Dr Mary Elizabeth Revilla Clark, MD - Medicare Gastroenterology in San Francisco, CA

Dr Mary Elizabeth Revilla Clark, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in San Francisco, California. She graduated from medical school in 2001 and has 23 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Permanente Medical Group Inc and her current practice location is 2333 Buchanan St, Suite 5823, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 644-5752.

Dr Mary Elizabeth Revilla Clark is licensed to practice in California (license number A98304) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1225109770.

Contact Information

Dr Mary Elizabeth Revilla Clark, MD
2333 Buchanan St, Suite 5823,
San Francisco, CA 94115-1925
(415) 644-5752
Not Available

Map and Direction




Physician's Profile

Full NameDr Mary Elizabeth Revilla Clark
GenderFemale
SpecialityGastroenterology
Experience23 Years
Location2333 Buchanan St, San Francisco, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Mary Elizabeth Revilla Clark graduated from medical school in 2001
  NPI Data:
  • NPI Number: 1225109770
  • Provider Enumeration Date: 11/13/2006
  • Last Update Date: 01/13/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7517996358
  • Enrollment ID: I20101029000328

Medical Identifiers

Medical identifiers for Dr Mary Elizabeth Revilla Clark such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225109770NPI-NPPES
A98304OtherCACALIFORNIA STATE LICENSE
MD-12890OtherHIHAWAII MEDICAL LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A98304 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital - AntiochAntioch, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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 Mary Elizabeth Revilla Clark allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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 Mary Elizabeth Revilla Clark 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 Mary Elizabeth Revilla Clark, MD
2333 Buchanan St, Suite 5823,
San Francisco, CA 94115-1925

Ph: (415) 644-5752
Dr Mary Elizabeth Revilla Clark, MD
2333 Buchanan St, Suite 5823,
San Francisco, CA 94115-1925

Ph: (415) 644-5752

Reviews and Comments


Internal Medicine Doctors in San Francisco, CA

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Dr. Adriana A.t. Martin, M.D., PH.D.
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Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-514-7288    

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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