1. Home
  2. Directory
  3. NPI Profile

ROSA ALEXANDRA LOZADA SIERRA M.D.
NPI 1154707206
Ophthalmology - Cornea and External Diseases Specialist in San Juan, PR

Active since July 30, 2015PECOS Enrolled
239 AVE ARTERIAL HOSTOS STE 306, SAN JUAN, PR 00918(787) 250-1746 Get Directions Write a Review

NPPES record last updated: November 10, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 10, 2021, Jul 14, 2020, May 18, 2020 (3 updates tracked since 2020).

About Rosa Alexandra Lozada Sierra M.d. NPPES

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

ROSA ALEXANDRA LOZADA SIERRA M.D. (NPI 1154707206) is an individual cornea and external diseases specialist in San Juan, Puerto Rico, licensed in Puerto Rico (19445) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Juan, and is a graduate of University Of Puerto Rico School Of Medicine (2020).

NPPES Registry Identity

NPI1154707206
Entity TypeIndividualFemale
Primary Taxonomy207WX0120X
Provider Legal NameROSA ALEXANDRA LOZADA SIERRACredential: M.D.
Location Address239 AVE ARTERIAL HOSTOS STE 306San Juan, PR 00918-1475
Mailing AddressPo Box 845347Dallas, TX 75284-5347
Phone(787) 250-1746
Sole ProprietorYes
Medical School CMSUniversity Of Puerto Rico School Of MedicineGraduated 2020
Enumeration DateJuly 30, 2015
Last NPPES UpdateNovember 10, 20213 updates tracked since enumeration
NPPES CertifiedNovember 10, 2021
✔ NPI 1154707206 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmology · Cornea and External Diseases SpecialistAllopathic & Osteopathic Physicians
Taxonomy Code207WX0120X
License✔ Licensed in PR · 19445
Definition
An ophthalmologist who specializes in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye.

Secondary Practice Location 1

Location 1708 Ave Ponce De Leon Ste 202San Juan, PR 00918-4520 · Phone (787) 250-0812

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rosa Alexandra Lozada Sierra M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4183048531
PECOS Enrollment IDI20210608001583
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.

Areas of Expertise CMS Part B claims 4

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.

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.
27 services27 patients
Established patient problem focused exam of visual system 92012
This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.
26 services18 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.
25 services13 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.
22 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00918 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 Rosa Lozada Sierra's NPI number?

The NPI number for Rosa Lozada Sierra is 1154707206. It was assigned to this individual provider in the NPPES registry on July 30, 2015.

Where is Rosa Lozada Sierra located?

Rosa Lozada Sierra practices at 239 Ave Arterial Hostos Ste 306, San Juan, PR 00918. The listed phone number is (787) 250-1746.

What is Rosa Lozada Sierra's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.

Is Rosa Lozada Sierra enrolled in Medicare?

Yes. Rosa Lozada Sierra is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Rosa Lozada Sierra was last updated on November 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.