DR. CARLOS JAVIER FERNANDEZ SANTOS M.D.
NPI 1649566977
Ophthalmology - Retina Specialist in Caguas, PR

Q: What is Carlos Fernandez Santos's NPI number?

The NPI number for Carlos Fernandez Santos is 1649566977. It was assigned to this individual provider in the NPPES registry on June 24, 2011.

Q: What is Carlos Fernandez Santos's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Active since June 24, 2011PECOS EnrolledAccepts Medicare Assignment

PLAZA BAIROA, PR-1 CALLE SAKURA, STE 245, CAGUAS, PR 00725(787) 641-3030 Get Directions Write a Review

NPPES record last updated: August 4, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 9, 2020, Apr 7, 2019, Jan 4, 2017 and 2 more (5 updates tracked since 2016).

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About Dr. Carlos Javier Fernandez Santos M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CARLOS JAVIER FERNANDEZ SANTOS M.D. (NPI 1649566977) is an individual retina specialist in Caguas, Puerto Rico, licensed in Puerto Rico (19484) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS and is a graduate of University Central Del Caribe Escuela De Medicina (2011).

NPPES Registry Identity

NPI1649566977

Entity TypeIndividualMale

Primary Taxonomy207WX0107X

Provider Legal NameDR. CARLOS JAVIER FERNANDEZ SANTOSCredential: M.D.

Location AddressPLAZA BAIROA, PR-1 CALLE SAKURA, STE 245Caguas, PR 00725-0072

Mailing AddressPlaza Bairoa, 1 Ave Fomento Suite 1Caguas, PR 00725 · (787) 641-3030

Phone(787) 641-3030

Sole ProprietorYes

Medical School CMSUniversity Central Del Caribe Escuela De MedicinaGraduated 2011

Enumeration DateJune 24, 2011

Last NPPES UpdateAugust 4, 20235 updates tracked since enumeration

NPPES CertifiedAugust 3, 2023

✔ NPI 1649566977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0107X

License✔ Licensed in PR · 19484

Definition

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

Also ListedOphthalmologyTaxonomy 207W00000X · License 19484 (PR)

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Carlos Javier Fernandez Santos M.d. 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.

PECOS PAC ID8527341999

PECOS Enrollment IDI20170208002539

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Carlos Fernandez Santos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Puerto Rico Eye Institute

Retina Specialist

PLAZA BAIROA STE 245, AVE SAKURA PR#1
Caguas, PR 00725

Reassigned Medicare billing, Puerto Rico enrollment
7 clinicians in this Medicare group

NPI 1548723158 (787) 641-3030

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

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.

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

145 services73 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

140 services85 patients

Extended exam of the back part of the eye with optic nerve drawing 92202

This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.

140 services78 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

32 services16 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

30 services16 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

29 services29 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

27 services25 patients

Microfluid analysis of tears 83861

Microfluid analysis of tears involves collecting a small tear sample to examine its composition. This procedure can help detect health issues like dry eye disease, inflammation, or other eye conditions. It's a non-invasive, painless method for monitoring eye health.

25 services13 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

19 services18 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

17 services16 patients

Photography of content of eyes 92285

Photography of the content of eyes, also known as ocular photography, captures detailed images of different parts of the eye. It helps identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. The process is non-invasive and painless.

13 services13 patients

Extended exam of the back part of the eye with retinal drawing 92201

This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00725 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$130.65 typical visit price

range $56.86 – $172.44

Typical copayment $32.66 (range $14.21 – $43.11)

Most-billed visit code 99204

Established Patient

$70.88 typical visit price

range $18.24 – $140.44

Typical copayment $17.72 (range $4.56 – $35.11)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Carlos Fernandez Santos's NPI number?

The NPI number for Carlos Fernandez Santos is 1649566977. It was assigned to this individual provider in the NPPES registry on June 24, 2011.

Where is Carlos Fernandez Santos located?

Carlos Fernandez Santos practices at Plaza Bairoa Pr-1 Calle Sakura, Ste 245, Caguas, PR 00725. The listed phone number is (787) 641-3030.

What is Carlos Fernandez Santos's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Carlos Fernandez Santos enrolled in Medicare?

Yes. Carlos Fernandez Santos 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.

Which organization bills Medicare for Carlos Fernandez Santos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carlos Fernandez Santos reassigns Medicare benefits to Puerto Rico Eye Institute (Caguas, PR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Carlos Fernandez Santos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Carlos Fernandez Santos was last updated on August 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.