Nikki Ann Riley, CRNA - Medicare Nurse Anesthetist, Certified Registered in Mason City, IA

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Nikki Ann Riley, CRNA is a medicare enrolled "Nurse Anesthetist, Certified Registered" in Mason City, Iowa. 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) 428-7000.

Nikki Ann Riley is licensed to practice in Iowa (license number 143280) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1346694072.

Contact Information

Nikki Ann Riley, CRNA
1000 4th St Sw,
Mason City, IA 50401-2800
(641) 428-7000
Not Available

Map and Direction




Provider's Profile

Full NameNikki Ann Riley
GenderFemale
SpecialityNurse Anesthetist, Certified Registered
Location1000 4th St Sw, Mason City, Iowa
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1346694072
  • Provider Enumeration Date: 04/19/2016
  • Last Update Date: 07/18/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 9436441862
  • Enrollment ID: I20190627002875

Medical Identifiers

Medical identifiers for Nikki Ann Riley such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1346694072NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered AP60862816 (Washington)Secondary
367500000XNurse Anesthetist, Certified Registered 143280 (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. Nikki Ann Riley allows following entities to bill medicare on her behalf.
Entity NamePublic Hospital District #1-a Of Whitman County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366446767
PECOS PAC ID: 8325934987
Enrollment ID: O20040223000506
Entity NamePublic Hospital District No 3 Of Whitman County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922009448
PECOS PAC ID: 7719875020
Enrollment ID: O20040309000090

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. Nikki Ann Riley 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
Nikki Ann Riley, CRNA
1410 6th St Sw,
Mason City, IA 50401-4818

Ph: (641) 424-6704		Nikki Ann Riley, CRNA
1000 4th St Sw,
Mason City, IA 50401-2800

Ph: (641) 428-7000

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in Mason City, IA

Robert D. Froehner, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-422-7000    
Benjamin Jed Knick, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-7000    
Nancy Ann Quinlan, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-7108    Fax: 641-428-7088
Gail E Miller,
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-422-7000    
Nathan Collin Froehner, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-7000    
Jennifer Cooley, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-7000    

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.