Aras Nikodemas Mattis, MD, PHD - Medicare Pathology in San Francisco, CA

Aras Nikodemas Mattis, MD, PHD is a medicare enrolled "Pathology - Anatomic Pathology" physician in San Francisco, California. He graduated from medical school in 2007 and has 17 years of diverse experience with area of expertise as Pathology. He is a member of the group practice University Of California San Francisco and his current practice location is 505 Parnassus Ave, M585, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-8987.

Aras Nikodemas Mattis is licensed to practice in California (license number A108366) 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 1326374869.

Contact Information

Aras Nikodemas Mattis, MD, PHD
505 Parnassus Ave, M585,
San Francisco, CA 94143-2204
(415) 353-8987
(415) 353-8987

Map and Direction




Physician's Profile

Full NameAras Nikodemas Mattis
GenderMale
SpecialityPathology
Experience17 Years
Location505 Parnassus Ave, 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:
  • Aras Nikodemas Mattis graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1326374869
  • Provider Enumeration Date: 10/18/2009
  • Last Update Date: 10/18/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 9032351069
  • Enrollment ID: I20130805000180

Medical Identifiers

Medical identifiers for Aras Nikodemas Mattis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326374869NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0101XPathology - Anatomic Pathology A108366 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of California San Francisco44865672291306

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. Aras Nikodemas Mattis 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: 1366417420
PECOS PAC ID: 5496668410
Enrollment ID: O20031112000551
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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. Aras Nikodemas Mattis 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
Aras Nikodemas Mattis, MD, PHD
505 Parnassus Ave, M585,
San Francisco, CA 94143-2204

Ph: (415) 353-8987
Aras Nikodemas Mattis, MD, PHD
505 Parnassus Ave, M585,
San Francisco, CA 94143-2204

Ph: (415) 353-8987

Reviews and Comments


Pathology Doctors in San Francisco, CA

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Karthik A Ganapathi, MD, PHD
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Dr. Scott R. Vandenberg, MD
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Phone: 415-502-7796    Fax: 415-476-1963
Ronald Balassanian, MD
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Practice Location: 1600 Divisadero St, Ucsf/mt. Zion Medical Center, Room 200 Fna Clinic, San Francisco, CA 94115
Phone: 415-514-6642    Fax: 415-353-7676

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.