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ELLICK TSANG M D CORPORATION
NPI 1114161205
Internal Medicine in Daly City, CA

Active since April 21, 2009
1800 SULLIVAN AVE, SUITE 304, DALY CITY, CA 94015(650) 992-8484(650) 992-8480 Get Directions Write a Review

NPPES record last updated: April 21, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ellick Tsang M D Corporation NPPES

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

ELLICK TSANG M D CORPORATION (NPI 1114161205) is a healthcare organization registered as an internal medicine in Daly City, California and active in the NPI registry since April 2009. The organization lists Ellick Tsang, President, as its authorized official.

NPPES Registry Identity

NPI1114161205
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameELLICK TSANG M D CORPORATION
Location Address1800 SULLIVAN AVE, SUITE 304Daly City, CA 94015-2228
Mailing Address3055 26th AveSan Francisco, CA 94132-1545 · (650) 992-8484 · Fax (650) 992-8480
Phone(650) 992-8484
Fax(650) 992-8480
Organization SubpartNo
Authorized OfficialEllick TsangPresident · (650) 992-8484
Enumeration DateApril 21, 2009
✔ NPI 1114161205 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A053928
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License A053928 (CA)
1800 SULLIVAN AVE, Daly City, CA 94015
Open in Google Maps ↗

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)

Ellick Tsang M D Corporation 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 Ellick Tsang M D Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Nang Lok Tsang, M.D.
Internal Medicine
NPI 1992873723
3085 24TH ST STE 203
San Francisco, CA 94110
(415) 648-5900
✔ PECOS5.7 mi

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 Ellick Tsang M D Corporation's NPI number?

The NPI number for Ellick Tsang M D Corporation is 1114161205. It was assigned to this organization in the NPPES registry on April 21, 2009.

Where is Ellick Tsang M D Corporation located?

Ellick Tsang M D Corporation is located at 1800 Sullivan Ave Suite 304, Daly City, CA 94015. The listed phone number is (650) 992-8484.

What is Ellick Tsang M D Corporation's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ellick Tsang M D Corporation enrolled in Medicare?

Yes. Ellick Tsang M D Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ellick Tsang M D Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Ellick Tsang M D Corporation. 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 Ellick Tsang M D Corporation was last updated on April 21, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.