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Edit this profileAt a glance
- 415 Chalan San Antonio, Suite 111-113, Tamuning, GU 96913
About Dr. San Nicolas
Marlene R. San Nicolas, O.D. is an optometrist practicing in Tamuning, GU. Marlene trained at Pacific University - College of Optometry, graduating in 1992. Medicare claims data shows Marlene provided 229 services to 219 patients. The services billed most often include established patient complete exam of visual system, new patient complete exam of visual system, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1154381515.
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
- (671) 648-3350
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
415 CHALAN SAN ANTONIO SUITE 111-113
Tamuning, GU 96913
Conditions Commonly Evaluated or Treated
Within Optometry 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
Contact lens issues
Cornea conditions
Corneal issues
Eye conditions
Eye discomfort
Eye diseases
Eye infections
Eye inflammation
Eye injuries
Eye irritation
Eye surface issues
Eyelid conditions
Eyelid issues
Pediatric eye conditions
Pupil issues
Tear duct issues
Vision changes
- Blurry Vision
- Color Blindness
- Distorted Vision
- Double Vision
- Eye Floaters and Flashes
- Eye Strain
- Farsightedness
- Halos Around Lights
- Light Sensitivity
- Night Blindness
- Posterior vitreous detachment
- Tunnel Vision
- Visual Migraines
Procedures & services
Most searched procedures
Contact lens exams
- Bifocal or Multifocal Contact Lens Fitting
- Contact Lens Training
- Plano (Non-Prescription) Colored Contact Lens Exam
- Toric Contact Lens Fitting
Dry eye treatments
Examinations
- Comprehensive medical eye examination
- Diabetic Eye Exam
- DMV Vision Test
- Low Vision Assessment
- Pediatric Eye Exam
Eyelid care
Eyelid treatments
General exams
Glasses and eyewear
- Blue Light Glasses Consultation
- Eyeglass Frame Adjustment and Repair
- Prescription Sunglasses Consultation
- Prism Eyeglasses Fitting
Imaging & tests
- Color Vision Testing
- Corneal topography
- Coronary optical coherence tomography
- Eye-pressure measurement
- Pachymetry
- Retinal photography
- Visual Field Test
Imaging and scans
Minor procedures
Specialty lenses
Surgical evaluations
Tear duct procedures
Therapy
Urgent care
Vision correction
Procedures Most Often Billed to Medicare
229 services · 219 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
128 | More often than most peers in Optometrist |
| New patient complete exam of visual system | Treatment | 92004 |
53 | More often than most peers in Optometrist |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
48 | As often as other peers in Optometrist |
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 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.
Other optometrists in Tamuning 8
Same specialty, same city.
More connections — 15 related providers in 2 groups
Trained at Pacific University - College of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Pacific University - College of Optometry 7
Providers who graduated from the same medical school in the same year.
Common questions
What does Marlene R. San Nicolas specialize in?
Marlene R. San Nicolas is an optometrist in Tamuning, GU. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Marlene R. San Nicolas located?
Marlene R. San Nicolas is listed at 415 Chalan San Antonio Suite 111-113, Tamuning, GU 96913. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Marlene R. San Nicolas's phone number?
The number on file is (671) 648-3350. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marlene R. San Nicolas?
Marlene R. San Nicolas's National Provider Identifier is 1154381515. 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 Marlene R. San Nicolas train?
Marlene R. San Nicolas attended Pacific University - College of Optometry, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marlene R. San Nicolas have?
Marlene R. San Nicolas has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What does Marlene R. San Nicolas do most often?
According to Medicare billing data, Marlene R. San Nicolas provides treatments such as established patient complete exam of visual system and new patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Marlene R. San Nicolas's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marlene R. San Nicolas. If this is you, claiming it is free.
Guide.md
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