Thanh-Thao Thieu, O.D.
NPI 1588634497 · Optometrist · Chalfont, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thanh-Thao Thieu, O.D. is a Optometrist provider in Chalfont, PA (NPI 1588634497).
Provider details
- NPI number
- 1588634497
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- OEG001198 (PA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
203 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina for Disease Detection, With Automated Review and Report at Point of Care92229 | 163 | $43 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 28 | $94 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 12 | $17 |
Typical Medicare-allowed amounts for these services range $17–$94 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-24
- Last updated
- 2013-07-01
Frequently asked questions
- What is Thanh-Thao Thieu's NPI number?
- Thanh-Thao Thieu's National Provider Identifier (NPI) is 1588634497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thanh-Thao Thieu's specialty?
- Thanh-Thao Thieu is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Thanh-Thao Thieu located?
- Thanh-Thao Thieu's practice location on file with NPPES is 3425 Limekiln Pike, Chalfont, PA 18914-3602.
- What is Thanh-Thao Thieu's phone number?
- The practice phone number listed in the NPPES registry for Thanh-Thao Thieu is (215) 997-0411.
- Does Thanh-Thao Thieu accept Medicare?
- Thanh-Thao Thieu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thanh-Thao Thieu's NPI active?
- Yes — Thanh-Thao Thieu's NPI (1588634497) is active in the NPPES registry as of the last update on 2013-07-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.