William Mckleroy, MD - Medicare Internal Medicine in San Francisco, CA

William Mckleroy, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in San Francisco, California. His current practice location is 513 Parnassus Ave, Hse1314, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 476-0735.

William Mckleroy is licensed to practice in California (license number A155424) 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 1013302215.

Contact Information

William Mckleroy, MD
513 Parnassus Ave, Hse1314,
San Francisco, CA 94143-2205
(415) 476-0735
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Mckleroy
GenderMale
SpecialityInternal Medicine - Pulmonary Disease
Location513 Parnassus Ave, 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: 1013302215
  • Provider Enumeration Date: 04/03/2015
  • Last Update Date: 12/22/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7719293166
  • Enrollment ID: I20210708001718

Medical Identifiers

Medical identifiers for William Mckleroy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013302215NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease A155424 (California)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))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. William Mckleroy allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameRegents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881763597
PECOS PAC ID: 4284547274
Enrollment ID: O20031106000389
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

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 Mckleroy 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 Mckleroy, MD
505 Parnassus Ave,
San Francisco, CA 94143-2204

Ph: (415) 476-0735
William Mckleroy, MD
513 Parnassus Ave, Hse1314,
San Francisco, CA 94143-2205

Ph: (415) 476-0735

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).

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