Dr Swaminadhan Gnanashanmugam, MD - Medicare Thoracic Surgery in Saint Helena, CA

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Dr Swaminadhan Gnanashanmugam, MD is a medicare enrolled "Thoracic Surgery (cardiothoracic Vascular Surgery)" physician in Saint Helena, California. He went to Northwestern University Feinberg Medical School and graduated in 2008 and has 17 years of diverse experience with area of expertise as Thoracic Surgery. He is a member of the group practice Adventist Health Physicians Network, Providence Medical Foundation and his current practice location is 10 Woodland Rd, Saint Helena, California. You can reach out to his office (for appointments etc.) via phone at (650) 804-8093.

Dr Swaminadhan Gnanashanmugam is licensed to practice in California (license number A171765) 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 1073765517.

Contact Information

Dr Swaminadhan Gnanashanmugam, MD
10 Woodland Rd,
Saint Helena, CA 94574-9554
(650) 804-8093
Not Available

Map and Direction




Physician's Profile

Full NameDr Swaminadhan Gnanashanmugam
GenderMale
SpecialityThoracic Surgery
Experience17 Years
Location10 Woodland Rd, Saint Helena, 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 Swaminadhan Gnanashanmugam attended and graduated from Northwestern University Feinberg Medical School in 2008
  NPI Data:
  • NPI Number: 1073765517
  • Provider Enumeration Date: 10/15/2008
  • Last Update Date: 11/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2668805912
  • Enrollment ID: I20230801003299

Medical Identifiers

Medical identifiers for Dr Swaminadhan Gnanashanmugam such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073765517NPI-NPPES
128981100MedicaidFL
WF482OtherFLHFMG

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208G00000XThoracic Surgery (cardiothoracic Vascular Surgery) 036157660 (Illinois)Secondary
208G00000XThoracic Surgery (cardiothoracic Vascular Surgery) ME173914 (Florida)Secondary
208G00000XThoracic Surgery (cardiothoracic Vascular Surgery) A171765 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health St HelenaSaint helena, CAHospital
Santa Rosa Memorial HospitalSanta rosa, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Adventist Health Physicians Network3274580972572
Providence Medical Foundation89219932051329

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 Swaminadhan Gnanashanmugam allows following entities to bill medicare on his behalf.
Entity NameProvidence Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285890624
PECOS PAC ID: 8921993205
Enrollment ID: O20040216001346
Entity NameSt. Helena Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720078082
PECOS PAC ID: 8729059878
Enrollment ID: O20040803001176
Entity NameAdventist Health Physicians Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063718583
PECOS PAC ID: 3274580972
Enrollment ID: O20050407000633
Entity NameMemorialcare Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205167350
PECOS PAC ID: 8729277314
Enrollment ID: O20110113000219

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 Swaminadhan Gnanashanmugam 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 Swaminadhan Gnanashanmugam, MD
5082 Dupont Dr,
Santa Rosa, CA 95409-3743

Ph: (650) 804-8093		Dr Swaminadhan Gnanashanmugam, MD
10 Woodland Rd,
Saint Helena, CA 94574-9554

Ph: (650) 804-8093

Reviews and Comments


Thoracic Surgery (Cardiothoracic Vascular Surgery) Doctors in Saint Helena, CA

Armin Kiankhooy, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 6 Woodland Rd Ste 304, Saint Helena, CA 94574
Phone: 707-963-7200    Fax: 707-963-7203
Dr. Gansevoort Hurlbut Dunnington Jr., M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 10 Woodland Rd, Saint Helena, CA 94574
Phone: 707-963-6445    Fax: 707-967-5656
Dr. John Garth Jacobson, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Not Enrolled in Medicare
Practice Location: 6 Woodland Rd, Suite #101, Saint Helena, CA 94574
Phone: 707-963-6303    Fax: 707-963-1492
Dr. Aaron Maxwell Kime, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 6 Woodland Rd Ste 304, Saint Helena, CA 94574
Phone: 707-963-7200    Fax: 707-963-7203

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.