Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John James Caravolas, DDS
Pediatric Dentistry in Waltham, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538250659
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Registry record
Entity type Individual (Type 1)
Name Mr. John James Caravolas
Credential DDS
Sex Male
Practice address 20 Hope Ave, Suite 306, Waltham, MA, 02453
Phone (781) 647-0804
Fax (781) 647-6730
Enumeration date Sep 27, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0257524 | Medicaid | MA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is John Caravolas?
John Caravolas is registered in NPPES with the primary taxonomy of Pediatric Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Donald Putnoi Ophthalmology Physician · Waltham, MA NPI 1689673980 Martin Richler Ophthalmology Physician · Waltham, MA NPI 1083613384 Sharon Smith Pediatrics Physician · Waltham, MA NPI 1760472211 Bruce Becker Gastroenterology Physician · Waltham, MA NPI 1255312104 Thomas Grady Surgery Physician · Waltham, MA NPI 1518949346 Twinbrook Surgical Associates Surgery Physician · Waltham, MA NPI 1225010846 Tanya Yanovsky Psychiatry Physician · Waltham, MA NPI 1295719748 Ann Abbott Midwife · Waltham, MA NPI 1881669265
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.