Dr Shannon Walker, - Medicare Internal Medicine in San Francisco, CA

Dr Shannon Walker, is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in San Francisco, California. Her current practice location is 112 Parnassus Ave Apt 4, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (571) 271-8343.

Dr Shannon Walker is licensed to practice in Georgia (license number 99891) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1003155151.

Contact Information

Dr Shannon Walker,
112 Parnassus Ave Apt 4,
San Francisco, CA 94117-4246
(571) 271-8343
Not Available

Map and Direction




Physician's Profile

Full NameDr Shannon Walker
GenderFemale
SpecialityInternal Medicine - Cardiovascular Disease
Location112 Parnassus Ave Apt 4, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1003155151
  • Provider Enumeration Date: 02/09/2013
  • Last Update Date: 06/05/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8527388313
  • Enrollment ID: I20180921001188

Medical Identifiers

Medical identifiers for Dr Shannon Walker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003155151NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease A171821 (California)Secondary
208M00000XHospitalist R8509 (Texas)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 99891 (Georgia)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. Dr Shannon Walker allows following entities to bill medicare on her behalf.
Entity NameUniversity Of Texas Southwestern Medical Center At Dallas
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972579365
PECOS PAC ID: 0648188250
Enrollment ID: O20031106000792
Entity NameRosebud Indian Health Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194757369
PECOS PAC ID: 6901704055
Enrollment ID: O20031226000337

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 Shannon Walker 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 Shannon Walker,
1505 Cottage Shell Dr,
Myrtle Beach, SC 29579-3820

Ph: (571) 271-8343
Dr Shannon Walker,
112 Parnassus Ave Apt 4,
San Francisco, CA 94117-4246

Ph: (571) 271-8343

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.

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