Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Edwin Rivera Jr., M.D.

Family Medicine Physician in Milldale, CT · enumerated 2006.

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

National Provider Identifier

1720044811

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Registry record

Entity type Individual (Type 1)

Name Dr. John Edwin Rivera Jr.

Credential M.D.

Sex Male

Practice address Po Box 770, Milldale, CT, 06467

Phone (860) 621-5554

Fax (860) 621-3833

Enumeration date Apr 26, 2006

Last updated in NPPES Mar 31, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 042567 (CT) Primary

332B00000X Durable Medical Equipment & Medical Supplies Suppliers · License 042567 (CT) Secondary

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
042567	Other	CT	STATE MEDICAL 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1720044811 active?

Yes, as of the latest NPPES snapshot, NPI 1720044811 is active (record last updated 2026-03-31).

How do I verify John Rivera's NPI record?

Cross-check NPI 1720044811 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-31.