NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John J Alarcon, M.D.

Diagnostic Radiology Physician in Goodlettsville, TN · enumerated 2006.

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

National Provider Identifier

1184663494

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Registry record

Entity type Individual (Type 1)
Name Mr. John J Alarcon
Credential M.D.
Sex Male
Practice address 3024 Business Park Cir, Goodlettsville, TN, 37072
Phone (615) 851-6033
Fax (615) 851-2018
Enumeration date Jun 5, 2006
Last updated in NPPES Nov 30, 2011

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 21658 (TN) Primary
2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License 21658 (TN) 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
4078476 Other TN BCBS
3061172 Medicaid TN -
1509243 Medicaid TN -
3138689 Other TN BCBS
4200489 Other TN BCBS TN
1509243 Other TN MEDICAID - TN - MTI
3131184 Other TN BCBS
4291359 Other TN BCBS - MTI
64713241 Other KY KY MEDICAID
1600682 Other TN UNITED HEALTHCARE OF TN
300104322 Other TN RAIL ROAD MEDICARE
3869362 Other TN CIGNA

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

What specialty is John Alarcon?
John Alarcon is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-30.