Thoi Lien MD a Professional Corporation
NPI 1609036169 · Primary Care Clinic/Center · Rosemead, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thoi Lien MD a Professional Corporation is a Primary Care Clinic/Center organization in Rosemead, CA (NPI 1609036169).
Provider details
- NPI number
- 1609036169
- Entity type
- Organization
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Thoi Lien, Sole Owner(626) 280-5035
Specialties & taxonomies
Ambulatory Health Care Facilities
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-09
- Last updated
- 2023-03-07
- Certified
- 2021-09-17
Frequently asked questions
- What is Thoi Lien MD a Professional Corporation's NPI number?
- Thoi Lien MD a Professional Corporation's National Provider Identifier (NPI) is 1609036169, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Thoi Lien MD a Professional Corporation?
- Thoi Lien MD a Professional Corporation is classified in the NPPES registry as Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Thoi Lien MD a Professional Corporation located?
- Thoi Lien MD a Professional Corporation's practice location on file with NPPES is 8054 Garvey Ave Ste 201, Rosemead, CA 91770-2449.
- What is Thoi Lien MD a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Thoi Lien MD a Professional Corporation is (626) 280-5035.
- Does Thoi Lien MD a Professional Corporation accept Medicare?
- Thoi Lien MD a Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Thoi Lien MD a Professional Corporation?
- The authorized official listed on Thoi Lien MD a Professional Corporation's NPPES record is Thoi Lien, Sole Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Thoi Lien MD a Professional Corporation's NPI active?
- Yes — Thoi Lien MD a Professional Corporation's NPI (1609036169) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.