William Mcmahan, CRNA - Medicare Certified Registered Nurse Anesthetist (crna) in Biloxi, MS

William Mcmahan, CRNA is a medicare enrolled "Nurse Anesthetist, Certified Registered" in Biloxi, Mississippi. He graduated from nursing school in 2000 and has 24 years of diverse experience with area of expertise as Certified Registered Nurse Anesthetist (crna). He is a member of the group practice Jackson County Anesthesia, Singing River Health System and his current practice location is 150 Reynoir St, Biloxi, Mississippi. You can reach out to his office (for appointments etc.) via phone at (228) 385-1451.

William Mcmahan is licensed to practice in Mississippi (license number R862339) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1316002587.

Contact Information

William Mcmahan, CRNA
150 Reynoir St,
Biloxi, MS 39530-4130
(228) 385-1451
Not Available

Map and Direction




Provider's Profile

Full NameWilliam Mcmahan
GenderMale
SpecialityCertified Registered Nurse Anesthetist (crna)
Experience24 Years
Location150 Reynoir St, Biloxi, Mississippi
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William Mcmahan graduated from nursing school in 2000
  NPI Data:
  • NPI Number: 1316002587
  • Provider Enumeration Date: 12/27/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8820986995
  • Enrollment ID: I20040309001237

Medical Identifiers

Medical identifiers for William Mcmahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1316002587NPI-NPPES
00122798MedicaidMS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered R862339 (Mississippi)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Singing River Health SystemPascagoula, MSHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Jackson County Anesthesia993129272940
Singing River Health System3870405194156

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. William Mcmahan allows following entities to bill medicare on his behalf.
Entity NameSinging River Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083893937
PECOS PAC ID: 3870405194
Enrollment ID: O20031104000435
Entity NameJackson County Anesthesia
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922159219
PECOS PAC ID: 9931292729
Enrollment ID: O20070913000898
Entity NameSinging River Gulfport
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861010159
PECOS PAC ID: 5294154829
Enrollment ID: O20201001001497
Entity NameSinging River Health System
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1740918937
PECOS PAC ID: 3870405194
Enrollment ID: O20221202000423
Entity NameSinging River Gulfport
Entity TypePart B Supplier - Hospital Department(s)
Entity IdentifiersNPI Number: 1780312504
PECOS PAC ID: 5294154829
Enrollment ID: O20230106000462

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. William Mcmahan is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William Mcmahan, CRNA
Po Box 4595,
Biloxi, MS 39535-4595

Ph: () -
William Mcmahan, CRNA
150 Reynoir St,
Biloxi, MS 39530-4130

Ph: (228) 385-1451

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in Biloxi, MS

Ashley Taylor Johnson, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 150 Reynoir St, Biloxi, MS 39530
Phone: 228-432-1571    
Ronald Allen Davis, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 180 Debuys Rd., Biloxi, MS 39531
Phone: 228-860-0157    Fax: 228-860-0157
Stacy Carr,
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 301 Fisher St, Biloxi, MS 39534
Phone: 228-376-6018    
Allan Quinn, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1720b Medical Park Dr, Biloxi, MS 39532
Phone: 678-553-8150    Fax: 678-553-8152
Donna Michelle Dean, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 1720 Medical Park Dr # B, Biloxi, MS 39532
Phone: 228-702-2000    
Scott Foster Sanders, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 301 Fisher St, Biloxi, MS 39534
Phone: 228-376-6013    
Roy Curtis Gavin, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 2046 Beach Blvd Apt C113, Biloxi, MS 39531
Phone: 318-801-5526    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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