NPI Portal NPI Lookup & Verification

Dr. John Joseph Casey, M.D.

Dr. John Joseph Casey is a Specialist provider (Specialist) practicing in Modesto, CA, registered in the NPPES registry with NPI 1811909716 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1811909716
Entity type Individual (Type 1)
Name Dr. John Joseph Casey
Credential M.D.
Sex Male
Practice address 609 E ORANGEBURG AVE, SUITE 201, Modesto, CA, 95350
Phone 2095723224
Fax 2095724528
Enumeration date 2006-08-12
Last updated in NPPES 2007-07-08

Taxonomy & licenses

Taxonomy code Specialty Primary License State
174400000X Specialist Primary A34408 CA

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
00A344080 Medicaid CA
Copy-ready billing details
Provider: John Casey, M.D.
NPI: 1811909716
Taxonomy: 174400000X (Specialist)
Address: 609 E ORANGEBURG AVE, SUITE 201, Modesto, CA, 95350

Other providers at this practice address

NPI Name Type Specialty Location
1033111026 Marc Trzeciak Individual Orthopaedic Surgery Physician Modesto, CA
1174535074 Jonathan Cohen Individual Specialist Modesto, CA
1518979418 William Pistel Individual Orthopaedic Surgery Physician Modesto, CA
1497767396 Michael Wolterbeek Individual Podiatrist Modesto, CA
1164503496 Purita Villanueva Individual Procedural Dermatology Physician Modesto, CA
1043356827 Karen Henriquez Individual Other Technician Modesto, CA
1821134503 Paige Crowder Individual Licensed Vocational Nurse Modesto, CA
1457481269 Brenda Davis Individual Other Specialist/Technologist Modesto, CA

Verify this record

Cross-check NPI 1811909716 against the authoritative CMS record: view Dr. John Joseph Casey on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is John Casey?
John Casey is registered in NPPES with the primary taxonomy of Specialist. 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 2026-07-11. Provider record last updated 2007-07-08.