Physician Profile
Unclaimed ProfileAbout VIEN
Derek Vien is a healthcare provider in Brunswick, ME specialising in optometry. Derek is also listed as specialising in optometrist. Medicare claims data shows Derek provided 1,551 services to 302 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Vien specialise in?
Dr. Vien is an optometry in Brunswick, ME. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
Where is Dr. Vien located?
Dr. Vien is listed at 242 BATH RD, Brunswick, ME 04011. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Vien's phone number?
The number on file is (207) 389-3525. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Vien?
Dr. Vien's National Provider Identifier is 1851077101. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Vien go to medical school?
Dr. Vien attended Other, graduating in 2023. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Vien have?
Dr. Vien has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Vien do most often?
According to Medicare billing data, Dr. Vien performs procedures including removal of cataract with insertion of prosthetic lens; provides treatments such as new patient complete exam of visual system and photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Vien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Vien. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (207) 389-3525
- Email not available
Practice Locations
242 BATH RD
Brunswick, ME 04011
Procedures Most Often Billed to Medicare
1,551 services · 302 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
1,256 |
| New patient complete exam of visual system | Treatment | 92004 |
90 |
| Photography of the retina | Treatment | 92250 |
80 |
| Established patient complete exam of visual system | Treatment | 92014 |
45 |
| Imaging of optic nerve | Treatment | 92133 |
16 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
15 |
| Exam of visual field with extended testing | Treatment | 92083 |
14 |
| Imaging of retina | Treatment | 92134 |
12 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
23 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other optometry specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Other optometry specialists in Brunswick 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2023 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in ME who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.