Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Paul Louis Walton, MD

Q: What is the NPI number for Paul Walton?

The National Provider Identifier (NPI) for Paul Walton is 1912905423, a Type 1 (individual) record in the CMS NPPES registry.

Ophthalmology Physician in Indianapolis, IN · enumerated 2005.

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

National Provider Identifier

1912905423

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Registry record

Entity type Individual (Type 1)

Name Dr. Paul Louis Walton

Credential MD

Sex Male

Practice address 1901 N Meridian St, Indianapolis, IN, 46202

Phone (317) 925-2200

Fax (317) 921-6609

Enumeration date Jul 8, 2005

Last updated in NPPES Aug 30, 2021

Taxonomy & licenses

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 1035918A (IN) Secondary

152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 01035918A (IN) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 01035918A (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
100228320B	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 Paul Walton practice?

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

What is the NPI number for Paul Walton?

The National Provider Identifier (NPI) for Paul Walton is 1912905423, 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 2021-08-30.