Ashby Thomas, M.D.
NPI 1366767154 · Gastroenterology Physician · New Hyde Park, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashby Thomas, M.D. is a Gastroenterology Physician provider in New Hyde Park, NY (NPI 1366767154).
Provider details
- NPI number
- 1366767154
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 263731 (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
16 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
648 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 183 | $148 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 69 | $195 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 51 | $514 |
| Stool Analysis for Blood, By Fecal Hemoglobin Determination By Immunoassay82274 | 47 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 47 | $131 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 184 | 55 |
| Pantoprazole Sodium | 167 | 68 |
| Famotidine | 133 | 57 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 52 | 45 |
| Mesalamine | 52 | — |
| Dicyclomine Hcl | 39 | 14 |
| Linaclotidebrand: Linzess | 30 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-05
- Last updated
- 2016-10-07
Frequently asked questions
- What is Ashby Thomas's NPI number?
- Ashby Thomas's National Provider Identifier (NPI) is 1366767154, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashby Thomas's specialty?
- Ashby Thomas is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Ashby Thomas located?
- Ashby Thomas's practice location on file with NPPES is 2001 Marcus Ave, New Hyde Park, NY 11042-2061.
- What is Ashby Thomas's phone number?
- The practice phone number listed in the NPPES registry for Ashby Thomas is (516) 775-7770.
- Does Ashby Thomas accept Medicare?
- Ashby Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashby Thomas's NPI active?
- Yes — Ashby Thomas's NPI (1366767154) is active in the NPPES registry as of the last update on 2016-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.