Duy Lam, O.D.
NPI 1407089949 · Optometrist · Cary, NC
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duy Lam, O.D. is a Optometrist provider in Cary, NC (NPI 1407089949).
Provider details
- NPI number
- 1407089949
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- OEG002295 (PA)
Specialties & taxonomies
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 tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,081 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 2,669 | $1 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 173 | $53 |
| Established Patient Problem Focused Exam of Visual System92012 | 57 | $83 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 47 | $85 |
| Established Patient Complete Exam of Visual System92014 | 29 | $117 |
| Exam of Visual Field With Extended Testing92083 | 28 |
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 |
|---|---|---|
| Latanoprost | 65 | 22 |
| Bimatoprostbrand: Lumigan | 41 | 14 |
| Timolol Maleate | 29 | 11 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 28 | — |
| Brinzolamide | 18 | — |
| Brimonidine Tartrate | 14 | — |
| Dorzolamide Hcl | 12 | — |
Medicare Part D only. 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$279 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 3551 Dunn RdSuite 103Eastover, NC 28312-8794Phone: (910) 484-2284Fax: (910) 484-1673
- 1225 Carthage StSanford, NC 27330-8984Phone: (919) 774-3556Fax: (919) 774-7356
Registry dates
- Enumerated
- 2009-09-01
- Last updated
- 2019-01-18
Frequently asked questions
- What is Duy Lam's NPI number?
- Duy Lam's National Provider Identifier (NPI) is 1407089949, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duy Lam's specialty?
- Duy Lam is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Duy Lam located?
- Duy Lam's practice location on file with NPPES is 720 Se Maynard Rd, Cary, NC 27511-5720.
- What is Duy Lam's phone number?
- The practice phone number listed in the NPPES registry for Duy Lam is (919) 467-0959.
- Does Duy Lam accept Medicare?
- Duy Lam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duy Lam's NPI active?
- Yes — Duy Lam's NPI (1407089949) is active in the NPPES registry as of the last update on 2019-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.