Lien-Thu Dao, OD
NPI 1548574361 · Optometrist · Sturbridge, MA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lien-Thu Dao, OD is a Optometrist provider in Sturbridge, MA (NPI 1548574361).
Provider details
- NPI number
- 1548574361
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 4806 (MA)
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
15 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
791 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 497 | $117 |
| New Patient Complete Exam of Visual System92004 | 114 | $139 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 90 | $118 |
| Photography of the Retina92250 | 28 | $32 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $84 |
| Exam of Visual Field With Extended Testing92083 | 25 | $60 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 39 | 33 |
| Cyclosporinebrand: Restasis | 30 | 11 |
| Cyclosporine | 14 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-08-04
- Last updated
- 2015-12-29
Frequently asked questions
- What is Lien-Thu Dao's NPI number?
- Lien-Thu Dao's National Provider Identifier (NPI) is 1548574361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lien-Thu Dao's specialty?
- Lien-Thu Dao is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Lien-Thu Dao located?
- Lien-Thu Dao's practice location on file with NPPES is 100 Charlton Rd, Sturbridge, MA 01566-1505.
- What is Lien-Thu Dao's phone number?
- The practice phone number listed in the NPPES registry for Lien-Thu Dao is (508) 347-3300.
- Does Lien-Thu Dao accept Medicare?
- Lien-Thu Dao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lien-Thu Dao's NPI active?
- Yes — Lien-Thu Dao's NPI (1548574361) is active in the NPPES registry as of the last update on 2015-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.