Dr William J Karlon, MD - Medicare Hematology in San Francisco, CA

Dr William J Karlon, MD is a medicare enrolled "Pathology - Anatomic Pathology & Clinical Pathology" physician in San Francisco, California. He went to University Of California, Irvine, California College Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Hematology. He is a member of the group practice University Of California San Francisco and his current practice location is 185 Berry St, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-4721.

Dr William J Karlon is licensed to practice in California (license number A87881) 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 1154365088.

Contact Information

Dr William J Karlon, MD
185 Berry St,
San Francisco, CA 94107-1773
(415) 353-4721
(415) 353-4828

Map and Direction




Physician's Profile

Full NameDr William J Karlon
GenderMale
SpecialityHematology
Experience22 Years
Location185 Berry St, 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 J Karlon attended and graduated from University Of California, Irvine, California College Of Medicine in 2002
  NPI Data:
  • NPI Number: 1154365088
  • Provider Enumeration Date: 06/14/2006
  • Last Update Date: 06/06/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 6709811052
  • Enrollment ID: I20051005000719

Medical Identifiers

Medical identifiers for Dr William J Karlon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154365088NPI-NPPES
00A878810MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology A87881 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ucsf Medical CenterSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
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 J Karlon allows following entities to bill medicare on his behalf.
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. Dr William J Karlon 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 J Karlon, MD
1635 Divisadero Street, Suite 625, Box 1821,
San Francisco, CA 94143-0001

Ph: () -
Dr William J Karlon, MD
185 Berry St,
San Francisco, CA 94107-1773

Ph: (415) 353-4721

Reviews and Comments


Pathology Doctors in San Francisco, CA

Dr. Elliott Scott Seeley, M.D., PH.D.
Pathology
Medicare: Not Enrolled in Medicare
Practice Location: 513 Parnassus Ave, Hsw4, Suite 450a, San Francisco, CA 94143
Phone: 415-514-0738    
Lucy Han,
Pathology
Medicare: Medicare Enrolled
Practice Location: 1101 Van Ness Ave, San Francisco, CA 94109
Phone: 415-600-2200    
Jason Yang, M.D., PH.D.
Pathology
Medicare: Medicare Enrolled
Practice Location: 601 Van Ness Ave Apt 1028, San Francisco, CA 94102
Phone: 415-345-8836    
John C. Moretto, MD
Pathology
Medicare: Accepting Medicare Assignments
Practice Location: 3700 California St, San Francisco, CA 94118
Phone: 415-600-2200    Fax: 415-750-5001
Karthik A Ganapathi, MD, PHD
Pathology
Medicare: Accepting Medicare Assignments
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-476-1000    
Dr. Scott R. Vandenberg, MD
Pathology
Medicare: Medicare Enrolled
Practice Location: 513 Parnassus Ave, San Francisco, CA 94143
Phone: 415-502-7796    Fax: 415-476-1963
Ronald Balassanian, MD
Pathology
Medicare: Accepting Medicare Assignments
Practice Location: 1600 Divisadero St, Ucsf/mt. Zion Medical Center, Room 200 Fna Clinic, San Francisco, CA 94115
Phone: 415-514-6642    Fax: 415-353-7676

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.