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Gm Sally Mellgren, M.D. Inc.

Ophthalmology Physician in Oceanside, CA · enumerated 2005 · authorized official Joanne Roper, Practice Administrator.

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

National Provider Identifier

1285637637

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Registry record

Entity type Organization (Type 2)
Legal business name Gm Sally Mellgren, M.D. Inc.
Practice address 3621 Vista Way, Oceanside, CA, 92056
Phone (760) 757-1144
Fax (760) 721-7701
Enumeration date May 31, 2005
Last updated in NPPES Apr 25, 2012

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License G53485 (CA) Primary

Authorized official

Name Joanne Roper
Title Practice Administrator
Phone (760) 757-1144

Other identifiers

Identifier Type State Issuer
00G534850 Medicaid CA -
33-0241763A Other CA HEALTHNET
ZZZ07175Z Other CA BLUE SHIELD OF CALIFORNIA

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.

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Frequently asked questions

What type of organization is Gm Sally Mellgren, M.D. Inc.?
Gm Sally Mellgren, M.D. Inc. is registered in NPPES as a Ophthalmology Physician (its primary provider taxonomy).
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-25.