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ANTHONY THONG PHAN MD INC
NPI 1730139353
Internal Medicine - Geriatric Medicine in Simi Valley, CA

Active since May 12, 2006
1189 SWALLOW LN STE 110, SIMI VALLEY, CA 93065(805) 526-3213(805) 583-5929 Get Directions Write a Review

NPPES record last updated: August 21, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Anthony Thong Phan Md Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANTHONY THONG PHAN MD INC (NPI 1730139353) is a healthcare organization registered as a geriatric medicine in Simi Valley, California and active in the NPI registry since May 2006. The organization lists Anthony Thong Phan, President Ceo, as its authorized official.

NPPES Registry Identity

NPI1730139353
Entity TypeOrganization
Primary Taxonomy207RG0300X
Legal Business NameANTHONY THONG PHAN MD INC
Location Address1189 SWALLOW LN STE 110Simi Valley, CA 93065-3157
Mailing Address1189 Swallow Ln Ste 110Simi Valley, CA 93065-3157 · (805) 526-3213 · Fax (805) 583-5929
Phone(805) 526-3213
Fax(805) 583-5929
Organization SubpartNo
Authorized OfficialAnthony Thong PhanPresident Ceo · (805) 526-3213
Enumeration DateMay 12, 2006
Last NPPES UpdateAugust 21, 2019
✔ NPI 1730139353 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in CA · G83470
Definition
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.
1189 SWALLOW LN STE 110, Simi Valley, CA 93065
Open in Google Maps ↗

Other Identifiers 2

Other05D0989497CA · Clia
Other00G834700CA · Medical Provider Number

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anthony Thong Phan Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Anthony Thong Phan MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Anthony Phan, M.D.
Internal Medicine
NPI 1124207006
1189 SWALLOW LN STE 110
Simi Valley, CA 93065
(805) 526-3213
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Anthony Thong Phan MD Inc's NPI number?

The NPI number for Anthony Thong Phan MD Inc is 1730139353. It was assigned to this organization in the NPPES registry on May 12, 2006.

Where is Anthony Thong Phan MD Inc located?

Anthony Thong Phan MD Inc is located at 1189 Swallow Ln Ste 110, Simi Valley, CA 93065. The listed phone number is (805) 526-3213.

What is Anthony Thong Phan MD Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Anthony Thong Phan MD Inc enrolled in Medicare?

Yes. Anthony Thong Phan MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Anthony Thong Phan MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Anthony Thong Phan MD Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Anthony Thong Phan MD Inc was last updated on August 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.