Sumathy Nagraj Iyengar, MD, - Medicare Hospitalist in Mason City, IA

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Sumathy Nagraj Iyengar, MD, is a medicare enrolled "Hospitalist" physician in Mason City, Iowa. She graduated from medical school in 1988 and has 36 years of diverse experience with area of expertise as Hospitalist. She is a member of the group practice Cogent Healthcare Of Iowa, Pc and her current practice location is 1000 4th St Sw, Mercy Medical Center-hospitalist Dept, Mason City, Iowa. You can reach out to her office (for appointments etc.) via phone at (641) 428-7000.

Sumathy Nagraj Iyengar is licensed to practice in Iowa (license number 39427) 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 1013173723.

Contact Information

Sumathy Nagraj Iyengar, MD,
1000 4th St Sw, Mercy Medical Center-hospitalist Dept,
Mason City, IA 50401-2800
(641) 428-7000
Not Available

Map and Direction




Physician's Profile

Full NameSumathy Nagraj Iyengar
GenderFemale
SpecialityHospitalist
Experience36 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:
  • Sumathy Nagraj Iyengar graduated from medical school in 1988
  NPI Data:
  • NPI Number: 1013173723
  • Provider Enumeration Date: 08/01/2008
  • Last Update Date: 08/03/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4981873569
  • Enrollment ID: I20110817000030

Medical Identifiers

Medical identifiers for Sumathy Nagraj Iyengar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013173723NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 39427 (Iowa)Secondary
208M00000XHospitalist 39427 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercyone North Iowa Medical CenterMason city, IAHospital
Franklin General HospitalHampton, IAHospital
Mitchell County Regional HealthOsage, IAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cogent Healthcare Of Iowa, Pc377951794152

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. Sumathy Nagraj Iyengar 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
Entity NameCogent Healthcare Of Iowa, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982654497
PECOS PAC ID: 3779517941
Enrollment ID: O20050927000304
Entity NameSound Physicians Of Iowa Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912398249
PECOS PAC ID: 9638497928
Enrollment ID: O20150416002374
Entity NameHospitalist Medicine Physicians Of Iowa - Mason City, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821577875
PECOS PAC ID: 7719238146
Enrollment ID: O20180925002226

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. Sumathy Nagraj Iyengar 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
Sumathy Nagraj Iyengar, MD,
1000 4th St Sw, Mercy Medical Center - Hospitalist Dept,
Mason City, IA 50401-2800

Ph: (641) 428-7000		Sumathy Nagraj Iyengar, MD,
1000 4th St Sw, Mercy Medical Center-hospitalist Dept,
Mason City, IA 50401-2800

Ph: (641) 428-7000

Reviews and Comments


Hospitalist Doctors in Mason City, IA

Dr. Thomas P Delaney, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Suite Hosp, Mason City, IA 50401
Phone: 641-422-7000    
Robert Koller, DO
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 101 S Taylor Ave, Mason City, IA 50401
Phone: 641-428-7766    Fax: 641-428-7788
Jonas Mieczyslaw Kwiatkowski, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-5192    Fax: 641-428-8041

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.