David James Gregory, DO - Medicare Orthopedic Surgery in Los Angeles, CA

David James Gregory, DO is a medicare enrolled "Orthopaedic Surgery" physician in Los Angeles, California. He graduated from medical school in 2017 and has 7 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Cedars-sinai Medical Center Pharmacy 3, Cedars-sinai Medical Care Foundation and his current practice location is 444 S San Vicente Blvd Ste 603, Los Angeles, California. You can reach out to his office (for appointments etc.) via phone at (310) 423-9718.

David James Gregory is licensed to practice in California (license number 20A19371) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1205377553.

Contact Information

David James Gregory, DO
444 S San Vicente Blvd Ste 603,
Los Angeles, CA 90048-4178
(310) 423-9718
(310) 423-9958

Map and Direction




Physician's Profile

Full NameDavid James Gregory
GenderMale
SpecialityOrthopedic Surgery
Experience7 Years
Location444 S San Vicente Blvd Ste 603, Los Angeles, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • David James Gregory graduated from medical school in 2017
  NPI Data:
  • NPI Number: 1205377553
  • Provider Enumeration Date: 03/19/2017
  • Last Update Date: 08/01/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0648540641
  • Enrollment ID: I20220509000936

Medical Identifiers

Medical identifiers for David James Gregory such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205377553NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery 5151009876 (Michigan)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207X00000XOrthopaedic Surgery 20A19371 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cedars-sinai Medical CenterLos angeles, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cedars-sinai Medical Center Pharmacy 30446169114648
Cedars-sinai Medical Care Foundation09411066451116

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. David James Gregory allows following entities to bill medicare on his behalf.
Entity NameCedars-sinai Medical Care Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316984388
PECOS PAC ID: 0941106645
Enrollment ID: O20040202000464
Entity NameCedars-sinai Medical Center Pharmacy #3
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639172372
PECOS PAC ID: 0446169114
Enrollment ID: O20040204000886

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. David James Gregory 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
David James Gregory, DO
4140 W 190th St,
Torrance, CA 90504-5513

Ph: () -
David James Gregory, DO
444 S San Vicente Blvd Ste 603,
Los Angeles, CA 90048-4178

Ph: (310) 423-9718

Reviews and Comments


Orthopaedic Surgery Doctors in Los Angeles, CA

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Dr. William T Long, M.D.
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Dr. Tracey Crothers Didinger, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 1200 N. State Street, Gnh 3900, Los Angeles, CA 90033
Phone: 323-226-7346    

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).

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