Nicholas Lacava, MD
Nicholas Lacava, MD is a General Practice Physician in West Boylston, MA, registered under NPI 1770690141. This provider registers 15 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 360 W BOYLSTON ST SUITE 107, West Boylston, MA 01583. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 39891 | MA | General Practice Physician primary |
| 39891 | MA | Allergy & Immunology Physician |
| 39891 | MA | Adolescent Medicine (Family Medicine)… |
| 39891 | MA | Pediatrics Physician |
| 39891 | MA | Pediatric Adolescent Medicine Physician |
| 39891 | MA | Developmental - Behavioral Pediatrics… |
| 39891 | MA | Pediatric Neurodevelopmental Disabilities… |
| 39891 | MA | Pediatric Allergy/Immunology Physician |
| 39891 | MA | Pediatric Endocrinology Physician |
| 39891 | MA | Pediatric Gastroenterology Physician |
| 39891 | MA | Pediatric Infectious Diseases Physician |
| 39891 | MA | Pediatric Pulmonology Physician |
| 39891 | MA | Pediatric Medical Toxicology Physician |
| 39891 | MA | Preventive Medicine/Occupational… |
| 39891 | MA | Medical Toxicology (Preventive Medicine)… |
This provider holds licence 39891 issued in MA. 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 General Practice covers
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. NUCC Health Care Provider Taxonomy, code 208D00000X
All registered taxonomy codes
This provider registers 15 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | 39891 | MA | primary |
| 207K00000X | Allergy & Immunology Physician | 39891 | MA | |
| 207QA0000X | Adolescent Medicine (Family Medicine) Physician Adolescent Medicine | 39891 | MA | |
| 208000000X | Pediatrics Physician | 39891 | MA | |
| 2080A0000X | Pediatric Adolescent Medicine Physician Adolescent Medicine | 39891 | MA | |
| 2080P0006X | Developmental - Behavioral Pediatrics Physician Developmental - Behavioral Pediatrics | 39891 | MA | |
| 2080P0008X | Pediatric Neurodevelopmental Disabilities Physician Neurodevelopmental Disabilities | 39891 | MA | |
| 2080P0201X | Pediatric Allergy/Immunology Physician Pediatric Allergy/Immunology | 39891 | MA | |
| 2080P0205X | Pediatric Endocrinology Physician Pediatric Endocrinology | 39891 | MA | |
| 2080P0206X | Pediatric Gastroenterology Physician Pediatric Gastroenterology | 39891 | MA | |
| 2080P0208X | Pediatric Infectious Diseases Physician Pediatric Infectious Diseases | 39891 | MA | |
| 2080P0214X | Pediatric Pulmonology Physician Pediatric Pulmonology | 39891 | MA | |
| 2080T0002X | Pediatric Medical Toxicology Physician Medical Toxicology | 39891 | MA | |
| 2083P0500X | Preventive Medicine/Occupational Environmental Medicine Physician Preventive Medicine/Occupational Environmental Medicine | 39891 | MA | |
| 2083T0002X | Medical Toxicology (Preventive Medicine) Physician Medical Toxicology | 39891 | MA |
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1770690141 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 23, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
360 W BOYLSTON ST SUITE 107 West Boylston, MA 01583 (508) 854-1380 Fax (508) 854-0446 |
| Other identifiers |
030891
· Other (MA) 2045842 · Medicaid (MA) E11028 · Other (MA) |
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 | 7 | 7 | 0 | 6 | 9 | 0 | 1 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 5 | 0 | 3 | 9 | 0 | 1 | 8 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.