Warren Gee, MD - Medicare Anesthesiology in Castro Valley, CA

Warren Gee, MD is a medicare enrolled "Anesthesiology" physician in Castro Valley, California. He went to Medical College Of Wisconsin and graduated in 2002 and has 22 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Alameda Anesthesia Associates Medical Group, Inc and his current practice location is 20103 Lake Chabot Rd, Castro Valley, California. You can reach out to his office (for appointments etc.) via phone at (510) 537-1234.

Warren Gee is licensed to practice in California (license number A97099) 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 1528143575.

Contact Information

Warren Gee, MD
20103 Lake Chabot Rd,
Castro Valley, CA 94546-5305
(510) 537-1234
Not Available

Map and Direction




Physician's Profile

Full NameWarren Gee
GenderMale
SpecialityAnesthesiology
Experience22 Years
Location20103 Lake Chabot Rd, Castro Valley, 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:
  • Warren Gee attended and graduated from Medical College Of Wisconsin in 2002
  NPI Data:
  • NPI Number: 1528143575
  • Provider Enumeration Date: 10/26/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8325146087
  • Enrollment ID: I20070605000182

Medical Identifiers

Medical identifiers for Warren Gee such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528143575NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology A97099 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Eden Medical CenterCastro valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Alameda Anesthesia Associates Medical Group, Inc468864202817

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. Warren Gee allows following entities to bill medicare on his behalf.
Entity NameAlameda Anesthesia Associates Medical Group, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487602256
PECOS PAC ID: 4688642028
Enrollment ID: O20040922001142

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. Warren Gee 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
Warren Gee, MD
Po Box 7793,
San Francisco, CA 94120-7793

Ph: () -
Warren Gee, MD
20103 Lake Chabot Rd,
Castro Valley, CA 94546-5305

Ph: (510) 537-1234

Reviews and Comments


Anesthesiology Doctors in Castro Valley, CA

Phuong Dai Vo, MD
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-537-1234    
Marina Swee, DO
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 20998 Redwood Rd, Castro Valley, CA 94546
Phone: 510-538-2828    
Yolanda Q Tam, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-537-1234    
Dr. Charles Ernest Lopez, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 20998 Redwood Rd, Castro Valley, CA 94546
Phone: 510-538-2828    Fax: 510-538-2508
Dr. Penna Kim Bui, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-870-2497    Fax: 562-933-1245
Dr. Jeffrey Do, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 20998 Redwood Rd, Castro Valley, CA 94546
Phone: 510-538-2828    
Qiliang Zhang, D.O.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 20103 Lake Chabot Rd, Castro Valley, CA 94546
Phone: 510-537-1234    

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.