YITZHAK D. TWERSKY M.D., P.C.
YITZHAK D. TWERSKY M.D., P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003188764, based in Lawrence, NY. It is classified under Gastroenterology Physician.
Getting there
Here is what surrounds this office in Lawrence, based on OpenStreetMap data collected Sep 10, 2026. Parking is available about 368 ft away. The nearest transit stop is 379 ft away, served by Central Avenue & Public School. A pharmacy sits 0.32 mi from the entrance (Grand Central Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Parking 69 ft ~1 min
Transit Central Avenue & Rockaway Turnpike 147 ft ~1 min
Transit Central Avenue & Rockaway Turnpike 190 ft ~1 min
Restaurant Traditions Eatery 238 ft ~1 min
Restaurant Prime Bistro 249 ft ~1 min
305 Central Avenue, Lawrence 11559
Restaurant Gino's 334 ft ~2 min
Transit Central Avenue & Public School 379 ft ~2 min
Parking 368 ft ~2 min
Parking 368 ft ~2 min
Grocery Four Seasons 419 ft ~2 min
Central Avenue
Pharmacy Doses Pharmacy 718 ft ~3 min
353 Central Avenue
Coffee Lolli bop Cafe & Play 0.26 mi ~6 min
398 Central Avenue, Lawrence 11559
Coffee Cravings 0.30 mi ~6 min
410 Central Avenue, Cedarhurst 11516
Pharmacy Grand Central Pharmacy 0.32 mi ~7 min
420 Central Avenue, Cedarhurst 11516
Coffee Crawfords Coffee Bar & Cafe 0.33 mi ~7 min
424 Central Avenue, Cedarhurst 11516
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 172791 | NY | Gastroenterology Physician primary |
This provider holds licence 172791 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Gastroenterology covers
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. NUCC Health Care Provider Taxonomy, code 207RG0100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003188764 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 27, 2012 |
| Last updated | Jan 27, 2012 |
| Status | Active |
| Practice address |
290 CENTRAL AVE SUITE 204 Lawrence, NY 11559 (516) 476-7710 Fax (516) 239-6866 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 8 | 8 | 7 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 8 | 7 | 7 | 3 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.