Timothy Zimmerman, MD - Medicare Internal Medicine in Fort Smith, AR

Timothy Zimmerman, MD is a medicare enrolled "Internal Medicine - Sports Medicine" physician in Fort Smith, Arkansas. His current practice location is 3501 We Knight Dr, Fort Smith, Arkansas. You can reach out to his office (for appointments etc.) via phone at (479) 709-6700.

Timothy Zimmerman is licensed to practice in Arkansas (license number E-16713) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1528521127.

Contact Information

Timothy Zimmerman, MD
3501 We Knight Dr,
Fort Smith, AR 72903-6254
(479) 709-6700
(479) 709-6710

Map and Direction




Physician's Profile

Full NameTimothy Zimmerman
GenderMale
SpecialityInternal Medicine - Sports Medicine
Location3501 We Knight Dr, Fort Smith, Arkansas
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1528521127
  • Provider Enumeration Date: 04/10/2019
  • Last Update Date: 07/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5395088215
  • Enrollment ID: I20231104000346

Medical Identifiers

Medical identifiers for Timothy Zimmerman such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528521127NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RS0010XInternal Medicine - Sports Medicine E-16713 (Arkansas)Primary

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. Timothy Zimmerman allows following entities to bill medicare on his behalf.
Entity NameMercy Clinic Fort Smith Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902073620
PECOS PAC ID: 3870668510
Enrollment ID: O20080814000789
Entity NameMercy Clinic Fort Smith Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699070649
PECOS PAC ID: 3870668510
Enrollment ID: O20110303000543

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. Timothy Zimmerman 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
Timothy Zimmerman, MD
3501 We Knight Dr,
Fort Smith, AR 72903-6254

Ph: (479) 709-6700
Timothy Zimmerman, MD
3501 We Knight Dr,
Fort Smith, AR 72903-6254

Ph: (479) 709-6700

Reviews and Comments


Internal Medicine Doctors in Fort Smith, AR

Dr. David A Hebert, M.D.
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Medicare: Medicare Enrolled
Practice Location: 7301 Rogers Ave, Fort Smith, AR 72903
Phone: 479-314-6000    
Christopher Brian Cross, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 6801 Rogers Ave, Fort Smith, AR 72903
Phone: 479-274-3200    Fax: 479-274-3289
Fiorella Nawar, MD
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Practice Location: 1001 Towson Ave, Fort Smith, AR 72901
Phone: 479-709-7402    
Charles Moussallem, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 1500 Dodson Ave, Suite 280, Fort Smith, AR 72901
Phone: 479-709-7480    Fax: 479-709-7479
Ongkarn Sarasombath, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 6801 Rogers Ave, Fort Smith, AR 72903
Phone: 479-274-2000    Fax: 479-274-2194
Dr. Jacob K Joseph, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6801 Rogers Ave, Fort Smith, AR 72903
Phone: 479-274-3200    Fax: 479-274-3289
Dr. Paul K Howell Jr., MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6801 Rogers Ave, Fort Smith, AR 72903
Phone: 479-452-2077    

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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