Sean Robert Townsend, MD - Medicare Critical Care (intensivists) in San Francisco, CA

Sean Robert Townsend, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in San Francisco, California. He went to University Of Chicago, Pritzker School Of Medicine and graduated in 1999 and has 25 years of diverse experience with area of expertise as Critical Care (intensivists). He is a member of the group practice San Francisco Critical Care Med Group Inc and his current practice location is 1101 Van Ness Ave, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (617) 921-3237.

Sean Robert Townsend is licensed to practice in California (license number A111480) 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 1528058617.

Contact Information

Sean Robert Townsend, MD
1101 Van Ness Ave,
San Francisco, CA 94109-6919
(617) 921-3237
(415) 865-4180

Map and Direction




Physician's Profile

Full NameSean Robert Townsend
GenderMale
SpecialityCritical Care (intensivists)
Experience25 Years
Location1101 Van Ness Ave, San Francisco, 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:
  • Sean Robert Townsend attended and graduated from University Of Chicago, Pritzker School Of Medicine in 1999
  NPI Data:
  • NPI Number: 1528058617
  • Provider Enumeration Date: 10/28/2005
  • Last Update Date: 08/17/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4183607955
  • Enrollment ID: I20100601000651

Medical Identifiers

Medical identifiers for Sean Robert Townsend such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528058617NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine A111480 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
California Pacific Medical Center- Van Ness CampusSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
San Francisco Critical Care Med Group Inc185028560215

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. Sean Robert Townsend allows following entities to bill medicare on his behalf.
Entity NameSan Francisco Critical Care Med Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215000211
PECOS PAC ID: 1850285602
Enrollment ID: O20040211001214
Entity NameSonoma Critical Care Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992408819
PECOS PAC ID: 2264897693
Enrollment ID: O20230508001380

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. Sean Robert Townsend 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
Sean Robert Townsend, MD
36 Helens Ln,
Mill Valley, CA 94941-2723

Ph: (617) 921-3237
Sean Robert Townsend, MD
1101 Van Ness Ave,
San Francisco, CA 94109-6919

Ph: (617) 921-3237

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.