Dr William P Dillon, MD - Medicare Diagnostic Radiology in San Francisco, CA

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Dr William P Dillon, MD is a medicare enrolled "Radiology - Neuroradiology" physician in San Francisco, California. He went to University Of California, Geffen School Of Medicine and graduated in 1978 and has 46 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Ucsf Medical Group Business Services, University Of California San Francisco and his current practice location is 505 Parnassus Ave, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-1668.

Dr William P Dillon is licensed to practice in California (license number G47564) 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 1386609337.

Contact Information

Dr William P Dillon, MD
505 Parnassus Ave,
San Francisco, CA 94143-2204
(415) 353-1668
(415) 353-8593

Map and Direction




Physician's Profile

Full NameDr William P Dillon
GenderMale
SpecialityDiagnostic Radiology
Experience46 Years
Location505 Parnassus Ave, San Francisco, California
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 P Dillon attended and graduated from University Of California, Geffen School Of Medicine in 1978
  NPI Data:
  • NPI Number: 1386609337
  • Provider Enumeration Date: 04/20/2006
  • Last Update Date: 06/06/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 2264517036
  • Enrollment ID: I20080304000927

Medical Identifiers

Medical identifiers for Dr William P Dillon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386609337NPI-NPPES
00G475640MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085N0700XRadiology - Neuroradiology G47564 (California)Primary
2085R0202XRadiology - Diagnostic Radiology G47564 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ucsf Medical CenterSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ucsf Medical Group Business Services37794978701092
University Of California San Francisco44865672291306

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 P Dillon 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: 1063487122
PECOS PAC ID: 5496668410
Enrollment ID: O20031106000503
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 NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513
Entity NameCity & County Of San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982737524
PECOS PAC ID: 1658280748
Enrollment ID: O20050309000770

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 P Dillon 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 P Dillon, MD
1635 Divisadero St, Ste 625, Box 1821,
San Francisco, CA 94143-0001

Ph: () -		Dr William P Dillon, MD
505 Parnassus Ave,
San Francisco, CA 94143-2204

Ph: (415) 353-1668

Reviews and Comments


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Roxanna Juarez,
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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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