Physician Profile
Alan C. Westeren, M.D.
Unclaimed ProfileAbout Dr. Westeren
Alan C. Westeren, M.D. is a healthcare provider in San Diego, CA specializing in ophthalmology. Alan trained at Georgetown University School of Medicine, graduating in 1993. Medicare claims data shows Alan provided 777 services to 171 patients. The services billed most often include prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and extended exam of the back part of the eye with optic nerve drawing.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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
- (858) 673-2277
- Email not available
Practice Locations
16486 BERNARDO CENTER DR SUITE C-150
San Diego, CA 92128
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
777 services · 171 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Extended exam of the back part of the eye with optic nerve drawing | Treatment | 92202 |
83 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
64 | As often as other peers in Ophthalmology |
| Extended exam of the back part of the eye with retinal drawing | Treatment | 92201 |
57 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
28 | Less often than most peers in Ophthalmology |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
413 | More than most peers in Ophthalmology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
132 | More 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.
Related specialists at this location 1
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.
Other eye doctors in San Diego 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Extended exam of the back part of the eye with optic nerve drawing 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Alan C. Westeren's specialty?
Alan C. Westeren is an eye doctor in San Diego, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Alan C. Westeren?
Alan C. Westeren is listed at 16486 Bernardo Center Dr Suite C-150, San Diego, CA 92128. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Alan C. Westeren?
The number on file is (858) 673-2277. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Alan C. Westeren?
Alan C. Westeren's National Provider Identifier is 1962513135. 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 Alan C. Westeren's education?
Alan C. Westeren attended Georgetown University School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Alan C. Westeren have?
Alan C. Westeren has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What is Alan C. Westeren known for?
According to Medicare billing data, Alan C. Westeren provides treatments such as extended exam of the back part of the eye with optic nerve drawing and exam of visual field with extended testing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Alan C. Westeren's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Alan C. Westeren. 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.