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Edit this profileAt a glance
- 3720 Third Ave, San Diego, CA 92103
About Dr. Warlen
Mark E. Warlen, MD is a healthcare provider in San Diego, CA specializing in ophthalmology. Mark trained at Baylor College of Medicine, graduating in 1992. According to Medicare claims data, Mark cared for 2,527 Medicare patients across 2,831 services. The services billed most often include established patient complete exam of visual system, established patient problem focused exam of visual system, and imaging of optic nerve. This provider record is associated with NPI 1518922178.
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
- (619) 298-7221
- Email not available
Practice Locations
3720 THIRD AVE
San Diego, CA 92103
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
2,831 services · 2,527 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
47 | Less often than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
36 | As often as other peers in Ophthalmology |
| Removal of eyelashes using forceps | Procedure | 67820 |
26 | As often as other peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
57 | More often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
921 | More often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
479 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
433 | More than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
338 | More often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
320 | More often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
125 | 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.
Other eye doctors in San Diego 8
Same specialty, same city.
Trained at Baylor College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Baylor College of Medicine 7
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Warlen?
Dr. Warlen 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
What is Dr. Warlen's address?
Dr. Warlen is listed at 3720 Third Ave, San Diego, CA 92103. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Warlen?
The number on file is (619) 298-7221. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Warlen's NPI number?
Dr. Warlen's National Provider Identifier is 1518922178. 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. Warlen train?
Dr. Warlen attended Baylor College of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Warlen been practicing?
Dr. Warlen has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Warlen perform?
According to Medicare billing data, Dr. Warlen performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and removal of eyelashes using forceps; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient complete exam of visual system and established patient problem focused exam of visual system. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Warlen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Warlen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.