Quality Rating: 100 out of 100 score
NPI Status: Active since February 13, 2006
30 Medical Center Blvd Ste 104
Chester,
Post Code: 19013
Phone: (610) 874-5261
Fax: (610) 874-0318
Christopher Alan Williams M.d. is a Ophthalmology in Chester, . Christopher Alan Williams M.d. practices all healthcare services and medical treatments related to Ophthalmology. The NPI Number for Christopher Alan Williams M.d. is 1225001845. The last update date is 2020-11-01.
Christopher Alan Williams M.d.'s current location address is 30 Medical Center Blvd Ste 104, Chester, . You can contact this provider via phone number (610) 874-5261 and fax number (610) 874-0318. The mailing address for Christopher Alan Williams M.d. is 30 Medical Center Blvd Ste 104, Chester, . 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 |
|---|---|---|---|
| 01139430201 | MEDICAID (05) | Pennsylvania (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 | 2 | 2 | 5 | 0 | 0 | 1 | 8 | 4 | 5 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 4 | 5 | 0 | 0 | 2 | 8 | 8 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. 224500288 | |||||||||
| 2 + 2 + 4 + 5 + 0 + 0 + 2 + 8 + 8 + 24 = 55 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 55 = 5 | 5 | ||||||||
The NPI number 1225001845 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 |
|---|---|---|---|
| 1134122286 | TRACEY ROESING Individual |
Family Medicine |
500 OLD YORK ROAD JENKINTOWN, Pennsylvania (PA) 215-481-2725 |
| 1124021167 | SUSAN LOUISE DILLMUTH-MILLER Individual |
Audiologist |
1436 OAKCREST LN COPLAY, Pennsylvania (PA) 610-502-0821 |
| 1144223173 | ARMANDO C SCIULLO Individual |
Surgery |
647 N BROAD STREET EXT STE 205 GROVE CITY, Pennsylvania (PA) 724-450-7004 |
| 1093718017 | CHRISTOPHER JOSEPH LYONS Individual |
Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery |
479 THOMAS JONES WAY EXTON, Pennsylvania (PA) 610-280-9999 |
| 1043213226 | ROBERT DAVID ARONOFF Individual |
Internal Medicine, Cardiovascular Disease |
PO BOX 858 HERSHEY, Pennsylvania (PA) 800-243-1455 |