Are you Dr. Gutmark? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 210 S Grand Ave, #106, Glendora, CA 91741
About Dr. Gutmark
Based in Glendora, CA, Ron Gutmark, MD is listed in the NPI registry under ophthalmology. Ron is also listed as specializing in internal medicine. Medicare claims data shows Ron provided 55 services to 41 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1609189893 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (626) 335-0535
- Email not available
Practice Locations
210 S GRAND AVE #106
Glendora, CA 91741
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
- Epiretinal membrane
- Retinal detachment
Eye injuries
Inflammation, neurologic, and orbit
- Thyroid eye disease
- Uveitis
Retina & vitreous
Procedures & services
Most searched procedures
- Cataract surgery
- Eye exam
- LASIK
- Retina surgery
Examination and imaging
- Corneal topography
- Fluorescein angiography
Cataract and lens
- Intraocular lens exchange
- YAG laser capsulotomy
Corneal procedures
- Amniotic Membrane Eye Graft
Eye diagnostics
Eye injuries
- Eye Scratch Laceration Repair
- Foreign Object Removal from Eye
Eyelid surgery
Eyelid, tear duct, and muscle
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Eyelid surgery
- Tear-duct bypass surgery
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
- Laser Floater Removal
Laser procedures
- Laser Treatment for Retinal Tear
Laser vision correction
- SMILE Eye Surgery
Refractive surgery
- Clear Lens Exchange
- Implantable Contact Lenses
Tear duct & Orbit
- Orbital Decompression Surgery
- Tear Duct Plugs
Procedures Most Often Billed to Medicare
55 services · 41 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
34 | Less often than most peers in Ophthalmology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
21 | 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 3
Same specialty, same street address — most likely the same department or group.
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.
More connections — 3 related providers in 1 group
Other eye doctors in Glendora 3
Same specialty, same city.
Common questions
What is Dr. Gutmark's specialty?
Dr. Gutmark is an eye doctor in Glendora, 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 Dr. Gutmark?
Dr. Gutmark is listed at 210 S Grand Ave #106, Glendora, CA 91741. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Gutmark?
The number on file is (626) 335-0535. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Gutmark?
Dr. Gutmark's National Provider Identifier is 1609189893. 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
How much experience does Dr. Gutmark have?
Dr. Gutmark has 16+ years experience. Registered with an NPI since 2010. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. Gutmark known for?
According to Medicare billing data, Dr. Gutmark the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gutmark's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gutmark. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.