GROSSMONT ENDOSCOPY INSTITUTE LLC
GROSSMONT ENDOSCOPY INSTITUTE LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003701566, based in La Mesa, CA. It is classified under Ambulatory Surgical Clinic/Center.
Getting there
Here is what surrounds this office in La Mesa, based on OpenStreetMap data collected Oct 17, 2026. Parking is available about 0.51 mi away at Fuerte Drive Park And Ride. The nearest transit stop is 767 ft away. If you arrive early, there is a coffee shop 0.41 mi away.
Getting here and what is nearby
Gas station 76 486 ft ~2 min
Transit La Mesa Bl & Grossmont Bl 510 ft ~2 min
Transit La Mesa Bl & Grossmont bl 651 ft ~3 min
Parking Grossmont Blvd Park & Ride 699 ft ~3 min
5230 Bancroft Dr Nw Quad Sr 125 / Grossmont Blvd Ic 03 Mi S I-8 Ic, La Mesa 91941
Restaurant Marieta's 742 ft ~3 min
Transit 767 ft ~3 min
Grocery Walmart Neighborhood Market 0.29 mi ~6 min
8810 Grossmont Boulevard, La Mesa 91942
Mo-Su 06:00-24:00
Restaurant Submarina California Subs 0.37 mi ~8 min
5454 Grossmont Center Drive, La Mesa 91942
Mo-Sa 10:00-20:05; Su 10:00-18:05
Parking Murray Drive Park & Ride 0.38 mi ~8 min
8725 Murray Drive E Of Red Lobster @ Grossmont Ctr, La Mesa 91942
Restaurant Jack in the Box 0.39 mi ~8 min
Coffee CAFÉ a gogo 0.41 mi ~9 min
Grocery Trader Joe's 0.44 mi ~9 min
5495 Grossmont Center Drive, La Mesa 91942
Mo-Su 08:00-21:00
Parking Fuerte Drive Park And Ride 0.51 mi ~11 min
5480 Bancroft Drive, La Mesa 91941
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Ambulatory Surgical covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QA1903X
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 | 1003701566 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 12, 2025 |
| Last updated | Jun 12, 2025 |
| Status | Active |
| Practice address |
9001 GROSSMONT BLVD STE 606 La Mesa, CA 91941 (619) 303-9000 |
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 | 7 | 0 | 1 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 0 | 2 | 5 | 3 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.