Amy Tesar, DO - Medicare Internal Medicine in Mason City, IA

Amy Tesar, DO is a medicare enrolled "Internal Medicine" physician in Mason City, Iowa. She graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice North Iowa Mercy Clinics and her current practice location is 1000 4th St Sw, Mason City, Iowa. You can reach out to her office (for appointments etc.) via phone at (641) 428-6999.

Amy Tesar is licensed to practice in Iowa (license number DO-03524) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1841307477.

Contact Information

Amy Tesar, DO
1000 4th St Sw,
Mason City, IA 50401-2800
(641) 428-6999
(641) 428-6678



Physician's Profile

Full NameAmy Tesar
GenderFemale
SpecialityInternal Medicine
Experience22 Years
Location1000 4th St Sw, Mason City, Iowa
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Amy Tesar graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1841307477
  • Provider Enumeration Date: 08/23/2006
  • Last Update Date: 04/26/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8527089580
  • Enrollment ID: I20051219000247

Medical Identifiers

Medical identifiers for Amy Tesar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841307477NPI-NPPES
04350OtherIAWELLMARK
0480475MedicaidIA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 03524 (Iowa)Secondary
208M00000XHospitalist 3524 (Iowa)Secondary
207R00000XInternal Medicine DO-03524 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercyone North Iowa Medical CenterMason city, IAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Iowa Mercy Clinics7810809076242

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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. Amy Tesar allows following entities to bill medicare on her behalf.
Entity NameNorth Iowa Mercy Clinics
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780278242
PECOS PAC ID: 7810809076
Enrollment ID: O20031105000273

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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. Amy Tesar 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
Amy Tesar, DO
621 S Illinois Ave, Suite 103,
Mason City, IA 50401-5489

Ph: (515) 532-2811
Amy Tesar, DO
1000 4th St Sw,
Mason City, IA 50401-2800

Ph: (641) 428-6999

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Old and poor people are less likely to have knee replacement surgery, although their need is often greater than that of younger, more affluent people, reveals a large scale study in the Annals of the Rheumatic Diseases.

Read more News

› Verified 5 days ago


Internal Medicine Doctors in Mason City, IA

Burt Humburg, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-7000    Fax: 641-428-6383
Sumathy Nagraj Iyengar, M.D.,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mercy Medical Center-hospitalist Dept, Mason City, IA 50401
Phone: 641-428-7000    
Mark C Johnson, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 910 N Eisenhower Ave, Mason City, IA 50401
Phone: 641-428-7799    Fax: 641-428-5274
Dr. Joseph Dean Mccracken, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-6300    Fax: 641-428-6347
Nathaniel Hitt, DO
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 621 S Illinois Ave Ste 100, Mason City, IA 50401
Phone: 641-428-6900    Fax: 641-428-3909
Dr. Byron T Beasley, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5300    Fax: 641-494-5329
Radu Hagau, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5300    Fax: 641-494-5321

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