Robert Chatalbash, MD
NPI 1770696197 · Gastroenterology Physician · Bay Shore, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Chatalbash, MD is a Gastroenterology Physician provider in Bay Shore, NY (NPI 1770696197).
Provider details
- NPI number
- 1770696197
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1640901 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
635 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 162 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 132 | $146 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 94 | $148 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 65 | $194 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 41 | $130 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 366 | 98 |
| Omeprazole | 301 | 90 |
| Dicyclomine Hcl | 133 | 41 |
| Famotidine | 111 | 29 |
| Linaclotidebrand: Linzess | 59 | 22 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 56 | 56 |
| Sucralfate | 49 | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-17
- Last updated
- 2010-02-16
Frequently asked questions
- What is Robert Chatalbash's NPI number?
- Robert Chatalbash's National Provider Identifier (NPI) is 1770696197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Chatalbash's specialty?
- Robert Chatalbash is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Chatalbash located?
- Robert Chatalbash's practice location on file with NPPES is 375 East Main Street, Bay Shore, NY 11706.
- What is Robert Chatalbash's phone number?
- The practice phone number listed in the NPPES registry for Robert Chatalbash is (631) 968-8288.
- Does Robert Chatalbash accept Medicare?
- Robert Chatalbash is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Chatalbash's NPI active?
- Yes — Robert Chatalbash's NPI (1770696197) is active in the NPPES registry as of the last update on 2010-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.