Quality Rating: 100 out of 100 score
NPI Status: Active since February 8, 2006
4644 Lincoln Blvd
Marina Del Rey,
Post Code: 90292
Phone: (310) 390-2420
Fax: (310) 390-2364
Brian Keith Estwick Md is a Ophthalmology in Marina Del Rey, . Brian Keith Estwick Md practices all healthcare services and medical treatments related to Ophthalmology. The NPI Number for Brian Keith Estwick Md is 1003889247. The last update date is 2023-03-07.
Brian Keith Estwick Md's current location address is 4644 Lincoln Blvd, Marina Del Rey, . You can contact this provider via phone number (310) 390-2420 and fax number (310) 390-2364. The mailing address for Brian Keith Estwick Md is 4644 Lincoln Blvd, Marina Del Rey, . To know further, please read the information below!
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.
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|
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The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 0 | 0 | 3 | 8 | 8 | 9 | 2 | 4 | 7 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 0 | 0 | 3 | 16 | 8 | 18 | 2 | 8 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. 20031681828 | |||||||||
| 2 + 0 + 0 + 3 + 1 + 6 + 8 + 1 + 8 + 2 + 8 + 24 = 63 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 63 = 7 | 7 | ||||||||
The NPI number 1003889247 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.
The following 5 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1003819194 | ADVANCED INFUSION SYSTEMS, INC. ADVANCED INFUSION SYSTEMS Organization |
Durable Medical Equipment & Medical Supplies, Parenteral & Enteral Nutrition |
145 E DANA ST MOUNTAIN VIEW, California (CA) 650-961-6355 |
| 1003819863 | DANIEL P. SHEPARD Individual |
Specialist |
910 E STOWELL RD SANTA MARIA, California (CA) 805-347-8779 |
| 1003819988 | CARMEL ORTHOPEDIC & SPORTS THERAPY SOLEDAD ORTHOPEDIC PHYSICAL THERAPY Organization |
Physical Therapist |
245 CROSSROADS BLVD CARMEL, California (CA) 831-620-0744 |
| 1003819566 | JOHN S MILLER Individual |
Psychologist, Clinical |
PO BOX 483 DAVIS, California (CA) 530-758-1580 |
| 1003819301 | ERIC JAMES POULSEN Individual |
Ophthalmology |
1360 E HERNDON AVE FRESNO, California (CA) 559-449-5050 |