Dr Gabriel Martin Ortiz, MD, PHD - Medicare Internal Medicine in San Francisco, CA

Dr Gabriel Martin Ortiz, MD, PHD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in San Francisco, California. He went to Js Weill Medical College, Cornell University and graduated in 2004 and has 20 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice University Of California Sfgh Medical Group and his current practice location is 1001 Potrero Ave Rm 5h16, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 206-8322.

Dr Gabriel Martin Ortiz is licensed to practice in California (license number A95266) 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 1831391879.

Contact Information

Dr Gabriel Martin Ortiz, MD, PHD
1001 Potrero Ave Rm 5h16,
San Francisco, CA 94110-3518
(415) 206-8322
(415) 206-8965

Map and Direction




Physician's Profile

Full NameDr Gabriel Martin Ortiz
GenderMale
SpecialityInternal Medicine
Experience20 Years
Location1001 Potrero Ave Rm 5h16, 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:
  • Dr Gabriel Martin Ortiz attended and graduated from Js Weill Medical College, Cornell University in 2004
  NPI Data:
  • NPI Number: 1831391879
  • Provider Enumeration Date: 06/01/2007
  • Last Update Date: 04/20/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 4284720368
  • Enrollment ID: I20071020000117

Medical Identifiers

Medical identifiers for Dr Gabriel Martin Ortiz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831391879NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease A95266 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Zuckerberg San Francisco General Hosp & Trauma CtrSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of California Sfgh Medical Group5496668410488

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 Gabriel Martin Ortiz allows following entities to bill medicare on his behalf.
Entity NameUniversity Of California Sfgh Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154396208
PECOS PAC ID: 5496668410
Enrollment ID: O20031113000632
Entity NameCity & County Of San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982737524
PECOS PAC ID: 1658280748
Enrollment ID: O20050309000770

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 Gabriel Martin Ortiz 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 Gabriel Martin Ortiz, MD, PHD
1001 Potrero Ave, Building 3, Room 631,
San Francisco, CA 94110-3518

Ph: (415) 206-8091
Dr Gabriel Martin Ortiz, MD, PHD
1001 Potrero Ave Rm 5h16,
San Francisco, CA 94110-3518

Ph: (415) 206-8322

Reviews and Comments


Internal Medicine Doctors in San Francisco, CA

Dr. Pratyusha Kishore Narra, MBBS
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Phone: 415-514-6200    Fax: 415-514-6410
Dr. Chelsea Joy Thomsen, M.D., M.S.P.H
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Medicare: Accepting Medicare Assignments
Practice Location: 2 W Portal Ave, San Francisco, CA 94127
Phone: 415-291-0480    
Christine Soran,
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Medicare: Medicare Enrolled
Practice Location: 1001 Potrero Ave, Bldg 10, 3rd Floor, Ward 13, Ucsf Division Of General Internal Medicine Sfgh, San Francisco, CA 94110
Phone: 415-206-5164    Fax: 415-206-5586
Stephen Norris Cohen, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 40 Ventura Ave, San Francisco, CA 94116
Phone: 415-681-2171    Fax: 415-681-2171
Mauricio Jalife Bucay, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-750-4994    Fax: 415-750-8156
Dr. Adriana A.t. Martin, M.D., PH.D.
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 505 Parnassus Ave, San Francisco, CA 94143
Phone: 415-514-7288    
Dr. Alexandra Cristina Villasante Fricke, MD
Infectious Disease
Medicare: Medicare Enrolled
Practice Location: 655 Montgomery St Ste 810, San Francisco, CA 94111
Phone: 844-847-8216    Fax: 415-520-9150

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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