Physician Profile
Aiyin Chen, M.D.
Unclaimed ProfileAbout Dr. Chen
Aiyin Chen, M.D. practices ophthalmology — glaucoma in Portland, OR. Aiyin is a 2008 graduate of University of California, San Francisco School of Medicine. Aiyin is also listed as specializing in ophthalmology. Medicare claims data shows Aiyin provided 574 services to 417 patients. 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, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and exam of visual field with extended testing.
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
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
3303 SW BOND AVE
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
574 services · 417 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Exam of visual field with extended testing | Treatment | 92083 |
95 | Less often than most peers in Ophthalmology — Glaucoma |
| Imaging of optic nerve | Treatment | 92133 |
72 | Less often than most peers in Ophthalmology — Glaucoma |
| Exam of the internal drainage system of eye | Treatment | 92020 |
33 | Less often than most peers in Ophthalmology — Glaucoma |
| Imaging of retina | Treatment | 92134 |
12 | Less often than most peers in Ophthalmology — Glaucoma |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
190 | As often as other peers in Ophthalmology — Glaucoma |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
130 | As often as other peers in Ophthalmology — Glaucoma |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
42 | Less often than most peers in Ophthalmology — Glaucoma |
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 1
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 — 26 related providers in 4 groups
Other eye doctors in Portland 7
Same specialty, same city.
Trained at University of California, San Francisco School of Medicine 4
Other providers in the same specialty who trained at the same institution.
Class of 2008 at University of California, San Francisco School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Exam of visual field with extended testing 7
Providers in OR who bill this service to Medicare most often.
Common questions
What does Aiyin Chen specialize in?
Aiyin Chen 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 — Glaucoma”.
NPI registry
Where is Aiyin Chen located?
Aiyin Chen is listed at 3303 Sw Bond Ave, Portland, OR 97239. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Aiyin Chen's phone number?
The number on file is (503) 494-3000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Aiyin Chen?
Aiyin Chen's National Provider Identifier is 1629305131. 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 Aiyin Chen train?
Aiyin Chen attended University of California, San Francisco School of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Aiyin Chen have?
Aiyin Chen has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What does Aiyin Chen do most often?
According to Medicare billing data, Aiyin Chen provides treatments such as exam of visual field with extended testing and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Aiyin Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Aiyin Chen. 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.