Rosa Lozada Sierra, M.D.
NPI 1154707206 · Cornea and External Diseases Specialist Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosa Lozada Sierra, M.D. is a Cornea and External Diseases Specialist Physician provider in San Juan, PR (NPI 1154707206).
Provider details
- NPI number
- 1154707206
- Entity type
- Individual
- Primary specialty
- Cornea and External Diseases Specialist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 19445 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
100 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Complete Exam of Visual System92004 | 27 | $140 |
| Established Patient Problem Focused Exam of Visual System92012 | 26 | $83 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 25 | $36 |
| Imaging of Retina92134 | 22 | $38 |
Typical Medicare-allowed amounts for these services range $36–$140 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 704 | 368 |
| Ofloxacin | 350 | 250 |
| Ketorolac Tromethamine | 341 | 232 |
| Latanoprost | 312 | 74 |
| Fluorometholone | 192 | 90 |
| Ciprofloxacin Hcl | 136 | 99 |
| Cyclosporinebrand: Restasis | 108 | 31 |
| Bimatoprostbrand: Lumigan | 102 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 708 Ave Ponce De Leon Ste 202San Juan, PR 00918-4520Phone: (787) 250-0812
Registry dates
- Enumerated
- 2015-07-30
- Last updated
- 2021-11-10
- Certified
- 2021-11-10
Frequently asked questions
- What is Rosa Lozada Sierra's NPI number?
- Rosa Lozada Sierra's National Provider Identifier (NPI) is 1154707206, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosa Lozada Sierra's specialty?
- Rosa Lozada Sierra is listed in the NPPES registry with a primary specialty of Cornea and External Diseases Specialist Physician (Allopathic & Osteopathic Physicians).
- Where is Rosa Lozada Sierra located?
- Rosa Lozada Sierra's practice location on file with NPPES is 239 Ave Arterial Hostos Ste 306, San Juan, PR 00918-1475.
- What is Rosa Lozada Sierra's phone number?
- The practice phone number listed in the NPPES registry for Rosa Lozada Sierra is (787) 250-1746.
- Does Rosa Lozada Sierra accept Medicare?
- Rosa Lozada Sierra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosa Lozada Sierra's NPI active?
- Yes — Rosa Lozada Sierra's NPI (1154707206) is active in the NPPES registry as of the last update on 2021-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.