Physician Profile
Walter Nieves, MD practices ophthalmology in Isabela, PR. Walter is a 1994 graduate of University of Puerto Rico School of Medicine. According to Medicare claims data, the services billed most often include established patient problem focused exam of visual system.
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.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3285 AVE MILITAR
Isabela, PR 00662
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.
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
25 services · 18 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient problem focused exam of visual system | Treatment | 92012 |
25 | 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.
Dr. Nieves is an eye doctor in Isabela, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Dr. Nieves is listed at 3285 Ave Militar, Isabela, PR 00662. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (787) 830-5784. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Nieves's National Provider Identifier is 1225007453. 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
Dr. Nieves attended University of Puerto Rico School of Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
Dr. Nieves has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Nieves provides treatments such as established patient problem focused exam of visual system. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nieves. 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.