Dr Elizabeth O, Ross, MD - Medicare Internal Medicine in San Francisco, CA

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Dr Elizabeth O, Ross, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in San Francisco, California. Her current practice location is 2350 Geary Blvd, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 833-2000.

Dr Elizabeth O, Ross is licensed to practice in California (license number A119731) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1437358967.

Contact Information

Dr Elizabeth O, Ross, MD
2350 Geary Blvd,
San Francisco, CA 94115-3305
(415) 833-2000
Not Available

Map and Direction




Physician's Profile

Full NameDr Elizabeth O, Ross
GenderFemale
SpecialityInternal Medicine - Gastroenterology
Location2350 Geary Blvd, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1437358967
  • Provider Enumeration Date: 07/14/2007
  • Last Update Date: 05/13/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 1658542220
  • Enrollment ID: I20120724000807

Medical Identifiers

Medical identifiers for Dr Elizabeth O, Ross such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437358967NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A119731 (California)Primary
207RG0100XInternal Medicine - Gastroenterology 16185 (Hawaii)Secondary

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 Elizabeth O, Ross 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 Elizabeth O, Ross 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 Elizabeth O, Ross, MD
144 E 7th St, Apt A15,
New York, NY 10009-6203

Ph: (917) 309-1470		Dr Elizabeth O, Ross, MD
2350 Geary Blvd,
San Francisco, CA 94115-3305

Ph: (415) 833-2000

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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