Dr Sean Grammy, DO - Medicare in Antioch, CA

Dr Sean Grammy, DO is a medicare enrolled "Emergency Medicine" physician in Antioch, California. His current practice location is 3901 Lone Tree Way, Antioch, California. You can reach out to his office (for appointments etc.) via phone at (925) 779-7200.

Dr Sean Grammy is licensed to practice in California (license number 20A13122) 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 1982832127.

Contact Information

Dr Sean Grammy, DO
3901 Lone Tree Way,
Antioch, CA 94509-6200
(925) 779-7200
Not Available

Map and Direction




Physician's Profile

Full NameDr Sean Grammy
GenderMale
Speciality
Experience Years
Location3901 Lone Tree Way, Antioch, 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 Sean Grammy attended and graduated from in
  NPI Data:
  • NPI Number: 1982832127
  • Provider Enumeration Date: 06/25/2009
  • Last Update Date: 07/28/2014
  Medicare PECOS Information:
  • PECOS PAC ID:
  • Enrollment ID:

Medical Identifiers

Medical identifiers for Dr Sean Grammy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982832127NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 20A13122 (California)Primary
207R00000XInternal Medicine 20A13122 (California)Secondary

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 Sean Grammy 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 Sean Grammy, DO
1000 Harness Dr, 59,
San Ramon, CA 94583-2252

Ph: () -
Dr Sean Grammy, DO
3901 Lone Tree Way,
Antioch, CA 94509-6200

Ph: (925) 779-7200

Reviews and Comments


Emergency Medicine Doctors in Antioch, CA

Kathleen A Regacho, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-3522    
Khanh D Nguyen, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 510-350-2657    
Mary Antionette Fitzsimons, M.D
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-7273    
Raj V. Dasari, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3400 Delta Fair Blvd, Antioch, CA 94509
Phone: 925-779-5000    
Ivan S. Cavaliere, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3400 Delta Fair Blvd, Antioch, CA 94509
Phone: 925-779-5000    
Russell Gerald Rodriguez, M.D
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-7273    
Susan Woodmansee, M.D
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3901 Lone Tree Way, Antioch, CA 94509
Phone: 925-779-7273    

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.