $130 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 53 | $98 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 41 | $135 |
| Removal of Polyps Or Growths of Esophagus, Stomach, And/Or Upper Small Bowel Using an Endoscope With Mechanical Snare43251 | 36 | $540 |
| Biopsy of Lower Large Bowel Using a Flexible Endoscope45331 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 2,703 | 688 |
| Omeprazole | 1,834 | 441 |
| Hydrocortisonebrand: Procto-Med Hc | 892 | 366 |
| Dicyclomine Hcl | 798 | 303 |
| Hydrocortisone | 759 | 285 |
| Plecanatidebrand: Trulance | 456 | 138 |
| Gabapentin | 403 | 267 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$913 across 40 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
- 2006-10-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Anthony Chan's NPI number?
- Anthony Chan's National Provider Identifier (NPI) is 1457449621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anthony Chan's specialty?
- Anthony Chan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Anthony Chan located?
- Anthony Chan's practice location on file with NPPES is 198 Canal Street, New York, NY 10013.
- What is Anthony Chan's phone number?
- The practice phone number listed in the NPPES registry for Anthony Chan is (212) 219-8010.
- Does Anthony Chan accept Medicare?
- Anthony Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anthony Chan's NPI active?
- Yes — Anthony Chan's NPI (1457449621) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.