Grand Street Gastroenterology, Inc.
NPI 1831259795 · Ambulatory Surgical Clinic/Center · Kingston, NY
Enrolled with Medicare as Part B Supplier - Ambulatory Surgical Center · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grand Street Gastroenterology, Inc. is a Ambulatory Surgical Clinic/Center organization in Kingston, NY (NPI 1831259795).
Provider details
- NPI number
- 1831259795
- Entity type
- Organization
- Primary specialty
- Ambulatory Surgical Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Stephanie Clearwater, Office Mgr./Administrator(845) 853-8106
- License
- 5501209R (NY)
Specialties & taxonomies
Ambulatory Health Care Facilities
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
362 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 133 | $342 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 94 | $471 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 58 | $552 |
| Removal of Polyps Or Growths of Esophagus, Stomach, And/Or Upper Small Bowel Using an Endoscope With Mechanical Snare43251 | 41 | $738 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 36 | $431 |
Typical Medicare-allowed amounts for these services range $342–$738 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2021-05-20
- Certified
- 2021-05-20
Frequently asked questions
- What is Grand Street Gastroenterology, Inc.'s NPI number?
- Grand Street Gastroenterology, Inc.'s National Provider Identifier (NPI) is 1831259795, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Grand Street Gastroenterology, Inc.?
- Grand Street Gastroenterology, Inc. is classified in the NPPES registry as Ambulatory Surgical Clinic/Center (Ambulatory Health Care Facilities).
- Where is Grand Street Gastroenterology, Inc. located?
- Grand Street Gastroenterology, Inc.'s practice location on file with NPPES is 33 Grand St, Kingston, NY 12401-3933.
- What is Grand Street Gastroenterology, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Grand Street Gastroenterology, Inc. is (845) 853-8106.
- Does Grand Street Gastroenterology, Inc. accept Medicare?
- Grand Street Gastroenterology, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Grand Street Gastroenterology, Inc.?
- The authorized official listed on Grand Street Gastroenterology, Inc.'s NPPES record is Stephanie Clearwater, Office Mgr./Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Grand Street Gastroenterology, Inc.'s NPI active?
- Yes — Grand Street Gastroenterology, Inc.'s NPI (1831259795) is active in the NPPES registry as of the last update on 2021-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.