Physician Profile
John William Karth, M.D.
Unclaimed ProfileAbout Dr. Karth
John William Karth, M.D. practices ophthalmology in Eugene, OR. John is a 2002 graduate of Johns Hopkins University School of Medicine. John is also listed as specializing in ophthalmology — retina specialist. According to Medicare claims data, John cared for 4,153 Medicare patients across 122,285 services.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (541) 687-1927
- Email not available
Practice Locations
1550 OAK ST STE 7
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
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
122,285 services · 4,153 patients · 20 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug into eye | Procedure | 67028 |
2,842 |
| Removal of membrane of retina with removal of internal limiting membrane of retina | Procedure | 67042 |
20 |
| Repair of detached retina with drainage and removal of eye fluid between lens and retina | Procedure | 67108 |
12 |
| 2d ultrasound scan of eye tissue and structures | Imaging | 76512 |
16 |
| Imaging of retina | Treatment | 92134 |
3,705 |
| Established patient complete exam of visual system | Treatment | 92014 |
287 |
| Exam of retinal blood vessels using a special camera after injection of a dye | Treatment | 92235 |
62 |
| New patient complete exam of visual system | Treatment | 92004 |
55 |
| Photography of the retina | Treatment | 92250 |
50 |
| Injection, faricimab-svoa, 0.1 mg | Drug given | J2777 |
104,400 |
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 ophthalmology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 28 related providers in 4 groups
Other ophthalmology specialists in Eugene 7
Same specialty, same city.
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2002 at Johns Hopkins University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug into eye 6
Providers in OR who bill this service to Medicare most often.
Common questions
What does Dr. Karth specialize in?
Dr. Karth is an ophthalmology in Eugene, OR. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Karth located?
Dr. Karth is listed at 1550 OAK ST STE 7, Eugene, OR 97401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Karth's phone number?
The number on file is (541) 687-1927. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Karth's NPI number?
Dr. Karth's National Provider Identifier is 1588862320. 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. Karth go to medical school?
Dr. Karth attended Johns Hopkins University School of Medicine, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Karth been practicing?
Dr. Karth has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Karth do most often?
According to Medicare billing data, Dr. Karth performs procedures including injection of drug into eye, removal of membrane of retina with removal of internal limiting membrane of retina and repair of detached retina with drainage and removal of eye fluid between lens and retina; reads or performs imaging such as 2d ultrasound scan of eye tissue and structures; 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. Karth confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Karth. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.