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DR. TSZ YING LEE MD
NPI 1710180419
Internal Medicine in Los Angeles, CA

Active since June 08, 2007PECOS Enrolled
811 WILSHIRE BLVD, STE 110, LOS ANGELES, CA 90017(213) 415-1990(213) 415-1940 Get Directions Write a Review

NPPES record last updated: December 14, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Tsz Ying Lee Md NPPES

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

DR. TSZ YING LEE MD (NPI 1710180419) is an individual internal medicine provider in Los Angeles, California, licensed in California (A99205) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710180419
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. TSZ YING LEECredential: MD
Location Address811 WILSHIRE BLVD, STE 110Los Angeles, CA 90017-2606
Mailing Address811 Wilshire Blvd, Ste 110Los Angeles, CA 90017-2606 · (213) 415-1990 · Fax (213) 415-1940
Phone(213) 415-1990
Fax(213) 415-1940
Sole ProprietorYes
Enumeration DateJune 8, 2007
Last NPPES UpdateDecember 14, 2015
✔ NPI 1710180419 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A99205
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.
811 WILSHIRE BLVD, Los Angeles, CA 90017
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINBP652W

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Tsz Ying Lee Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Tsz Ying Lee reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Health Atlast West La Inc
10 mi
Physical Medicine & Rehabilitation
3030 SAWTELLE BLVD
Los Angeles, CA 90066
  • Reassigned Medicare billing, California enrollment
  • 29 clinicians in this Medicare group
NPI 1376968610 (310) 390-9018
The Regents Of The University Of California
11 mi
Internal Medicine
200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 1,766 clinicians in this Medicare group
NPI 1235107566 (310) 794-1276
Al Medical PC
321 mi
Internal Medicine
2291 W MARCH LN STE E101
Stockton, CA 95207
  • Reassigned Medicare billing, California enrollment
NPI 1710876792 (209) 292-8141

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90017 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIE FITT PMH,N.P.
Nurse Practitioner (Psychiatric/Mental Health)
811 WILSHIRE BLVD
LOS ANGELES, CA 90017
Los Angeles County (415) 412-4790
KRISTINA M MAGAFAS D.C
Chiropractor
811 WILSHIRE BLVD
LOS ANGELES, CA 90017
Los Angeles County (213) 415-1990
MARCUS JANG MS, NP
Nurse Practitioner (Psychiatric/Mental Health)
811 WILSHIRE BLVD
LOS ANGELES, CA 90017
Los Angeles County (716) 603-6680
INNOVATIVE MEDICINE
Physical Therapist
811 WILSHIRE BLVD, SUITE 110
LOS ANGELES, CA 90017
Los Angeles County (213) 415-1990

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 Tsz Ying Lee's NPI number?

The NPI number for Tsz Ying Lee is 1710180419. It was assigned to this individual provider in the NPPES registry on June 8, 2007.

Where is Tsz Ying Lee located?

Tsz Ying Lee practices at 811 Wilshire Blvd Ste 110, Los Angeles, CA 90017. The listed phone number is (213) 415-1990.

What is Tsz Ying Lee's specialty?

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

Is Tsz Ying Lee enrolled in Medicare?

Yes. Tsz Ying Lee is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Tsz Ying Lee's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tsz Ying Lee reassigns Medicare benefits to 3 organizations: Health Atlast West La Inc (Los Angeles, CA), The Regents Of The University Of California (Los Angeles, CA) and Al Medical PC (Stockton, CA). Each 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 Tsz Ying Lee's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Tsz Ying Lee was last updated on December 14, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.