Dr William Dewayne Holmes, MD - Medicare Psychiatry in Austin, TX

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Dr William Dewayne Holmes, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Austin, Texas. He graduated from medical school in 1987 and has 39 years of diverse experience with area of expertise as Psychiatry. His current practice location is 12515 Research Blvd, Bldg 8, Suite 400, Austin, Texas. You can reach out to his office (for appointments etc.) via phone at (210) 241-2691.

Dr William Dewayne Holmes is licensed to practice in Texas (license number H4418) 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 1639348246.

Contact Information

Dr William Dewayne Holmes, MD
12515 Research Blvd, Bldg 8, Suite 400,
Austin, TX 78759-2228
(210) 241-2691
Not Available

Map and Direction




Physician's Profile

Full NameDr William Dewayne Holmes
GenderMale
SpecialityPsychiatry
Experience39 Years
Location12515 Research Blvd, Austin, Texas
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 William Dewayne Holmes graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1639348246
  • Provider Enumeration Date: 02/27/2008
  • Last Update Date: 10/11/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 5597836049
  • Enrollment ID: I20210716001117

Medical Identifiers

Medical identifiers for Dr William Dewayne Holmes such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639348246NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry H4418 (Texas)Primary
2084P0804XPsychiatry & Neurology - Child & Adolescent Psychiatry H4418 (Texas)Secondary

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 William Dewayne Holmes allows following entities to bill medicare on his behalf.
Entity NameAcl Senior Advocates and Care Coordination
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205571486
PECOS PAC ID: 7012372709
Enrollment ID: O20230502002944

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 William Dewayne Holmes 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 William Dewayne Holmes, MD
12515 Research Blvd, Bldg 8, Suite 400,
Austin, TX 78759-2228

Ph: (210) 241-2691		Dr William Dewayne Holmes, MD
12515 Research Blvd, Bldg 8, Suite 400,
Austin, TX 78759-2228

Ph: (210) 241-2691

Reviews and Comments


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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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.