Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John Bordiuk, MD

Q: What is the NPI number for John Bordiuk?

The National Provider Identifier (NPI) for John Bordiuk is 1568571396, a Type 1 (individual) record in the CMS NPPES registry.

Internal Medicine Physician in Wellesley, MA · enumerated 2006.

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

National Provider Identifier

1568571396

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Registry record

Entity type Individual (Type 1)

Name John Bordiuk

Credential MD

Sex Male

Practice address Wellesley, MA, 02481

Phone (781) 239-9900

Fax (781) 239-9953

Enumeration date Aug 29, 2006

Last updated in NPPES Feb 22, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 77100 (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
0406799	Other	MA	UNITED HEALTH CARE
692543	Other	MA	HARVARD PILGRIM
J16668	Other	MA	BCBS
M21670	Other	MA	MEDICARE PROVIDER GROUP
7998387	Other	MA	CIGNA
792774	Other	MA	TUFTS HEALTH PLAN
5424600	Other	MA	AETNA

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 John Bordiuk?

The National Provider Identifier (NPI) for John Bordiuk is 1568571396, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Bordiuk 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 →

Parul Desai Family Medicine Physician · Wellesley Hills, MA NPI 1215933965 Joanne Stein Pain Medicine (Physical Medicine & Rehabilitation) Physician · Wellesley, MA NPI 1790774834 Patricia Davis Pediatrics Physician · Wellesley, MA NPI 1144210915 Margaret Bauman Neurology with Special Qualifications in Child Neurology Physician · Wellesley, MA NPI 1528059813 Jaclyn Sansone Occupational Therapist · Wellesley, MA NPI 1922084623 Bruce Tofias Internal Medicine Physician · Wellesley, MA NPI 1821064973 Brenda Haynes Specialist · Wellesley, MA NPI 1790752509 Stephen Lazarou Urology Physician · Wellesley, MA NPI 1578524674

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-22.