Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alphonsus G. Diamond, MD

Family Medicine Physician in Monticello, IN · enumerated 2009.

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

National Provider Identifier

1982831939

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Registry record

Entity type Individual (Type 1)

Name Alphonsus G. Diamond

Credential MD

Sex Male

Practice address 810 S 6th St, Monticello, IN, 47960

Phone (574) 583-6543

Fax (574) 583-9502

Enumeration date Jun 17, 2009

Last updated in NPPES Feb 2, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01068613A (IN) 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
000000774056	Other	IN	ANTHEM PROVIDER NUMBER
201018230	Medicaid	IN	-

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 Alphonsus Diamond practice?

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

What is the NPI number for Alphonsus Diamond?

The National Provider Identifier (NPI) for Alphonsus Diamond is 1982831939, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-02.