Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Probo H Castillo, MD

Emergency Medicine Physician in Morristown, TN · enumerated 2006.

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

National Provider Identifier

1306893573

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Registry record

Entity type Individual (Type 1)

Name Probo H Castillo

Credential MD

Sex Male

Practice address 908 W 4th North St, Morristown, TN, 37814

Phone (423) 586-4234

Fax (865) 985-7077

Enumeration date May 31, 2006

Last updated in NPPES Nov 7, 2007

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 31733 (TN) 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
3854448	Medicaid	TN	-
64045370	Medicaid	KY	-
4069306	Other	TN	BC BS

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

Where does Probo Castillo practice?

The practice location on file with NPPES is in Morristown, TN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Probo Castillo?

The National Provider Identifier (NPI) for Probo Castillo is 1306893573, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-07.