Mark C Johnson, MD - Medicare Endocrinology in Mason City, IA

Mark C Johnson, MD is a medicare enrolled "Internal Medicine" physician in Mason City, Iowa. He went to University Of Iowa, Rj & L Carver College Of Medicine and graduated in 1977 and has 47 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice North Iowa Mercy Clinics and his current practice location is 910 N Eisenhower Ave, Mason City, Iowa. You can reach out to his office (for appointments etc.) via phone at (641) 428-7799.

Mark C Johnson is licensed to practice in Iowa (license number 21527) 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 1013923127.

Contact Information

Mark C Johnson, MD
910 N Eisenhower Ave,
Mason City, IA 50401-2800
(641) 428-7799
(641) 428-5274



Physician's Profile

Full NameMark C Johnson
GenderMale
SpecialityEndocrinology
Experience47 Years
Location910 N Eisenhower 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:
  • Mark C Johnson attended and graduated from University Of Iowa, Rj & L Carver College Of Medicine in 1977
  NPI Data:
  • NPI Number: 1013923127
  • Provider Enumeration Date: 07/31/2006
  • Last Update Date: 02/27/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4688678410
  • Enrollment ID: I20060908000162

Medical Identifiers

Medical identifiers for Mark C Johnson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013923127NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 21527 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercyone North Iowa Medical CenterMason city, IAHospital
Hancock County Health SystemBritt, IAHospital
Franklin General HospitalHampton, IAHospital
Floyd County Medical CenterCharles 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. Mark C Johnson allows following entities to bill medicare on his 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. Mark C Johnson 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
Mark C Johnson, MD
621 S Illinois Ave, Suite 103,
Mason City, IA 50401-5489

Ph: (641) 428-3041
Mark C Johnson, MD
910 N Eisenhower Ave,
Mason City, IA 50401-2800

Ph: (641) 428-7799

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After 20 years of annual increases from 5 to 10 percent, rates for new cases of kidney failure have stabilized, according to new research from the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). At the same time, dramatic racial disparities persist.

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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    
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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