Arthur Walczyk, MD
NPI 1003800723 · Gastroenterology Physician · Poughkeepsie, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Walczyk, MD is a Gastroenterology Physician provider in Poughkeepsie, NY (NPI 1003800723).
Provider details
- NPI number
- 1003800723
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 174866 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
823 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 | 194 | $136 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 126 | $178 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 123 | $123 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 53 | $162 |
| Ultrasound Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope Through Mouth43237 | 52 | $201 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 166 | 162 |
| Omeprazole | 88 | 38 |
| Pantoprazole Sodium | 28 | — |
| Mercaptopurine | 23 | — |
| Ondansetronbrand: Ondansetron Odt | 16 | — |
| Sucralfate | 16 | — |
| Ursodiol | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$534 across 24 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 (1)
- 1 Webster AveSuite 303Poughkeepsie, NY 12601-1361Phone: (845) 452-9800Fax: (845) 452-7691
Registry dates
- Enumerated
- 2005-09-08
- Last updated
- 2022-07-21
Frequently asked questions
- What is Arthur Walczyk's NPI number?
- Arthur Walczyk's National Provider Identifier (NPI) is 1003800723, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Walczyk's specialty?
- Arthur Walczyk is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Walczyk located?
- Arthur Walczyk's practice location on file with NPPES is 159 Barnegat Rd Fl 2, Poughkeepsie, NY 12601-5401.
- What is Arthur Walczyk's phone number?
- The practice phone number listed in the NPPES registry for Arthur Walczyk is (845) 452-9800.
- Does Arthur Walczyk accept Medicare?
- Arthur Walczyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Walczyk's NPI active?
- Yes — Arthur Walczyk's NPI (1003800723) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.