Garmen A Woo, MD - Medicare Internal Medicine in Tracy, CA

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Garmen A Woo, MD is a medicare enrolled "General Practice" physician in Tracy, California. She graduated from medical school in 2007 and has 19 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Alameda Inpatient Medical Inc, Alameda Health System and her current practice location is 4600 S Tracy Blvd Ste 108, Tracy, California. You can reach out to her office (for appointments etc.) via phone at (510) 571-4596.

Garmen A Woo is licensed to practice in California (license number A110615) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1144551979.

Contact Information

Garmen A Woo, MD
4600 S Tracy Blvd Ste 108,
Tracy, CA 95377-8105
(510) 571-4596
Not Available

Map and Direction




Physician's Profile

Full NameGarmen A Woo
GenderFemale
SpecialityInternal Medicine
Experience19 Years
Location4600 S Tracy Blvd Ste 108, Tracy, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Garmen A Woo graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1144551979
  • Provider Enumeration Date: 01/19/2010
  • Last Update Date: 07/09/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6800928029
  • Enrollment ID: I20100722000815

Medical Identifiers

Medical identifiers for Garmen A Woo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144551979NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A110615 (California)Secondary
208D00000XGeneral Practice A110615 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Alameda HospitalAlameda, CAHospital
Highland HospitalOakland, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Alameda Inpatient Medical Inc549675757722
Alameda Health System3779494521598

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. Garmen A Woo allows following entities to bill medicare on her behalf.
Entity NameAlameda Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740332931
PECOS PAC ID: 3779494521
Enrollment ID: O20031110000764
Entity NameAlameda Inpatient Medical Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588673750
PECOS PAC ID: 5496757577
Enrollment ID: O20070201000534

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. Garmen A Woo 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
Garmen A Woo, MD
4600 S Tracy Blvd Ste 108,
Tracy, CA 95377-8105

Ph: (510) 517-4596		Garmen A Woo, MD
4600 S Tracy Blvd Ste 108,
Tracy, CA 95377-8105

Ph: (510) 571-4596

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).

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.