Gregory Martinez, MD - Medicare Nephrology in Fresno, CA

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Gregory Martinez, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Fresno, California. He went to Jefferson Medical College Of Thomas Jefferson University and graduated in 2006 and has 19 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice The Nephrology Group Inc, Central California Faculty Medical Group Inc and his current practice location is 568 E Herndon Ave, Suite 201, Fresno, California. You can reach out to his office (for appointments etc.) via phone at (559) 228-6600.

Gregory Martinez is licensed to practice in California (license number A103241) 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 1982863098.

Contact Information

Gregory Martinez, MD
568 E Herndon Ave, Suite 201,
Fresno, CA 93720-2989
(559) 228-6600
(559) 226-3709

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Physician's Profile

Full NameGregory Martinez
GenderMale
SpecialityNephrology
Experience19 Years
Location568 E Herndon Ave, Fresno, 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:
  • Gregory Martinez attended and graduated from Jefferson Medical College Of Thomas Jefferson University in 2006
  NPI Data:
  • NPI Number: 1982863098
  • Provider Enumeration Date: 06/04/2008
  • Last Update Date: 08/15/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 2264602564
  • Enrollment ID: I20110824000191

Medical Identifiers

Medical identifiers for Gregory Martinez such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1982863098NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology A103241 (California)Primary
207R00000XInternal Medicine A103241 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Community Dialysis CenterFresno, CADialysis facility
Kerman Dialysis Center, LlcKerman, CADialysis facility
Fresno North Home TrainingFresno, CADialysis facility
Almond-wood DialysisMadera, CADialysis facility
Fmc Fresno Airport EastFresno, CADialysis facility
Clovis Community Medical CenterClovis, CAHospital
Community Regional Medical CenterFresno, CAHospital
Saint Agnes Medical CenterFresno, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Nephrology Group Inc468876726243
Central California Faculty Medical Group Inc8325952773235

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. Gregory Martinez allows following entities to bill medicare on his behalf.
Entity NameCentral California Faculty Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457603573
PECOS PAC ID: 8325952773
Enrollment ID: O20031118001168
Entity NameThe Nephrology Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205906229
PECOS PAC ID: 4688767262
Enrollment ID: O20070912000803
Entity NameUniversity Faculty Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073911137
PECOS PAC ID: 6507181708
Enrollment ID: O20150211000164

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. Gregory Martinez 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
Gregory Martinez, MD
568 E Herndon Ave, Suite 201,
Fresno, CA 93720-2989

Ph: (559) 228-6600		Gregory Martinez, MD
568 E Herndon Ave, Suite 201,
Fresno, CA 93720-2989

Ph: (559) 228-6600

Reviews and Comments


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Dr. John R Nelson, MD
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Dexter T Estrada, M.D.
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Dr. Sherry Lopez, D.O.
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Practice Location: 3209 W Shaw Ave, Suite 114, Fresno, CA 93711
Phone: 559-224-4977    Fax: 559-224-4980

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.