Mary Omalley Gray, MD - Medicare Cardiovascular Disease (cardiology) in San Francisco, CA

Mary Omalley Gray, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in San Francisco, California. She went to University Of California, San Diego School Of Medicine and graduated in 1987 and has 37 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). She is a member of the group practice University Of California Sfgh Medical Group and her current practice location is 1001 Potrero Avenue, Rm 5g1, San Francisco, California. You can reach out to her office (for appointments etc.) via phone at (415) 206-3503.

Mary Omalley Gray is licensed to practice in California (license number G64546) 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 1124062013.

Contact Information

Mary Omalley Gray, MD
1001 Potrero Avenue, Rm 5g1,
San Francisco, CA 94110-3518
(415) 206-3503
(415) 206-5100

Map and Direction




Physician's Profile

Full NameMary Omalley Gray
GenderFemale
SpecialityCardiovascular Disease (cardiology)
Experience37 Years
Location1001 Potrero Avenue, 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:
  • Mary Omalley Gray attended and graduated from University Of California, San Diego School Of Medicine in 1987
  NPI Data:
  • NPI Number: 1124062013
  • Provider Enumeration Date: 06/15/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4284706540
  • Enrollment ID: I20080701000341

Medical Identifiers

Medical identifiers for Mary Omalley Gray such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124062013NPI-NPPES
00G645460MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G64546 (California)Primary
207RC0000XInternal Medicine - Cardiovascular Disease G64546 (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 Group5496668410478

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. Mary Omalley Gray allows following entities to bill medicare on her 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
Entity NameUniversity Of California Sfgh Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386619344
PECOS PAC ID: 5496668410
Enrollment ID: O20050401000140

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. Mary Omalley Gray 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
Mary Omalley Gray, MD
Po Box 7464,
San Francisco, CA 94120-7464

Ph: (415) 206-3103
Mary Omalley Gray, MD
1001 Potrero Avenue, Rm 5g1,
San Francisco, CA 94110-3518

Ph: (415) 206-3503

Reviews and Comments


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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
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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.

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