Are you Dr. Karren? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 1550 Oak St, Suite #3, Eugene, OR 97401
About Dr. Karren
Kent A. Karren, MD is a healthcare provider in Eugene, OR specializing in ophthalmology. Kent trained at Medical College of Wisconsin, graduating in 1986. According to Medicare claims data, Kent cared for 1,156 Medicare patients across 1,292 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and imaging of retina. This provider record is associated with NPI 1942208160.
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
- (541) 683-2020
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1550 OAK ST SUITE #3
Eugene, OR 97401
Conditions Commonly Evaluated or Treated
Within Ophthalmology 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
Eye injury and cancer
Inflammation, neurologic, and orbit
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Retina & vitreous
Procedures & services
Cataract and lens
- Cataract surgery with lens implant
- Laser-assisted cataract surgery
- Intraocular lens exchange
- YAG laser capsulotomy
Cornea and refractive
Emergency and minor
- Corneal rust-ring removal
- Removal of an eye foreign body
- Repair of an eye or eyelid laceration
- Repair of ruptured globe
Examination and imaging
- Eye ultrasound
- Slit-lamp examination
- Visual-field testing
- Corneal topography
- Fluorescein angiography
Eyelid, tear duct, and muscle
- Chalazion removal
- Ectropion repair
- Eyelid surgery
- Tear-duct probing
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Tear-duct bypass surgery
Glaucoma
- Cyclophotocoagulation
- Trabeculectomy
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Retina
Most searched procedures
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
1,292 services · 1,156 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
48 | As often as other peers in Ophthalmology |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
40 | Less often than most peers in Ophthalmology |
| Removal of eyelashes using forceps | Procedure | 67820 |
13 | Less often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
192 | As often as other peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
98 | Less often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
88 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
56 | As often as other peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
33 | Less often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
23 | Less often than most peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
22 | Less often than most peers in Ophthalmology |
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 eye doctors at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other eye doctors in Eugene 7
Same specialty, same city.
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of recurring cataract in lens capsule using a laser 7
Providers in OR who bill this service to Medicare most often.
Common questions
What is Dr. Karren's specialty?
Dr. Karren is an eye doctor in Eugene, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Dr. Karren?
Dr. Karren is listed at 1550 Oak St Suite #3, Eugene, OR 97401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Karren?
The number on file is (541) 683-2020. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Karren's NPI number?
Dr. Karren's National Provider Identifier is 1942208160. 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
What is Dr. Karren's medical education?
Dr. Karren attended Medical College of Wisconsin, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Karren been practicing?
Dr. Karren has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Karren known for?
According to Medicare billing data, Dr. Karren performs procedures including removal of recurring cataract in lens capsule using a laser, removal of cataract with insertion of prosthetic lens and removal of eyelashes using forceps; provides treatments such as imaging of retina and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Karren confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Karren. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.