Dr William Allen Rumack, MD - Medicare Orthopedic Surgery in West Hills, CA

Dr William Allen Rumack, MD is a medicare enrolled "Orthopaedic Surgery" physician in West Hills, California. He went to University Of Colorado School Of Medicine, Denver and graduated in 1996 and has 28 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Professional Orthopedics Medical Associates A Prof Medical Corp and his current practice location is 7345 Medical Center Dr, Suite #280, West Hills, California. You can reach out to his office (for appointments etc.) via phone at (818) 888-2855.

Dr William Allen Rumack is licensed to practice in California (license number A79561) 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 1740257542.

Contact Information

Dr William Allen Rumack, MD
7345 Medical Center Dr, Suite #280,
West Hills, CA 91307-1937
(818) 888-2855
(818) 888-0702

Map and Direction




Physician's Profile

Full NameDr William Allen Rumack
GenderMale
SpecialityOrthopedic Surgery
Experience28 Years
Location7345 Medical Center Dr, West Hills, 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 William Allen Rumack attended and graduated from University Of Colorado School Of Medicine, Denver in 1996
  NPI Data:
  • NPI Number: 1740257542
  • Provider Enumeration Date: 03/01/2006
  • Last Update Date: 05/11/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7012923667
  • Enrollment ID: I20060306000682

Medical Identifiers

Medical identifiers for Dr William Allen Rumack such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740257542NPI-NPPES
1104410001OtherCAMEDICARE DME SUPPLIER #
955118OtherCAQME #
DR 38255OtherCOMEDICAL BOARD OF COLORADO
A79561OtherCAMEDICAL BOARD OF CA
K2785OtherTXMEDICAL BOARD OF TEXAS
W8424MedicaidCA
WA79561BOtherCAMEDICARE PERFORMING
953718732OtherCATAX ID #

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery K2785 (Texas)Secondary
207X00000XOrthopaedic Surgery DR38255 (Colorado)Secondary
207X00000XOrthopaedic Surgery A79561 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
West Hills Hospital & Medical CenterWest hills, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Professional Orthopedics Medical Associates A Prof Medical Corp15572538873

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 William Allen Rumack allows following entities to bill medicare on his behalf.
Entity NameProfessional Orthopedics Medical Associates A Prof Medical Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255362687
PECOS PAC ID: 1557253887
Enrollment ID: O20040329001840

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 William Allen Rumack 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 William Allen Rumack, MD
7345 Medical Center Dr, Suite #280,
West Hills, CA 91307-1937

Ph: (818) 888-2855
Dr William Allen Rumack, MD
7345 Medical Center Dr, Suite #280,
West Hills, CA 91307-1937

Ph: (818) 888-2855

Reviews and Comments


Orthopaedic Surgery Doctors in West Hills, CA

Dr. Michael Lee, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 7345 Medical Center Dr, Suite #280, West Hills, CA 91307
Phone: 818-888-2855    Fax: 818-888-0702
Taylor Everett Hobson, M.D.
Orthopedic Surgery
Medicare: Medicare Enrolled
Practice Location: 7301 Medical Center Dr Ste 400, West Hills, CA 91307
Phone: 818-600-0390    
Dr. Johnny T Li, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 7345 Medical Center Dr, Suite #280, West Hills, CA 91307
Phone: 818-888-2855    Fax: 818-888-0702
Dr. Bernard Michael Diamond, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 23101 Sherman Pl, Sutie 210, West Hills, CA 91307
Phone: 818-348-4110    Fax: 818-348-4208
Nirav Jayprakash Shah, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 7301 Medical Center Dr, Suite 400, West Hills, CA 91307
Phone: 818-264-3344    Fax: 818-264-3433
Neil Sardesai, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 7301 Medical Center Dr Ste 400, West Hills, CA 91307
Phone: 818-264-3344    
Dr. Evan Jay Bachner, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 7301 Medical Center Dr, Ste 400, West Hills, CA 91307
Phone: 818-264-3344    Fax: 818-264-3433

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.