Ali Yassen, MD - Medicare Internal Medicine in Santa Rosa, CA

Ali Yassen, MD is a medicare enrolled "Internal Medicine - Interventional Cardiology" physician in Santa Rosa, California. His current practice location is 3536 Mendocino Ave Ste 200, Santa Rosa, California. You can reach out to his office (for appointments etc.) via phone at (707) 573-6166.

Ali Yassen is licensed to practice in California (license number A154552) 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 1528359296.

Contact Information

Ali Yassen, MD
3536 Mendocino Ave Ste 200,
Santa Rosa, CA 95403
(707) 573-6166
(707) 573-6165

Map and Direction




Physician's Profile

Full NameAli Yassen
GenderMale
SpecialityInternal Medicine - Interventional Cardiology
Location3536 Mendocino Ave Ste 200, Santa Rosa, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1528359296
  • Provider Enumeration Date: 04/28/2011
  • Last Update Date: 08/25/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4284875923
  • Enrollment ID: I20231014000237

Medical Identifiers

Medical identifiers for Ali Yassen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528359296NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease A154552 (California)Secondary
207RI0011XInternal Medicine - Interventional Cardiology A154552 (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. Ali Yassen allows following entities to bill medicare on his behalf.
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States,inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952461816
PECOS PAC ID: 3779495858
Enrollment ID: O20040105000308

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. Ali Yassen 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
Ali Yassen, MD
3536 Mendocino Ave Ste 200,
Santa Rosa, CA 95403-3634

Ph: (707) 525-6485
Ali Yassen, MD
3536 Mendocino Ave Ste 200,
Santa Rosa, CA 95403

Ph: (707) 573-6166

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).

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