Quality Rating: 100 out of 100 score
NPI Status: Active since February 6, 2006
8637 Fredericksburg Rd
San Antonio,
Post Code: 78240
Phone: (210) 877-7669
Fax: (210) 617-4075
Efrem L. Castillo M.d. is a Family Medicine in San Antonio, . Efrem L. Castillo M.d. practices all healthcare services and medical treatments related to Family Medicine. The NPI Number for Efrem L. Castillo M.d. is 1003888785. The last update date is 2012-07-19.
Efrem L. Castillo M.d.'s current location address is 8637 Fredericksburg Rd, San Antonio, . You can contact this provider via phone number (210) 877-7669 and fax number (210) 617-4075. The mailing address for Efrem L. Castillo M.d. is 8637 Fredericksburg Rd, San Antonio, . 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 |
|---|---|---|---|
| TXB154545 | Other (non-Medicare) (01) | () | WellMed Medical Group PA |
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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 | 8 | 7 | 8 | 5 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 0 | 0 | 3 | 16 | 8 | 16 | 7 | 16 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. 200316816716 | |||||||||
| 2 + 0 + 0 + 3 + 1 + 6 + 8 + 1 + 6 + 7 + 1 + 6 + 24 = 65 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 65 = 5 | 5 | ||||||||
The NPI number 1003888785 is valid because the calculated check digit 5 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 |
|---|---|---|---|
| 1003888561 | BRITTON MICHAEL DEVILLIER Individual |
Emergency Medicine, Pediatric Emergency Medicine |
801 7TH AVE FORT WORTH, Texas (TX) 682-885-4095 |
| 1003888470 | JOSHUA E LEIF Individual |
Optometrist |
2727 W HOLCOMBE BLVD HOUSTON, Texas (TX) 713-442-0000 |
| 1003888181 | ROBERT JOSEPH REEB Individual |
Radiology, Body Imaging |
815 PENNSYLVANIA AVE FORT WORTH, Texas (TX) 817-321-0312 |
| 1003888173 | JOHN A QUERALT Individual |
Radiology, Vascular & Interventional Radiology |
815 PENNSYLVANIA AVE FORT WORTH, Texas (TX) 817-321-0312 |
| 1003887977 | JAMES MITCHELL DYE Individual |
Surgery |
6133 PARKWAY CORPUS CHRISTI, Texas (TX) 361-881-8333 |