Physician Profile
Mark S. Humayun, M.D.
Unclaimed ProfileAbout Dr. Humayun
Based in Los Angeles, CA, Mark S. Humayun, M.D. is listed in the NPI registry under ophthalmology. Mark graduated from Duke University School of Medicine in 1989. Medicare claims data shows Mark provided 418 services to 217 patients. The services billed most often include imaging of retina, established patient complete exam of visual system, and injection of drug into eye.
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.
Contact Information
- (323) 442-6311
- Email not available
Practice Locations
1450 SAN PABLO ST SUITE 4000
Los Angeles, CA 90033
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
418 services · 217 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug into eye | Procedure | 67028 |
89 |
| Imaging of retina | Treatment | 92134 |
168 |
| Established patient complete exam of visual system | Treatment | 92014 |
126 |
| New patient complete exam of visual system | Treatment | 92004 |
21 |
| Photography of the retina | Treatment | 92250 |
14 |
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 4
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 — 30 related providers in 4 groups
Other eye doctors in Los Angeles 8
Same specialty, same city.
Trained at Duke University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at Duke University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug into eye 7
Providers in CA who bill this service to Medicare most often.
Common questions
What does Mark S. Humayun specialize in?
Mark S. Humayun is an eye doctor in Los Angeles, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Mark S. Humayun located?
Mark S. Humayun is listed at 1450 San Pablo St Suite 4000, Los Angeles, CA 90033. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark S. Humayun's phone number?
The number on file is (323) 442-6311. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Mark S. Humayun?
Mark S. Humayun's National Provider Identifier is 1548322381. 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 Mark S. Humayun train?
Mark S. Humayun attended Duke University School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark S. Humayun have?
Mark S. Humayun has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What does Mark S. Humayun do most often?
According to Medicare billing data, Mark S. Humayun performs procedures including injection of drug into eye; provides treatments such as imaging of retina and established patient complete exam of visual system. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark S. Humayun's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark S. Humayun. 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.