Dr James W Mcilwaine, MD - Medicare Otolaryngology in Washington, MO

Dr James W Mcilwaine, MD is a medicare enrolled "Otolaryngology" physician in Washington, Missouri. He went to University Of Missouri, Columbia School Of Medicine and graduated in 2000 and has 24 years of diverse experience with area of expertise as Otolaryngology. He is a member of the group practice Mercy Clinic Ent Llc and his current practice location is 901 Patients First Dr, Washington, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 390-1570.

Dr James W Mcilwaine is licensed to practice in Missouri (license number 2002002082) 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 1558352443.

Contact Information

Dr James W Mcilwaine, MD
901 Patients First Dr,
Washington, MO 63090-4700
(636) 390-1570
(636) 390-1571

Map and Direction




Physician's Profile

Full NameDr James W Mcilwaine
GenderMale
SpecialityOtolaryngology
Experience24 Years
Location901 Patients First Dr, Washington, Missouri
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:
  • Dr James W Mcilwaine attended and graduated from University Of Missouri, Columbia School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1558352443
  • Provider Enumeration Date: 10/31/2005
  • Last Update Date: 01/23/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 9234168550
  • Enrollment ID: I20050808000454

Medical Identifiers

Medical identifiers for Dr James W Mcilwaine such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1558352443NPI-NPPES
204576300MedicaidMO
P00445875OtherRAILROOAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Y00000XOtolaryngology 2002002082 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital WashingtonWashington, MOHospital
Mercy Hospital St LouisSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Ent Llc75171188137

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. Dr James W Mcilwaine allows following entities to bill medicare on his behalf.
Entity NameMercy Clinic Ent Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366705998
PECOS PAC ID: 7517118813
Enrollment ID: O20121114000539

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. Dr James W Mcilwaine 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
Dr James W Mcilwaine, MD
901 Patients First Dr,
Washington, MO 63090-4700

Ph: (636) 390-1570
Dr James W Mcilwaine, MD
901 Patients First Dr,
Washington, MO 63090-4700

Ph: (636) 390-1570

Reviews and Comments


Otolaryngology Doctors in Washington, MO


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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