Quality Rating: 100 out of 100 score
NPI Status: Active since July 20, 2005
25480 Point Lookout Rd
Leonardtown,
Post Code: 20650
Phone: (301) 997-0909
Fax: (301) 997-0919
William Michael Mahaffey M.d. is a Surgery in Leonardtown, . William Michael Mahaffey M.d. practices all healthcare services and medical treatments related to Surgery. The NPI Number for William Michael Mahaffey M.d. is 1013916055. The last update date is 2010-06-23.
William Michael Mahaffey M.d.'s current location address is 25480 Point Lookout Rd, Leonardtown, . You can contact this provider via phone number (301) 997-0909 and fax number (301) 997-0919. The mailing address for William Michael Mahaffey M.d. is 25480 Point Lookout Rd, Leonardtown, . 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 |
|---|---|---|---|
| 377741300 | MEDICAID (05) | Maryland (MD) |
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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 | 1 | 3 | 9 | 1 | 6 | 0 | 5 | 5 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 0 | 2 | 3 | 18 | 1 | 12 | 0 | 10 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. 202318112010 | |||||||||
| 2 + 0 + 2 + 3 + 1 + 8 + 1 + 1 + 2 + 0 + 1 + 0 + 24 = 45 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 50 - 45 = 5 | 5 | ||||||||
The NPI number 1013916055 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 |
|---|---|---|---|
| 1013915883 | BRIAN J SULLIVAN Individual |
Neurological Surgery |
1000 BESTGATE RD STE 400 ANNAPOLIS, Maryland (MD) 410-266-2720 |
| 1013915651 | SARABJIT SINGH ANAND Individual |
Surgery |
14201 LAUREL PARK DR LAUREL, Maryland (MD) 301-953-7565 |
| 1013915487 | ANTONI BERNARD GORAL Individual |
Orthopaedic Surgery, Adult Reconstructive Orthopaedic Surgery |
8401 CONNECTICUT AVE CHEVY CHASE, Maryland (MD) 301-949-8100 |
| 1013914159 | SEAN P MANION Individual |
Urology |
25 CROSSROADS DR STE 306 OWINGS MILLS, Maryland (MD) 303-776-1234 |
| 1013913789 | JOHNS HOPKINS UNIVERSITY JHU -ORTHOPAEDIC SURGERY Organization |
Orthopaedic Surgery |
600 N WOLFE ST BALTIMORE, Maryland (MD) 410-933-5300 |