WALTER NIEVES MD
NPI 1225007453
Ophthalmology in Isabela, PR
About Walter Nieves Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WALTER NIEVES MD (NPI 1225007453) is an individual ophthalmology provider in Isabela, Puerto Rico, licensed in Puerto Rico (12791) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Puerto Rico School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Walter Nieves Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 00662 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Walter Nieves's NPI number?
The NPI number for Walter Nieves is 1225007453. It was assigned to this individual provider in the NPPES registry on March 17, 2006.
Where is Walter Nieves located?
Walter Nieves practices at 3285 Ave Militar, Isabela, PR 00662. The listed phone number is (787) 830-5784.
What is Walter Nieves's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Walter Nieves enrolled in Medicare?
Yes. Walter Nieves is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Walter Nieves was last updated on March 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Walter Nieves, MD · NPI 1225007453
Ophthalmology physician in Isabela, Puerto Rico. Individual provider, active in the CMS NPPES registry since March 17, 2006.
## Identity
- **NPI:** 1225007453 (Entity type: Individual)
- **Enumerated:** March 17, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 12791 (Puerto Rico)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3285 AVE MILITAR, Isabela, PR 00662-4091
- **Phone:** (787) 830-5784 · **Fax:** (787) 830-2436
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Puerto Rico School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** March 10, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1225007453) · Data from the CMS NPPES public registry.