Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Whole Health Weight Loss Institute

Surgery Physician in Napa, CA · enumerated 2017 · authorized official Marsha Summers, Practice Administrator.

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

National Provider Identifier

1952823841

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Registry record

Entity type Organization (Type 2)

Legal business name Whole Health Weight Loss Institute

Practice address 1300 Main St Ste 200, Napa, CA, 94559

Phone (866) 441-8290

Enumeration date Jul 12, 2017

Last updated in NPPES Nov 21, 2024

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Marsha Summers

Title Practice Administrator

Phone (866) 441-0570

Other identifiers

Identifier	Type	State	Issuer
PENDING	Other	CA	MEDICARE

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 type of organization is Whole Health Weight Loss Institute?

Whole Health Weight Loss Institute is registered in NPPES as a Surgery 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 2024-11-21.