ESA TOXICOLOGY LLC
ESA TOXICOLOGY LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003229089, based in Houston, TX. It is classified under Clinical Medical Laboratory.
Getting there
Here is what surrounds this office in Houston, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 449 ft away. There is EV charging 0.41 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 0.22 mi away, served by Ambassador (Northbound). A pharmacy sits 0.48 mi from the entrance (Cedra Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.30 mi away.
Getting here and what is nearby
Parking 61 ft ~1 min
Parking 257 ft ~1 min
Parking 449 ft ~2 min
Restaurant Just Falafel 519 ft ~2 min
2111 West Loop South, 77027
Su-Th 10:30-22:00; Fr 10:30-23:00; Sa 09:00-23:00
Convenience Food Mart 702 ft ~3 min
4423 San Felipe Street, Houston 77027
Hotel The Royal Sonesta Houston Galleria 663 ft ~3 min
Restaurant Sushi on Post Oak 698 ft ~3 min
2027 Post Oak Boulevard, Houston 77056
Mo 11:00-22:00; Tu-We 11:00-23:00; Th-Fr 11:00-24:00
Hotel Hilton 714 ft ~3 min
2001 Post Oak Boulevard, Houston 77056
Gas station Exxon 779 ft ~3 min
4423 San Felipe Street, Houston 77027
Restaurant Maggiano's Little Italy 840 ft ~4 min
2019 Post Oak Boulevard, Houston 77056
Mo-Th 11:00-22:00; Fr 11:00-23:00; Sa 10:30-23:00; Su 10:30-21:00
Hotel Extended Stay America 1,024 ft ~4 min
2300 West Loop South, Houston 77027
Transit Ambassador (Southbound) 0.20 mi ~5 min
Transit Guilford (Northbound) 0.21 mi ~5 min
Transit Ambassador (Northbound) 0.22 mi ~5 min
Coffee Starbucks 0.23 mi ~5 min
Coffee Merchant 0.28 mi ~6 min
1707 Post Oak Boulevard
Coffee Starbucks 0.30 mi ~6 min
Pharmacy CVS Pharmacy 0.32 mi ~7 min
EV charging ChargePoint 0.34 mi ~7 min
Convenience Timewise 0.36 mi ~8 min
2602 West Loop South, Houston 77027
Gas station Shell 0.36 mi ~8 min
Grocery Whole Foods Market 0.36 mi ~8 min
1700 Post Oak Boulevard, Houston 77056
Mo-Su 08:00-22:00
Pharmacy CVS Pharmacy 0.38 mi ~8 min
EV charging 0.41 mi ~9 min
Pharmacy Cedra Pharmacy 0.48 mi ~10 min
1607 South Post Oak Lane
Grocery Randalls 0.52 mi ~11 min
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 Clinical Medical Laboratory covers
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology. NUCC Health Care Provider Taxonomy, code 291U00000X
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 | 1003229089 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jun 6, 2014 |
| Last updated | Aug 13, 2015 |
| Status | Active |
| Practice address |
2100 WEST LOOP SOUTH SUITE 1200 Houston, TX 77477 (713) 877-0600 Fax (713) 877-0601 |
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 | 2 | 2 | 9 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 2 | 9 | 0 | 7 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.