Cesar a Sierra MD LLC
NPI 1073702338 · Ophthalmology Physician · Westport, CT
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cesar a Sierra MD LLC is a Ophthalmology Physician organization in Westport, CT (NPI 1073702338).
Provider details
- NPI number
- 1073702338
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Cesar Sierra, Owner(203) 226-1696
- 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 tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-23
- Last updated
- 2018-04-04
Frequently asked questions
- What is Cesar a Sierra MD LLC's NPI number?
- Cesar a Sierra MD LLC's National Provider Identifier (NPI) is 1073702338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Cesar a Sierra MD LLC?
- Cesar a Sierra MD LLC is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Cesar a Sierra MD LLC located?
- Cesar a Sierra MD LLC's practice location on file with NPPES is 125 Kings Hwy N Ste B, Westport, CT 06880-2428.
- What is Cesar a Sierra MD LLC's phone number?
- The practice phone number listed in the NPPES registry for Cesar a Sierra MD LLC is (203) 226-1696.
- Does Cesar a Sierra MD LLC accept Medicare?
- Cesar a Sierra MD LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Cesar a Sierra MD LLC?
- The authorized official listed on Cesar a Sierra MD LLC's NPPES record is Cesar Sierra, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Cesar a Sierra MD LLC's NPI active?
- Yes — Cesar a Sierra MD LLC's NPI (1073702338) is active in the NPPES registry as of the last update on 2018-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.