Dr Gregory Katz, MD - Medicare Internal Medicine in Newport Beach, CA

Dr Gregory Katz, MD is a medicare enrolled "Internal Medicine" physician in Newport Beach, California. He went to Albert Einstein College Of Medicine Of Yeshiva University and graduated in 1991 and has 33 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Newport Medicine Group Inc and his current practice location is 520 Superior Ave, Ste 220, Newport Beach, California. You can reach out to his office (for appointments etc.) via phone at (949) 642-2333.

Dr Gregory Katz is licensed to practice in California (license number G76136) 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 1184674178.

Contact Information

Dr Gregory Katz, MD
520 Superior Ave, Ste 220,
Newport Beach, CA 92663-3637
(949) 642-2333
(949) 548-9456

Map and Direction




Physician's Profile

Full NameDr Gregory Katz
GenderMale
SpecialityInternal Medicine
Experience33 Years
Location520 Superior Ave, Newport Beach, 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 Gregory Katz attended and graduated from Albert Einstein College Of Medicine Of Yeshiva University in 1991
  NPI Data:
  • NPI Number: 1184674178
  • Provider Enumeration Date: 05/11/2006
  • Last Update Date: 05/26/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 9436242294
  • Enrollment ID: I20070910000853

Medical Identifiers

Medical identifiers for Dr Gregory Katz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184674178NPI-NPPES
P00609097OtherCAMEDICARE RAILROAD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G76136 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Companion Home HealthOrange, CAHome health agency
Hoag Memorial Hospital PresbyterianNewport beach, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Newport Medicine Group Inc24665452232

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 Gregory Katz allows following entities to bill medicare on his behalf.
Entity NameNewport Medicine Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558581207
PECOS PAC ID: 2466545223
Enrollment ID: O20070910000804

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 Gregory Katz 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 Gregory Katz, MD
Po Box 15745,
Newport Beach, CA 92659

Ph: (657) 241-3600
Dr Gregory Katz, MD
520 Superior Ave, Ste 220,
Newport Beach, CA 92663-3637

Ph: (949) 642-2333

Reviews and Comments


Internal Medicine Doctors in Newport Beach, CA

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Dr. Leslie Kennerly Meserve, M.D.
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Phone: 949-558-0501    Fax: 949-558-0502
Bhavini Jashvant Jaiswal, M.D
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Phone: 480-227-1318    

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.