Jeffrey David Klausner, MD - Medicare Internal Medicine in San Leandro, CA

Jeffrey David Klausner, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in San Leandro, California. His current practice location is 201 Dolores Ave, San Leandro, California. You can reach out to his office (for appointments etc.) via phone at (510) 984-2489.

Jeffrey David Klausner is licensed to practice in California (license number G81840) 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 1508973249.

Contact Information

Jeffrey David Klausner, MD
201 Dolores Ave,
San Leandro, CA 94577-5007
(510) 984-2489
(510) 788-6830

Map and Direction




Physician's Profile

Full NameJeffrey David Klausner
GenderMale
SpecialityInternal Medicine - Infectious Disease
Location201 Dolores Ave, San Leandro, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1508973249
  • Provider Enumeration Date: 08/25/2006
  • Last Update Date: 12/16/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8123216850
  • Enrollment ID: I20101222000696

Medical Identifiers

Medical identifiers for Jeffrey David Klausner such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1508973249NPI-NPPES
1508973249OtherCACCS PANELED
00G818400MedicaidCA
1508973249MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G81840 (California)Secondary
207RI0200XInternal Medicine - Infectious Disease G81840 (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. Jeffrey David Klausner 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: 1366417933
PECOS PAC ID: 5496668410
Enrollment ID: O20050401000123
Entity NameCity Health A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477940187
PECOS PAC ID: 5890003024
Enrollment ID: O20151007002146

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. Jeffrey David Klausner 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
Jeffrey David Klausner, MD
201 Dolores Ave,
San Leandro, CA 94577-5007

Ph: (510) 984-2489
Jeffrey David Klausner, MD
201 Dolores Ave,
San Leandro, CA 94577-5007

Ph: (510) 984-2489

Reviews and Comments


Internal Medicine Doctors in San Leandro, CA

Dr. Evelyn Junko Nakagawa, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2800 Benedict Dr, San Leandro, CA 94577
Phone: 415-233-3604    Fax: 415-295-5109
Jeffrey Silvers, M.D.
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 13847 E 14th St, Suite 116, San Leandro, CA 94578
Phone: 510-895-0388    Fax: 510-895-0342
Dr. Asaf Shor, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2500 Merced St, San Leandro, CA 94577
Phone: 510-454-1000    
Dr. Arlen Randall Hoh, MD, MPH
Infectious Disease
Medicare: Not Enrolled in Medicare
Practice Location: 15400 Foothill Blvd, San Leandro, CA 94578
Phone: 510-895-4288    Fax: 510-895-4285
Masood Younus,
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2500 Merced St Bldg A1, San Leandro, CA 94577
Phone: 510-454-2434    
Dr. Shraddha Prakash, M.D.
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 2500 Merced St, Kaiser Permanente, San Leandro, CA 94577
Phone: 510-454-5750    
Deepa Vincent, MD
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 1532 150th Ave, San Leandro, CA 94578
Phone: 510-351-6363    

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.