Dr Gregory J Withers, MD - Medicare Neurosurgery in Arcadia, CA

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Dr Gregory J Withers, MD is a medicare enrolled "Neurological Surgery" physician in Arcadia, California. He went to University Of California, Geffen School Of Medicine and graduated in 1973 and has 52 years of diverse experience with area of expertise as Neurosurgery. He is a member of the group practice Usc Care Medical Group Inc and his current practice location is 301 W Huntington Drive, Suite 407, Arcadia, California. You can reach out to his office (for appointments etc.) via phone at (626) 821-3440.

Dr Gregory J Withers is licensed to practice in California (license number G27800) 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 1700804382.

Contact Information

Dr Gregory J Withers, MD
301 W Huntington Drive, Suite 407,
Arcadia, CA 91007-1504
(626) 821-3440
(626) 821-0709

Map and Direction




Physician's Profile

Full NameDr Gregory J Withers
GenderMale
SpecialityNeurosurgery
Experience52 Years
Location301 W Huntington Drive, Arcadia, 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 J Withers attended and graduated from University Of California, Geffen School Of Medicine in 1973
  NPI Data:
  • NPI Number: 1700804382
  • Provider Enumeration Date: 07/18/2006
  • Last Update Date: 04/16/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 1951598903
  • Enrollment ID: I20101203000249

Medical Identifiers

Medical identifiers for Dr Gregory J Withers such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700804382NPI-NPPES
00G278000MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207T00000XNeurological Surgery G27800 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Methodist Hospital Of Southern CaArcadia, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Usc Care Medical Group Inc04461577471215

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 J Withers allows following entities to bill medicare on his behalf.
Entity NameUsc Care Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902846306
PECOS PAC ID: 0446157747
Enrollment ID: O20050512000412
Entity NameGregory J Withers Md Inc A Medical Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619020484
PECOS PAC ID: 5698962637
Enrollment ID: O20101203000215

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 J Withers 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 J Withers, MD
301 W Huntington Dr, Suite 407,
Arcadia, CA 91007-1504

Ph: (626) 821-3440		Dr Gregory J Withers, MD
301 W Huntington Drive, Suite 407,
Arcadia, CA 91007-1504

Ph: (626) 821-3440

Reviews and Comments


Neurological Surgery Doctors in Arcadia, CA

Mr. Behnam B Badie, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 301 W Huntington Dr Ste 400, Arcadia, CA 91007
Phone: 626-574-3657    
Dr. Mike Y Chen, M.D.
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 301 W Huntington Dr Ste 400, Arcadia, CA 91007
Phone: 626-574-3657    

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.