Oak Tree Asc, LLC

Oak Tree Asc, LLC is a healthcare organization registered as Ambulatory Surgical Clinic/Center in Pasadena, CA, holding Type 2 (organization) NPI 1417051533 since 2006. The authorized official on file is Robert Wycoff, Administrator.

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NPI	1417051533
Entity type	Organization (Type 2)
Legal business name	Oak Tree Asc, LLC
Practice address	751 CORDOVA ST, STE 2, Pasadena, CA, 91101
Phone	6265772525
Fax	6265772986
Enumeration date	2006-09-11
Last updated in NPPES	2008-08-28

Authorized official

Name	Robert Wycoff
Title	Administrator
Phone	6265773415

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
261QA1903X	Ambulatory Surgical Clinic/Center	Primary	930000938	CA

Copy-ready billing details

Provider: Oak Tree Asc, LLC
NPI: 1417051533
Taxonomy: 261QA1903X (Ambulatory Surgical Clinic/Center)
Address: 751 CORDOVA ST, STE 2, Pasadena, CA, 91101

Providers at this address

NPI	Name	Type	Specialty	Location
1972607091	R Robert Wycoff MD Inc	Organization	Diagnostic Radiology Physician	Pasadena, CA
1700961489	Juan Esteva	Individual	Vascular & Interventional Radiology Physician	Pasadena, CA

Verify this record

Cross-check NPI 1417051533 against the authoritative CMS record: view Oak Tree Asc, LLC on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-08-28. Verify at npiregistry.cms.hhs.gov.

Where is Oak Tree Asc, LLC located?

The practice location on file with NPPES is in Pasadena, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2008-08-28.