Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ralph S Baker,O.D.Inc.

Q: What type of organization is Ralph S Baker,O.D.Inc.?

Ralph S Baker,O.D.Inc. is registered in NPPES as a Optometrist (its primary provider taxonomy).

Optometrist in Roseville, CA · enumerated 2007 · authorized official Ralph Baker, Optometrist.

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

National Provider Identifier

1659492262

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Registry record

Entity type Organization (Type 2)

Legal business name Ralph S Baker,O.D.Inc.

Practice address 531 Oak St, Suite 2, Roseville, CA, 95678

Phone (916) 783-8131

Fax (916) 783-3465

Enumeration date Apr 2, 2007

Last updated in NPPES Jul 24, 2008

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

Authorized official

Name Ralph Baker

Title Optometrist

Phone (916) 783-8131

Other identifiers

Identifier	Type	State	Issuer
SD0086620	Medicaid	CA	-

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Ralph S Baker,O.D.Inc.?

Ralph S Baker,O.D.Inc. is registered in NPPES as a Optometrist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-24.