Thanh-Thao Thieu, O.D.
Optometrist · Chalfont, PA
Thanh-Thao Thieu, O.D. is an optometrist with a practice address in Chalfont, Pennsylvania, and NPI 1588634497, issued on Jan 24, 2006. Check the license (Pennsylvania OEG001198, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thanh-Thao Thieu
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OEG001198 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3425 Limekiln Pike, Chalfont, PA 18914
- Phone
- (215) 997-0411
- Enumerated
- Jan 24, 2006
- Record last updated
- Jul 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicaid ID
- 1026589540001 PA
- Medicare enrollment
- Enrolled (PECOS I20070830000080); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 2003
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 3425 Limekiln Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sindhu GundabathulaDentist1619128527
Verify Thanh-Thao Thieu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG001198Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Temple Faculty Practice Plan IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thanh-Thao Thieu among 2,640 optometrist records in Pennsylvania
Thanh-Thao Thieu, O.D. is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2003 · median 2004 among the 1,588 with a school on file
- Record last updated2013 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Pennsylvania
There are 2,640 optometrist records in Pennsylvania.
All 2,640 in Pennsylvania → Every provider in Chalfont → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Melissa Richard, O.D.Chalfont, PA 189141487676631
- Paul Forrest, O.DColmar, PA 189151386674042
- Katharina Dubyk, ODDublin, PA 189171730813288
- John Knouse, O.D.Dublin, PA 189171851399281
- Andrew TaberDublin, PA 189171396634242
- Nicole Takita, ODDublin, PA 189171114540762
- Erin Wisber, O.D.Dublin, PA 189171669602801
- Christine Chmielewski, O.D.Doylestown, PA 189021992869259
Common questions
What is Thanh-Thao Thieu, O.D.'s NPI number?
Thanh-Thao Thieu, O.D.'s National Provider Identifier (NPI) is 1588634497, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thanh-Thao Thieu, O.D. located?
The NPPES record lists a practice address at 3425 Limekiln Pike, Chalfont, PA, 18914. Phone: (215) 997-0411. Providers update this record themselves, so call before visiting.
How can I verify Thanh-Thao Thieu, O.D.'s license?
NPPES lists Pennsylvania license number OEG001198, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
What is Thanh-Thao Thieu, O.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.