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

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Dr Gregory A Robertson, MD is a medicare enrolled "Internal Medicine" physician in Newport Beach, California. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1982 and has 44 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 20311 Sw Acacia St, Ste 100, Newport Beach, California. You can reach out to his office (for appointments etc.) via phone at (949) 250-4244.

Dr Gregory A Robertson is licensed to practice in California (license number G50555) 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 1932281011.

Contact Information

Dr Gregory A Robertson, MD
20311 Sw Acacia St, Ste 100,
Newport Beach, CA 92660-1733
(949) 250-4244
Not Available

Map and Direction




Physician's Profile

Full NameDr Gregory A Robertson
GenderMale
SpecialityInternal Medicine
Experience44 Years
Location20311 Sw Acacia St, 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 A Robertson attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1982
  NPI Data:
  • NPI Number: 1932281011
  • Provider Enumeration Date: 10/19/2006
  • Last Update Date: 08/04/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 2961571245
  • Enrollment ID: I20120323000136

Medical Identifiers

Medical identifiers for Dr Gregory A Robertson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1932281011NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G50555 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Elegance Healthcare, IncTarzana, CAHome health agency
Hoag Home HealthNewport beach, CAHome health agency
Hoag Memorial Hospital PresbyterianNewport beach, CAHospital

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 A Robertson allows following entities to bill medicare on his behalf.
Entity NameGregory a Robertson M D a Professional Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417197443
PECOS PAC ID: 1759673726
Enrollment ID: O20160712001596
Entity NameGR Medical PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1649086331
PECOS PAC ID: 8325530892
Enrollment ID: O20251121003101

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 A Robertson 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 A Robertson, MD
20311 Sw Acacia St, Ste 100,
Newport Beach, CA 92660-1733

Ph: (949) 250-4244		Dr Gregory A Robertson, MD
20311 Sw Acacia St, Ste 100,
Newport Beach, CA 92660-1733

Ph: (949) 250-4244

Reviews and Comments


Internal Medicine Doctors in Newport Beach, CA

Dr. Michael Gray, MD
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Dr. Andy Yen-tang Lee, MD
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John Zheng Nan, M.D
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Brian Kong, M.D.
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Dr. Cesar Balbin Guerrero, M.D.
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Connie Oh, MD
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Phone: 949-722-7038    

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.