Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John R. Danielson, M.D.

Plastic Surgery Physician in Merrillville, IN · enumerated 2007 · practices at Retson Plastic Surgerypc.

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

National Provider Identifier

1104966720

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. John R. Danielson

Credential M.D.

Sex Male

Practice address Merrillville, IN, 46410

Phone (219) 769-4456

Fax (219) 769-1468

Enumeration date Feb 6, 2007

Last updated in NPPES Jul 3, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 01034603 (IN) Primary

2082S0105X Surgery of the Hand (Plastic Surgery) Physician Allopathic & Osteopathic Physicians · License 01034603A (IN) 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
100201750A	Medicaid	IN	-
240000555	Other	IN	RAILROAD MEDICARE
000000095467	Other	-	ANTHEM

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

What is the NPI number for John Danielson?

The National Provider Identifier (NPI) for John Danielson is 1104966720, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Danielson practice?

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

Other providers at this practice address

Browse all →

Nicholas Retson Plastic Surgery Physician · Merrillville, IN NPI 1417020504 Retson Plastic Surgerypc Plastic Surgery Physician · Merrillville, IN NPI 1952581613

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-03.