BRIAN KEITH ESTWICK MD
NPI 1003889247
Ophthalmology in Marina Del Rey, CA

NPI Status: Active since February 08, 2006

Contact Information

4644 LINCOLN BLVD
STE #430
MARINA DEL REY, CA
ZIP 90292
Phone: (310) 390-2420
Fax: (310) 390-2364

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  • Individual
  • Male
  • Ophthalmology
  • PECOS Enrolled

About BRIAN ESTWICK

This page provides the complete NPI Profile along with additional information for Brian Estwick, a provider established in Marina Del Rey, California with a medical specialization in Ophthalmology. The healthcare provider is registered in the NPI registry with number 1003889247 assigned on February 2006. The practitioner's primary taxonomy code is 207W00000X with license number A41775 (CA). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1003889247
Provider Name
BRIAN KEITH ESTWICK MD
Gender
Male
Entity Type
Individual
Location Address
4644 LINCOLN BLVD STE #430 MARINA DEL REY, CA 90292
Location Phone
(310) 390-2420
Location Fax
(310) 390-2364
Mailing Address
4644 LINCOLN BLVD STE #430 MARINA DEL REY, CA 90292
Mailing Phone
(310) 390-2420
Mailing Fax
(310) 390-2364
Is Sole Proprietor?
No
Enumeration Date
02-08-2006
Last Update Date
03-07-2023
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Ophthalmologists like Brian Estwick specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
A41775
License State
CA
Taxonomy Description
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.

Medicare Participation & PECOS Enrollment Status

Brian Estwick is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 38 times for 28 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 122 times for 80 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 86 times for 75 patients

Exam of the internal drainage system of eye

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

This service was performed 22 times for 19 patients

Exam of visual field with extended testing

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

This service was performed 13 times for 13 patients

Imaging of optic nerve

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

This service was performed 22 times for 21 patients

Imaging of retina

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.

This service was performed 37 times for 31 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 18 times for 18 patients

Photography of the retina

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

This service was performed 46 times for 43 patients

Ultrasound scan of cornea to determine thickness

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

This service was performed 20 times for 18 patients

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 90292 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $142.39
  • Minimum New Patient Price $62.96
  • Maximum New Patient Price $187.6
  • Average New Patient Copayment $35.59
  • Minimum New Patient Copayment $15.74
  • Maximum New Patient Copayment $46.9

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $77.96
  • Minimum Established Patient Price $20.84
  • Maximum Established Patient Price $153.61
  • Average Established Patient Copayment $19.49
  • Minimum Established Patient Copayment $5.21
  • Maximum Established Patient Copayment $38.4

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1003889247, we treat the final digit (7) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
4
Doubled → 8
Check
7
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 8 → 16 → 7 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 0 + 3 + 1 + 6 + 8 + 1 + 8 + 2 + 8 + 24 = 63

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1003889247.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Orthopaedic Surgery
4644 LINCOLN BLVD, SUITE 101
MARINA DEL REY, CA 90292
Orthopaedic Surgery
4644 LINCOLN BLVD, SUITE 101
MARINA DEL REY, CA 90292
Orthopaedic Surgery (Hand Surgery)
4644 LINCOLN BLVD, SUITE 101
MARINA DEL REY, CA 90292
Internal Medicine
4644 LINCOLN BLVD, #111
MARINA DEL REY, CA 90292
Internal Medicine
4644 LINCOLN BLVD, #113
MARINA DEL REY, CA 90292
Family Medicine
4644 LINCOLN BLVD, #408
MARINA DEL REY, CA 90292
Surgery
4644 LINCOLN BLVD, STE 450
MARINA DEL REY, CA 90292
Internal Medicine
4644 LINCOLN BLVD, #11
MARINA DEL REY, CA 90292
Internal Medicine
4644 LINCOLN BLVD, 114
MARINA DEL REY, CA 90292
Pain Medicine (Interventional Pain Medicine)
4644 LINCOLN BLVD, SUITE 424
MARINA DEL REY, CA 90292
Psychiatry & Neurology (Neurology)
4644 LINCOLN BLVD, SUITE 404
MARINA DEL REY, CA 90292
Ophthalmology
4644 LINCOLN BLVD, SUITE 430
MARINA DEL REY, CA 90292
Physician Assistant
4644 LINCOLN BLVD, SUITE 552
MARINA DEL REY, CA 90292
Dietitian, Registered
4644 LINCOLN BLVD, SUITE 409
MARINA DEL REY, CA 90292
Anesthesiology (Pain Medicine)
4644 LINCOLN BLVD, 424
MARINA DEL REY, CA 90292
Orthopaedic Surgery
4644 LINCOLN BLVD
MARINA DEL REY, CA 90292
Family Medicine
4644 LINCOLN BLVD, SUITE 408
MARINA DEL REY, CA 90292
Internal Medicine (Nephrology)
4644 LINCOLN BLVD, STE 540
MARINA DEL REY, CA 90292
Non-Pharmacy Dispensing Site
4644 LINCOLN BLVD, SUITE 450
MARINA DEL REY, CA 90292
Orthopaedic Surgery
4644 LINCOLN BLVD, SUITE 101
MARINA DEL REY, CA 90292

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003889247, enumerated as an "individual" on February 08, 2006.

The provider is located at 4644 LINCOLN BLVD STE #430 MARINA DEL REY, CA 90292 and the phone number is (310) 390-2420.

Ophthalmology with taxonomy code 207W00000X.