DR. CESAR A SIERRA MD
NPI 1902997240
Ophthalmology in Westport, CT

Q: What is Cesar Sierra's NPI number?

The NPI number for Cesar Sierra is 1902997240. It was assigned to this individual provider in the NPPES registry on September 28, 2006.

Q: What is Cesar Sierra's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Cesar Sierra was last updated on September 26, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.

Active since September 28, 2006PECOS EnrolledAccepts Medicare Assignment

162 KINGS HWY N, WESTPORT, CT 06880(203) 226-1696(203) 226-7799 Get Directions Write a Review

NPPES record last updated: September 26, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Cesar A Sierra Md NPPES

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

DR. CESAR A SIERRA MD (NPI 1902997240) is an individual ophthalmology provider in Westport, Connecticut, licensed in Connecticut (040323) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of University Central Del Caribe Escuela De Medicina (1996).

NPPES Registry Identity

NPI1902997240

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. CESAR A SIERRACredential: MD

Location Address162 KINGS HWY NWestport, CT 06880-2425

Mailing Address162 Kings Hwy NWestport, CT 06880-2425 · (203) 226-1696 · Fax (203) 226-7799

Phone(203) 226-1696

Fax(203) 226-7799

Sole ProprietorYes

Medical School CMSUniversity Central Del Caribe Escuela De MedicinaGraduated 1996

Enumeration DateSeptember 28, 2006

Last NPPES UpdateSeptember 26, 2007

✔ NPI 1902997240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CT · 040323

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

162 KINGS HWY N, Westport, CT 06880

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Other Identifiers 1

Medicare UPINH21742CT

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Cesar A Sierra Md 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 ID8123070083

PECOS Enrollment IDI20050218000472

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 17

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.

Injection, onabotulinumtoxina, 1 unit J0585

Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.

3,760 services15 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

245 services125 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.

132 services121 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

118 services118 patients

Probing of nasal tear duct 68840

Probing of the nasal tear duct is a procedure to treat blocked tear ducts. A thin, flexible instrument is gently inserted into the tear duct to clear any obstruction, allowing tears to drain normally again. This procedure is typically quick and can help to alleviate symptoms like excessive tearing or infection.

91 services40 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

85 services15 patients

Removal of growth of eyelid 67840

The removal of an eyelid growth is a procedure performed to eliminate abnormal tissue from your eyelid. It's generally a quick, outpatient treatment. The doctor numbs your eyelid, carefully removes the growth, and may stitch the area if necessary. This can help maintain eye health and vision.

58 services34 patients

Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less 14060

This procedure involves repairing a wound on the eyelids, nose, ears, or lips by moving a small piece of skin (10.0 sq cm or less) from one area to another. The goal is to heal the wound and restore the function and appearance of the affected area.

56 services32 patients

Exam of visual field with limited testing 92081

An exam of the visual field with limited testing is a quick check of your peripheral vision. It involves identifying objects or movements at the edge of your sight, helping to detect any vision loss that isn't obvious, such as blind spots or areas of reduced vision.

45 services37 patients

Diagnostic exam of nasal passages using an endoscope 31231

A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.

38 services19 patients

Injection of chemical for paralysis of nerve muscles on side of face 64612

This procedure involves injecting a chemical into specific facial nerves, causing temporary muscle paralysis. It's used to treat conditions like facial spasms or wrinkles. The effects are usually temporary, requiring repeat treatments.

38 services15 patients

Removal of up to 1/4 of eyelid margin and repair of eyelid 67961

This procedure involves the careful removal of up to a quarter of the eyelid margin. It's often done to treat certain eye conditions or injuries. After removal, the eyelid is expertly repaired to restore its function and appearance.

32 services21 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

31 services26 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

21 services15 patients

Suture repair of turning-outward upper or lower eyelid defect 67914

Suture repair of an outward-turning eyelid defect is a procedure to correct a condition where the upper or lower eyelid turns outwards. During this procedure, the doctor makes a small incision and uses sutures to tighten the eyelid and restore its normal position.

21 services13 patients

Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.6-1.0 cm 11441

This procedure involves the removal of a noncancerous skin growth on areas of the face such as the nose, lips, mouth, ears, or eyelids. The growth size is between 0.6-1.0 cm. The goal is to improve comfort, function, or appearance.

19 services12 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06880 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

$138.84 typical visit price

range $60.82 – $183.10

Typical copayment $34.71 (range $15.20 – $45.77)

Most-billed visit code 99204

Established Patient

$75.55 typical visit price

range $19.76 – $149.26

Typical copayment $18.88 (range $4.94 – $37.31)

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.

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Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SAMUEL FRUMKIN M.D.

Internal Medicine

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 226-0731

MISS ANNE-MARIE SABINE LEZEAU RN, PMHNP, DNP

Nurse Practitioner (Psychiatric/Mental Health)

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 937-2309

HEALTH CORE GROUP, LLC

Clinic/Center (Rehabilitation, Substance Use Disorder)

162 KINGS HWY N, SUITE A
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 293-1589

ADULT & PEDIATRIC DERMATOLOGY SPECIALISTS, P.C.

Dermatology

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 222-0198

AI-TRAM NGOC BUI MD

Dermatology

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (475) 471-1050

DR. RANDI S. ROTH PH.D.

Psychologist

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 984-2222

MS. HOLLY CHRISTINE MEHNE MSW

Social Worker (Clinical)

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 293-1723

JANAKI AMIN DPT

Physical Therapist

162 KINGS HWY N
WESTPORT, CT 06880

Western Connecticut Planning Region (203) 349-8430

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 Cesar Sierra's NPI number?

The NPI number for Cesar Sierra is 1902997240. It was assigned to this individual provider in the NPPES registry on September 28, 2006.

Where is Cesar Sierra located?

Cesar Sierra practices at 162 Kings Hwy N, Westport, CT 06880. The listed phone number is (203) 226-1696.

What is Cesar Sierra's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Cesar Sierra enrolled in Medicare?

Yes. Cesar Sierra 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.

When was this NPI record last updated?

The NPPES record for Cesar Sierra was last updated on September 26, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.