ELGON BUSINESS GROUP INC
ELGON BUSINESS GROUP INC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003550864, based in Waltham, MA. It is classified under Clinical Medical Laboratory.
Getting there
Here is what surrounds this office in Waltham, based on OpenStreetMap data collected Oct 5, 2026. Parking is available about 276 ft away. There is EV charging 0.26 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 157 ft away, served by Main St @ Prospect St. A pharmacy sits 989 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 241 ft away.
Getting here and what is nearby
Transit Main St @ Prospect St 2 ft ~1 min
Transit Main St @ Hammond St 100 ft ~1 min
Restaurant Dominican Grill 85 ft ~1 min
897 Main Street, Waltham 02451
Mo-Th,Su 10:00-21:00; Fr-Sa 10:00-22:00
Restaurant Hakata Ramen & Sushi 87 ft ~1 min
895 Main Street, Waltham 02451
Mo-Th 11:30-15:00, 16:30-21:00; Fr 11:30-22:00; Sa 12:00-22:00; Su 12:00-21:00
Restaurant Lena's 109 ft ~1 min
889 Main Street, Waltham 02451
Mo-Sa 10:30-21:00; Su 11:00-21:00
Transit Main St @ Prospect St 157 ft ~1 min
Parking 155 ft ~1 min
Parking 164 ft ~1 min
Coffee Mister Monut 241 ft ~1 min
873 Main Street, Waltham 02451
We-Sa 07:30-19:00; Su 08:00-17:00
Parking 276 ft ~2 min
Grocery Kev's Kwik Market 246 ft ~1 min
909 Main Street, Waltham 02451
Pharmacy Watch City Pharmacy 364 ft ~2 min
923 Main Street, Waltham 02451-7416
Mo-Fr 09:00-19:00; Sa 09:00-17:00
Pharmacy Hannaford Pharmacy 553 ft ~3 min
Grocery Hannaford 658 ft ~3 min
Convenience Speedway 906 ft ~4 min
Gas station Shell 891 ft ~4 min
962 Main Street
Gas station Speedway 920 ft ~4 min
Convenience Shell 966 ft ~4 min
962 Main Street
Gas station Mobil 1,006 ft ~4 min
Pharmacy CVS Pharmacy 989 ft ~4 min
Convenience Maya Market 0.22 mi ~5 min
EV charging 0.25 mi ~6 min
EV charging 0.26 mi ~6 min
Grocery Cowboy Supermarket 0.30 mi ~7 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 | 1003550864 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Apr 26, 2022 |
| Last updated | Apr 26, 2022 |
| Status | Active |
| Practice address |
903 MAIN ST UNIT A Waltham, MA 02451 (781) 701-6172 |
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 | 5 | 5 | 0 | 8 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 0 | 8 | 3 |
Sum = 46 · next multiple of 10 = 50 · 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.