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Edit this profileAt a glance
- 3375 Sw Terwilliger Blvd, Portland, OR 97239
About Dr. Ng
John D. Ng, MD practices ophthalmology in Portland, OR. John is a 1988 graduate of George Washington University School of Medicine. According to Medicare claims data, John cared for 278 Medicare patients across 307 services. The services billed most often include photography of content of eyes, established patient problem focused exam of visual system, and new patient problem focused exam of visual system. The provider's National Provider Identifier (NPI) is 1235181108.
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
- (503) 494-3000
- Email not available
Practice Locations
3375 SW TERWILLIGER BLVD
Portland, OR 97239
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
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
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
307 services · 278 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Extensive repair of turning-outward eyelid defect | Procedure | 67917 |
13 | Less often than most peers in Ophthalmology |
| Photography of content of eyes | Treatment | 92285 |
100 | More often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
83 | As often as other peers in Ophthalmology |
| New patient problem focused exam of visual system | Treatment | 92002 |
39 | More often than most peers in Ophthalmology |
| Exam of visual field with limited testing | Treatment | 92081 |
22 | Less often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
22 | As often as other peers in Ophthalmology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
28 | 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 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 — 29 related providers in 4 groups
Other eye doctors in Portland 7
Same specialty, same city.
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1988 at George Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Extensive repair of turning-outward eyelid defect 6
Providers in OR who bill this service to Medicare most often.
Common questions
What is Dr. Ng's specialty?
Dr. Ng is an eye doctor in Portland, 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. Ng?
Dr. Ng is listed at 3375 Sw Terwilliger Blvd, Portland, OR 97239. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ng?
The number on file is (503) 494-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Ng's NPI number?
Dr. Ng's National Provider Identifier is 1235181108. 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. Ng's medical education?
Dr. Ng attended George Washington University School of Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ng been practicing?
Dr. Ng has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ng known for?
According to Medicare billing data, Dr. Ng performs procedures including extensive repair of turning-outward eyelid defect; provides treatments such as photography of content of eyes and established patient problem focused 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. Ng confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ng. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.