NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Douglas Royall, M.D.

Specialist in Rumson, NJ · enumerated 2005.

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

National Provider Identifier

1174519037

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Registry record

Entity type Individual (Type 1)
Name Dr. John Douglas Royall
Credential M.D.
Sex Male
Practice address 108 Ave of Two Rivers, Rumson, NJ, 07760
Fax (732) 747-8343
Enumeration date Sep 26, 2005
Last updated in NPPES Jun 28, 2010

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 25MA03272600 (NJ) 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
2223150101 Other NJ UNITED HEALTHCARE
855366 Other NJ AETNA
OK1596 Other NJ PHYSICANS HEALTH SERVICE
J007490 Other NJ TRICARE
P2097550 Other NJ OXFORD HEALTH PLAN
222315102002 Other NJ CIGNA
222315102 Other NJ HORIZON BCBS
2990202 Medicaid NJ -

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 NPI 1174519037 active?
Yes, as of the latest NPPES snapshot, NPI 1174519037 is active (record last updated 2010-06-28).
How do I verify John Royall's NPI record?
Cross-check NPI 1174519037 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 2010-06-28.