Myan Nguyen, O.D.
NPI 1336331610 · Optometrist · Mountville, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Myan Nguyen, O.D. is a Optometrist provider in Mountville, PA (NPI 1336331610).
Provider details
- NPI number
- 1336331610
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- OD00004162 (WA)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
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
18 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
776 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 Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 350 | $93 |
| Photography of the Retina92250 | 74 | $35 |
| Exam of Visual Field With Extended Testing92083 | 70 | $65 |
| Exam of the Internal Drainage System of Eye92020 | 64 | $28 |
| Imaging of Optic Nerve92133 | 63 | $37 |
| Ultrasound Scan of Cornea to Determine Thickness76514 | 54 | $11 |
| Imaging of Retina |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 97 | 61 |
| Timolol Maleate | 78 | 17 |
| Latanoprost | 57 | 15 |
| Loteprednol Etabonate | 42 | 22 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 38 | — |
| Travoprost | 19 | — |
| Besifloxacin Hclbrand: Besivance | 14 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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 , 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
- 2007-08-10
- Last updated
- 2009-09-25
Frequently asked questions
- What is Myan Nguyen's NPI number?
- Myan Nguyen's National Provider Identifier (NPI) is 1336331610, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Myan Nguyen's specialty?
- Myan Nguyen is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Myan Nguyen located?
- Myan Nguyen's practice location on file with NPPES is 151 Church St, Mountville, PA 17554-1421.
- What is Myan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Myan Nguyen is (360) 908-8154.
- Does Myan Nguyen accept Medicare?
- Myan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Myan Nguyen's NPI active?
- Yes — Myan Nguyen's NPI (1336331610) is active in the NPPES registry as of the last update on 2009-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.