Dr Gregory Tennant, DO - Medicare Orthopedic Surgery in Lancaster, CA

Dr Gregory Tennant, DO is a medicare enrolled "Orthopaedic Surgery" physician in Lancaster, California. He graduated from medical school in 1999 and has 25 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Avors Medical Group and his current practice location is 42135 10th St W Ste 101, Lancaster, California. You can reach out to his office (for appointments etc.) via phone at (661) 726-5005.

Dr Gregory Tennant is licensed to practice in California (license number 20A9121) 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 1073581385.

Contact Information

Dr Gregory Tennant, DO
42135 10th St W Ste 101,
Lancaster, CA 93534-7099
(661) 726-5005
(661) 726-5377

Map and Direction




Physician's Profile

Full NameDr Gregory Tennant
GenderMale
SpecialityOrthopedic Surgery
Experience25 Years
Location42135 10th St W Ste 101, Lancaster, 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 Tennant graduated from medical school in 1999
  NPI Data:
  • NPI Number: 1073581385
  • Provider Enumeration Date: 03/10/2006
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7810973930
  • Enrollment ID: I20050923000643

Medical Identifiers

Medical identifiers for Dr Gregory Tennant such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073581385NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery 20A9121 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Antelope Valley HospitalLancaster, CAHospital
Palmdale Regional Medical CenterPalmdale, CAHospital
Providence Holy Cross Medical CenterMission hills, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Avors Medical Group690198990419

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 Tennant allows following entities to bill medicare on his behalf.
Entity NameAvors Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023297165
PECOS PAC ID: 6901989904
Enrollment ID: O20080214000223

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 Tennant 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 Tennant, DO
42135 10th St W Ste 101,
Lancaster, CA 93534-7099

Ph: (661) 726-5005
Dr Gregory Tennant, DO
42135 10th St W Ste 101,
Lancaster, CA 93534-7099

Ph: (661) 726-5005

Reviews and Comments


Orthopaedic Surgery Doctors in Lancaster, CA

Nitin A Shah, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 44215 15th St W, Ste 110, Lancaster, CA 93534
Phone: 661-945-7802    Fax: 661-949-5872
Russell Odono, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 615 W Avenue L, Lancaster, CA 93534
Phone: 661-729-7100    Fax: 661-951-2795
Dr. William Penn Croom Iv, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 615 W Avenue L, Lancaster, CA 93534
Phone: 661-951-4801    
Mohamed Z. Lameer, M.D.
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 43807 10th St W Ste C, Lancaster, CA 93534
Phone: 661-942-5400    Fax: 661-942-4782
Eric Toshio Owashi, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 42135 10th St W Ste 101, Lancaster, CA 93534
Phone: 661-726-5005    
Dr. Alon Antebi, DO
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 42135 10th St W, Suite 101, Lancaster, CA 93534
Phone: 661-726-5005    Fax: 661-726-5377

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.