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

John J Sullivan, M.D.

Internal Medicine Physician in Wilmington, MA · enumerated 2006 · practices at Cavanaugh Counseling LLC.

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

National Provider Identifier

1225070022

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Registry record

Entity type Individual (Type 1)

Name John J Sullivan

Credential M.D.

Sex Male

Practice address Wilmington, MA, 01887

Phone (978) 658-4432

Fax (978) 658-5751

Enumeration date Jun 13, 2006

Last updated in NPPES Jul 8, 2007

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 33493 (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
706387	Other	MA	TUFTS HEALTH PLAN
164920	Other	-	CIGNA HEALTHSOURCE
2061899	Medicaid	MA	-
70503	Other	-	HARVARD PILGRIM
B52010	Other	MA	BLUE CROSS BLUE SHIELD
0015705	Other	MA	NEIGHBORHOOD HEALTH
35943	Other	MA	FALLON COMMUNITY HEALTH
B10030001	Other	-	CIGNA

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.

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Frequently asked questions

How do I verify John Sullivan's NPI record?

Cross-check NPI 1225070022 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1225070022 active?

Yes, as of the latest NPPES snapshot, NPI 1225070022 is active (record last updated 2007-07-08).

Other providers at this practice address

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Cavanaugh Counseling LLC Clinical Social Worker · Wilmington, MA NPI 1457136673

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.