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Edit this profileAt a glance
- 242 Bath Rd, Brunswick, ME 04011
About Derek Vien
Derek Vien is a healthcare provider in Brunswick, ME specializing in optometry. Derek is also listed as specializing in optometrist. Medicare claims data shows Derek provided 1,551 services to 302 patients. The services billed most often include removal of cataract with insertion of prosthetic lens, new patient complete exam of visual system, and photography of the retina. This provider record is associated with NPI 1851077101.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (207) 389-3525
- Email not available
Practice Locations
242 BATH RD
Brunswick, ME 04011
Conditions Commonly Evaluated or Treated
Within Optometry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Contact lens issues
Cornea conditions
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
Eye infections
Eye inflammation
Eye injuries
Eye irritation
Eye surface issues
Eyelid conditions
Eyelid issues
Pediatric eye conditions
Pupil issues
Tear duct issues
Vision changes
- Blurry Vision
- Color Blindness
- Distorted Vision
- Double Vision
- Eye Floaters and Flashes
- Eye Strain
- Farsightedness
- Halos Around Lights
- Light Sensitivity
- Night Blindness
- Posterior vitreous detachment
- Tunnel Vision
- Visual Migraines
Procedures & services
Most searched procedures
Contact lens exams
- Bifocal or Multifocal Contact Lens Fitting
- Contact Lens Training
- Plano (Non-Prescription) Colored Contact Lens Exam
- Toric Contact Lens Fitting
Dry eye treatments
Examinations
- Comprehensive medical eye examination
- Diabetic Eye Exam
- DMV Vision Test
- Low Vision Assessment
- Pediatric Eye Exam
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
- Blue Light Glasses Consultation
- Eyeglass Frame Adjustment and Repair
- Prescription Sunglasses Consultation
- Prism Eyeglasses Fitting
Imaging & tests
- Color Vision Testing
- Corneal topography
- Coronary optical coherence tomography
- Eye-pressure measurement
- Pachymetry
- Retinal photography
- Visual Field Test
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
Procedures Most Often Billed to Medicare
1,551 services · 302 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
1,256 | More often than most peers in Optometry |
| New patient complete exam of visual system | Treatment | 92004 |
90 | More than most peers in Optometry |
| Photography of the retina | Treatment | 92250 |
80 | More often than most peers in Optometry |
| Established patient complete exam of visual system | Treatment | 92014 |
45 | Less often than most peers in Optometry |
| Imaging of optic nerve | Treatment | 92133 |
16 | Less often than most peers in Optometry |
| Established patient problem focused exam of visual system | Treatment | 92012 |
15 | Less often than most peers in Optometry |
| Exam of visual field with extended testing | Treatment | 92083 |
14 | Less often than most peers in Optometry |
| Imaging of retina | Treatment | 92134 |
12 | Less often than most peers in Optometry |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
23 | Less often than most peers in Optometry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related 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.
Common questions
What does Derek Vien specialize in?
Derek Vien is an optometry in Brunswick, ME. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Derek Vien located?
Derek 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 Derek Vien's phone number?
The number on file is (207) 389-3525. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Derek Vien?
Derek 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 Derek Vien train?
Derek Vien attended Other, graduating in 2023. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Derek Vien have?
Derek Vien has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.
CMS public data
What does Derek Vien do most often?
According to Medicare billing data, Derek 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 Derek Vien's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Derek Vien. If this is you, claiming it is free.
Guide.md
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