Michael L Korthals, OD - Medicare Optometrist in Mason City, IA

Michael L Korthals, OD is a medicare enrolled "Optometrist" provider in Mason City, Iowa. He went to Illinois College Of Optometry At Chicago and graduated in 1999 and has 25 years of diverse experience with area of expertise as Optometry. His current practice location is 422 S Pierce Ave, Mason City, Iowa. You can reach out to his office (for appointments etc.) via phone at (641) 424-0780.

Michael L Korthals is licensed to practice in Iowa (license number 02146) 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 1407880883.

Contact Information

Michael L Korthals, OD
422 S Pierce Ave,
Mason City, IA 50401-2709
(641) 424-0780
(641) 424-2345

Map and Direction




Healthcare Provider's Profile

Full NameMichael L Korthals
GenderMale
SpecialityOptometry
Experience25 Years
Location422 S Pierce Ave, Mason City, Iowa
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:
  • Michael L Korthals attended and graduated from Illinois College Of Optometry At Chicago in 1999
  NPI Data:
  • NPI Number: 1407880883
  • Provider Enumeration Date: 07/10/2006
  • Last Update Date: 12/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2567433238
  • Enrollment ID: I20040804001915

Medical Identifiers

Medical identifiers for Michael L Korthals such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407880883NPI-NPPES
5178720001OtherIADMERC
1204016MedicaidIA
42149949950401OtherIATRICARE
IA0101OtherIAJOHN DEERE
35096OtherIABLUE CROSS & BLUE SHIELD
P00135209OtherIARR MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 02146 (Iowa)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. Michael L Korthals allows following entities to bill medicare on his behalf.
Provider NameClear Lake Optics Corp
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1679767339
PECOS PAC ID: 7214908987
Enrollment ID: O20040804001864

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. Michael L Korthals 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
Michael L Korthals, OD
422 S Pierce Ave Ste 100a,
Mason City, IA 50401-2709

Ph: (641) 424-0780
Michael L Korthals, OD
422 S Pierce Ave,
Mason City, IA 50401-2709

Ph: (641) 424-0780

Reviews and Comments


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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.