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

Dr. John Franklyn Riefler III, M.D.

Infectious Disease Physician in Ridgewood, NJ · enumerated 2012.

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

National Provider Identifier

1003171299

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Registry record

Entity type Individual (Type 1)

Name Dr. John Franklyn Riefler III

Credential M.D.

Sex Male

Practice address Ridgewood, NJ, 07450

Phone (201) 652-3405

Enumeration date Jul 12, 2012

Last updated in NPPES Jul 12, 2012

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

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 61886 (NJ) Primary

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License 030090E (PA) 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.

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Frequently asked questions

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.

What specialty is John Riefler?

John Riefler is registered in NPPES with the primary taxonomy of Infectious Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-12.