Vivien Tham, MD
NPI 1740372234 · Ophthalmology Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivien Tham, MD is a Ophthalmology Physician provider in Honolulu, HI (NPI 1740372234).
Provider details
- NPI number
- 1740372234
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD-12121 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,130 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 1,380 | $4 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 558 | $140 |
| Photography of the Retina92250 | 352 | $40 |
| Imaging of Retina92134 | 320 | $43 |
| Photography of Content of Eyes92285 | 301 | $26 |
| Ct Scan of Cornea92025 | 218 | $37 |
| Exam of Visual Field With Extended Testing |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 263 | 78 |
| Prednisolone Acetate | 255 | 143 |
| Valacyclovir Hclbrand: Valacyclovir | 122 | 42 |
| Latanoprostene Bunodbrand: Vyzulta | 88 | 29 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 77 | 67 |
| Bimatoprostbrand: Lumigan | 73 | 37 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,989 across 53 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
Registry dates
- Enumerated
- 2006-09-29
- Last updated
- 2014-10-28
Frequently asked questions
- What is Vivien Tham's NPI number?
- Vivien Tham's National Provider Identifier (NPI) is 1740372234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivien Tham's specialty?
- Vivien Tham is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Vivien Tham located?
- Vivien Tham's practice location on file with NPPES is 1401 S Beretania St, Honolulu, HI 96814-1870.
- What is Vivien Tham's phone number?
- The practice phone number listed in the NPPES registry for Vivien Tham is (808) 428-3288.
- Does Vivien Tham accept Medicare?
- Vivien Tham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivien Tham's NPI active?
- Yes — Vivien Tham's NPI (1740372234) is active in the NPPES registry as of the last update on 2014-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.