Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Amy Portnoy, R.D.H.
Dental Hygienist in Newton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033280995
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Registry record
Entity type Individual (Type 1)
Name Mrs. Amy Portnoy
Credential R.D.H.
Sex Male
Practice address 1400 Centre St, Suite 201, Newton, MA, 02459
Phone (617) 965-2440
Fax (617) 965-2423
Enumeration date Nov 13, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 8395 | Other | MA | MA STATE LICENSE # |
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 Amy Portnoy?
Amy Portnoy is registered in NPPES with the primary taxonomy of Dental Hygienist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Joanie Piken Clinical Social Worker · Newton Centre, MA NPI 1477538650 Sylvia Kaneko Clinical Social Worker · Newton Centre, MA NPI 1003891284 Steven Levitt General Practice Dentistry · Newton, MA NPI 1952373706 Lynn Baden Dermatology Physician · Newton, MA NPI 1417929977 Rowe Physical Therapy and Associates Occupational Therapist · Newton Centre, MA NPI 1487623351 Elissa Rottenberg Pediatrics Physician · Newton Centre, MA NPI 1356310981 Roger Spingarn Pediatric Adolescent Medicine Physician · Newton Centre, MA NPI 1871562041 Jonathan Benjamin Pediatrics Physician · Newton Centre, MA NPI 1699734202
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.