William Paul Buxton, - Medicare Anesthesiology in San Francisco, CA

William Paul Buxton, is a medicare enrolled "Anesthesiology" physician in San Francisco, California. His current practice location is 500 Parnassus Ave # Mue409, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 476-9035.

William Paul Buxton is licensed to practice in California (license number F662) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1992392930.

Contact Information

William Paul Buxton,
500 Parnassus Ave # Mue409,
San Francisco, CA 94143-2203
(415) 476-9035
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Paul Buxton
GenderMale
SpecialityAnesthesiology
Location500 Parnassus Ave # Mue409, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1992392930
  • Provider Enumeration Date: 12/23/2020
  • Last Update Date: 12/23/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 7618382524
  • Enrollment ID: I20210225003048

Medical Identifiers

Medical identifiers for William Paul Buxton such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992392930NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology F662 (California)Primary

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 Paul Buxton allows following entities to bill medicare on his behalf.
Entity NameUniversity Of California Sfgh Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366417420
PECOS PAC ID: 5496668410
Enrollment ID: O20031112000551
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUniversity Anesthesia Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528137296
PECOS PAC ID: 2769370535
Enrollment ID: O20040304001219
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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 Paul Buxton 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 Paul Buxton,
435 China Basin St Unit 629,
San Francisco, CA 94158-2173

Ph: (646) 954-1921
William Paul Buxton,
500 Parnassus Ave # Mue409,
San Francisco, CA 94143-2203

Ph: (415) 476-9035

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.

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