Cesar Sierra, MD
NPI 1902997240 · Ophthalmology Physician · Westport, CT
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cesar Sierra, MD is a Ophthalmology Physician provider in Westport, CT (NPI 1902997240).
Provider details
- NPI number
- 1902997240
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 040323 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
961 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 245 | $95 |
| Photography of Content of Eyes92285 | 132 | $25 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 118 | $174 |
| Probing of Nasal Tear Duct68840 | 91 | $158 |
| Removal of Growth of Eyelid67840 | 58 | $162 |
| Repair of Wound of Eyelids, Nose, Ears, Or Lips By Transferring Skin, 10.0 Sq Cm Or Less14060 | 56 | $729 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Erythromycin Basebrand: Erythromycin | 133 | 88 |
| Cephalexin | 56 | 44 |
| Cyclosporinebrand: Restasis | 19 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 18 | 15 |
| Azithromycin | 17 | 13 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 16 | 15 |
| Methylprednisolone | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2007-09-26
Frequently asked questions
- What is Cesar Sierra's NPI number?
- Cesar Sierra's National Provider Identifier (NPI) is 1902997240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cesar Sierra's specialty?
- Cesar Sierra is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Cesar Sierra located?
- Cesar Sierra's practice location on file with NPPES is 162 Kings Hwy N, Westport, CT 06880-2425.
- What is Cesar Sierra's phone number?
- The practice phone number listed in the NPPES registry for Cesar Sierra is (203) 226-1696.
- Does Cesar Sierra accept Medicare?
- Cesar Sierra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cesar Sierra's NPI active?
- Yes — Cesar Sierra's NPI (1902997240) is active in the NPPES registry as of the last update on 2007-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.