Thomas Eugene Horst, MD - Medicare Family Practice in Ajo, AZ

Thomas Eugene Horst, MD is a medicare enrolled "Family Medicine" physician in Ajo, Arizona. He went to University Of Washington School Of Medicine and graduated in 1979 and has 47 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Ajo Community Health Center and his current practice location is 410 N Malacate St Ste 100, Ajo, Arizona. You can reach out to his office (for appointments etc.) via phone at (520) 387-5651.

Thomas Eugene Horst is licensed to practice in Arizona (license number 51196) 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 1871642082.

Contact Information

Thomas Eugene Horst, MD
410 N Malacate St Ste 100,
Ajo, AZ 85321-2254
(520) 387-5651
(520) 387-6036

Map and Direction




Physician's Profile

Full NameThomas Eugene Horst
GenderMale
SpecialityFamily Practice
Experience47 Years
Location410 N Malacate St Ste 100, Ajo, Arizona
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:
  • Thomas Eugene Horst attended and graduated from University Of Washington School Of Medicine in 1979
  NPI Data:
  • NPI Number: 1871642082
  • Provider Enumeration Date: 01/09/2007
  • Last Update Date: 06/30/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5698796480
  • Enrollment ID: I20160209000197

Medical Identifiers

Medical identifiers for Thomas Eugene Horst such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871642082NPI-NPPES
2025929MedicaidWA
8335606MedicaidWA
P01769824 - DV4997OtherWARAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine MD00020253 (Washington)Secondary
207Q00000XFamily Medicine 51196 (Arizona)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ajo Community Health Center347644186611

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. Thomas Eugene Horst allows following entities to bill medicare on his behalf.
Entity NameAjo Community Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114037496
PECOS PAC ID: 3476441866
Enrollment ID: O20040308000777

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. Thomas Eugene Horst 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
Thomas Eugene Horst, MD
410 N Malacate St Ste 100,
Ajo, AZ 85321-2254

Ph: (520) 387-5651
Thomas Eugene Horst, MD
410 N Malacate St Ste 100,
Ajo, AZ 85321-2254

Ph: (520) 387-5651

Reviews and Comments


Family Medicine Doctors in Ajo, AZ

Jeffrey R Lavoy, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 410 N Malacate St, Ajo, AZ 85321
Phone: 520-387-5651    Fax: 520-387-6036
Ms. Carol A Johnson, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 410 N Malacate St, Ajo, AZ 85321
Phone: 520-387-5651    Fax: 520-387-6036

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.