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

Dr. John Marruffo, M.D.

Health Educator in Dallas, TX · enumerated 2012.

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

National Provider Identifier

1699041350

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John Marruffo

Credential M.D.

Sex Male

Practice address Dallas, TX, 75234

Phone (214) 334-5328

Enumeration date Mar 27, 2012

Last updated in NPPES Feb 16, 2016

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

Taxonomy & licenses

171W00000X Contractor Other Service Providers Secondary

175F00000X Naturopath Other Service Providers Secondary

246Y00000X Health Information Specialist/Technologist Technologists, Technicians & Other Technical Service Providers Secondary

247200000X Other Technician Technologists, Technicians & Other Technical Service Providers Secondary

174H00000X Health Educator Other Service Providers Primary

172V00000X Community Health Worker Other Service Providers Secondary

175L00000X Homeopath Other Service Providers Secondary

171000000X Military Health Care Provider Other Service Providers Secondary

1744R1102X Research Study Specialist Other Service Providers Secondary

101YP1600X Pastoral Counselor Behavioral Health & Social Service Providers Secondary

246YC3302X Physician Office Based Coding Specialist Technologists, Technicians & Other Technical Service Providers Secondary

246ZA2600X Medical Art Specialist/Technologist Technologists, Technicians & Other Technical Service Providers Secondary

174400000X Specialist Other Service Providers Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 specialty is John Marruffo?

John Marruffo is registered in NPPES with the primary taxonomy of Health Educator. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-16.