NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey A Yablonski, M.D.

Pediatrics Physician in Wellesley, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1962472126

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Jeffrey A Yablonski
Credential M.D.
Sex Male
Practice address 230 Worcester St, Wellesley, MA, 02481
Phone (781) 431-5230
Fax (781) 431-5518
Enumeration date Jan 23, 2006
Last updated in NPPES Oct 26, 2020

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 155406 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
J19103 Other MA BLUE CROSS
155406 Other MA TUFTS
PP824 Other MA HARVARD PILGRIM
0015187 Other MA NEIGHBORHOOD HEALTH
3196259 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Jeffrey Yablonski?
The National Provider Identifier (NPI) for Jeffrey Yablonski is 1962472126, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jeffrey Yablonski practice?
The practice location on file with NPPES is in Wellesley, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-26.