Dr Gerald Frank Katz, MD - Medicare Obstetrics/gynecology in Walnut Creek, CA

Dr Gerald Frank Katz, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Walnut Creek, California. He graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Bass Medical Group and his current practice location is 112 La Casa Via Ste 200, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 933-4747.

Dr Gerald Frank Katz is licensed to practice in California (license number G75401) 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 1306868450.

Contact Information

Dr Gerald Frank Katz, MD
112 La Casa Via Ste 200,
Walnut Creek, CA 94598-3011
(925) 933-4747
(925) 933-1638

Map and Direction




Physician's Profile

Full NameDr Gerald Frank Katz
GenderMale
SpecialityObstetrics/gynecology
Experience35 Years
Location112 La Casa Via Ste 200, Walnut Creek, 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 Gerald Frank Katz graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1306868450
  • Provider Enumeration Date: 07/24/2006
  • Last Update Date: 05/17/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9032288535
  • Enrollment ID: I20090223000137

Medical Identifiers

Medical identifiers for Dr Gerald Frank Katz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306868450NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology G75401 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital
John Muir Medical Center - Concord CampusConcord, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Bass Medical Group9032111281303

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 Gerald Frank Katz allows following entities to bill medicare on his behalf.
Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181

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 Gerald Frank Katz 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 Gerald Frank Katz, MD
112 La Casa Via Ste 200,
Walnut Creek, CA 94598-3011

Ph: (925) 933-4747
Dr Gerald Frank Katz, MD
112 La Casa Via Ste 200,
Walnut Creek, CA 94598-3011

Ph: (925) 933-4747

Reviews and Comments


Obstetrics & Gynecology Doctors in Walnut Creek, CA

Dr. Johanne M Poulin, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 60 Amigo Rd, Walnut Creek, CA 94596
Phone: 781-331-1999    Fax: 781-331-1999
Francis Wright, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    
Dr. Nadine Barbara Hanna, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 112 La Casa Via Ste 200, Walnut Creek, CA 94598
Phone: 925-933-4747    Fax: 925-933-1638
Mark Allen Patterson, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 2657 Saklan Indian Dr Apt 2, Walnut Creek, CA 94595
Phone: 925-954-8960    
Dr. Madhavi Durga Vemulapalli, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 112 La Casa Via Ste 300, Walnut Creek, CA 94598
Phone: 925-239-0012    Fax: 925-239-0011
Dr. Lillian Darlene Lanka, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 634 Shadowhawk Way, Walnut Creek, CA 94595
Phone: 925-287-1750    Fax: 925-287-1760
Megan Jarvis Lavin, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 320 Lennon Ln, Park Shadelands, Walnut Creek, CA 94598
Phone: 925-469-2239    

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.