Thai Lien Dang, DO
Ophthalmology Physician · Bellflower, CA
Thai Lien Dang, DO is an ophthalmology physician with a practice address in Bellflower, California, and NPI 1871645234, issued on Jan 17, 2007. Check the license (California 20A7458, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thai Lien Dang
- Credential
- DO
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 20A7458 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9400 Rosecrans Ave, Bellflower, CA 90706
- Phone
- (562) 461-3000
- Enumerated
- Jan 17, 2007
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040122000768); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 9400 Rosecrans Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Basil Abdelkarim, MDInternal Medicine Physician1003968454
- Le Marie Abellon, NPNurse Practitioner1144389867
- Adrian Acevedo, MDEmergency Medicine Physician1407923303
- Pravin Acharya, MDEmergency Medicine Physician1104993088
- Michele Afshar, PAPhysician Assistant1013065952
- Maria Agbing-Mamangun, MDPsychiatry Physician1063589984
Verify Thai Lien Dang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7458Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average ophthalmology physician in 2024
124 Medicare Part D claims for 40 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atropine Sulfate37 claims
- Neomycin-Polymyxin-Dexameth25 claims
- Dorzolamide-Timolol20 claims
- Prednisolone Acetate18 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupDowney, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thai Lien Dang among 2,899 ophthalmology physician records in California
Thai Lien Dang, DO is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Bellflower → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Sean Dumars, MDBellflower, CA 907061760404859
- Burton Goldstein, MDBellflower, CA 907061588789085
- Elisa Morinelli, MDBellflower, CA 907061588723183
- Elizabeth Owyang, MDBellflower, CA 907061992864565
- Paul Rabin, MDBellflower, CA 907061497894190
- Kevin Shiramizu, MDBellflower, CA 907061659430312
- Devesh Vyas, MDBellflower, CA 907061154446664
- Lenora Wu, MDBellflower, CA 907061881761716
Common questions
What is Thai Lien Dang, DO's NPI number?
Thai Lien Dang, DO's National Provider Identifier (NPI) is 1871645234, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thai Lien Dang, DO located?
The NPPES record lists a practice address at 9400 Rosecrans Ave, Bellflower, CA, 90706. Phone: (562) 461-3000. Providers update this record themselves, so call before visiting.
How can I verify Thai Lien Dang, DO's license?
NPPES lists California license number 20A7458, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thai Lien Dang, DO prescribe under Medicare Part D?
In 2024, Thai Lien Dang, DO had 124 Medicare Part D claims for 40 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.