Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WALESIA K BERNARD-RILEY CRNA
NPI 1841981842
Nurse Anesthetist, Certified Registered in Mason City, IA

Q: What is Walesia Bernard-riley's NPI number?

The NPI number for Walesia Bernard-riley is 1841981842. It was assigned to this individual provider in the NPPES registry on May 19, 2023.

Q: What is Walesia Bernard-riley's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Active since May 19, 2023PECOS EnrolledAccepts Medicare Assignment

1000 4TH ST SW, MASON CITY, IA 50401(917) 515-8313 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Sep 29, 2026, Dec 10, 2024, Jul 8, 2024 and 2 more (5 updates tracked since 2023).

On this page

About Walesia K Bernard-riley Crna NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WALESIA K BERNARD-RILEY CRNA (NPI 1841981842) is an individual nurse anesthetist, certified registered in Mason City, Iowa, licensed in Iowa (D174524) and active in the NPI registry since May 2023. She is enrolled in Medicare PECOS, is affiliated with Mercyone Des Moines Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1841981842

Entity TypeIndividualFemale

Primary Taxonomy367500000X

Provider Legal NameWALESIA K BERNARD-RILEYCredential: CRNA

Location Address1000 4TH ST SWMason City, IA 50401-2800

Mailing Address30 S Illinois AveMason City, IA 50401-4413 · (917) 515-8313

Phone(917) 515-8313

Sole ProprietorNo

Medical School CMSOtherGraduated 2022

Enumeration DateMay 19, 2023

Last NPPES UpdateSeptember 29, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 29, 2026

✔ NPI 1841981842 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367500000X

License✔ Licensed in IA · D174524

Definition

(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.

1000 4TH ST SW, Mason City, IA 50401

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Secondary Practice Locations 2

Location 1403 1st St SEBelmond, IA 50421-1201 · Phone (844) 474-4321 · Fax (641) 444-5554

Location 21316 S Main StClarion, IA 50525-2019 · Phone (844) 474-4321 · Fax (515) 532-9250

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Health, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Walesia K Bernard-riley Crna is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961863188

PECOS Enrollment IDI20230803001202

Eligible to Order & Refer✔ Part B Labs & Imaging– Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Walesia Bernard-riley reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mason City Ambulatory Surgery Center, LLC

0.1 mi

Anesthesiology

990 4TH ST SW
Mason City, IA 50401

Reassigned Medicare billing, Iowa enrollment
22 clinicians in this Medicare group

NPI 1689251720 (641) 494-2000

Mercy Medical Center - New Hampton

46 mi

Family Medicine

308 N MAPLE AVE
New Hampton, IA 50659

Reassigned Medicare billing, Iowa enrollment
Also billed through NPI 1770651515 (Iowa)
46 clinicians in this Medicare group

NPI 1568474369 (641) 394-2151

Cep America - Anesthesia PC

109 mi

Anesthesiology

1111 6TH AVE
Des Moines, IA 50314

Reassigned Medicare billing, Iowa enrollment
209 clinicians in this Medicare group

NPI 1023809076 (515) 247-3121

Shelby County Chris A Myrtue Memorial Hospital

150 mi

Critical Access

1213 GARFIELD AVE
Harlan, IA 51537

Reassigned Medicare billing, Iowa enrollment
Also billed through NPI 1831717552 (Iowa)
70 clinicians in this Medicare group

NPI 1598871469 (712) 755-5161

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142

Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.

36 services35 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

23 services22 patients

Anesthesia for extensive surgery on spine 00670

Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.

12 services12 patients

Anesthesia for other procedure on urinary system through urethra 00910

Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercyone Des Moines Medical Center

Acute Care Hospitals · Des Moines, IA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160083

Location1111 6th AveDes Moines, IA 50314 · Polk County

Emergency services Birthing friendly

Myrtue Medical Center

Critical Access Hospitals · Harlan, IA

5/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number161374

Location1213 Garfield AvenueHarlan, IA 51537 · Shelby County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$122.23 typical visit price

range $52.96 – $161.40

Typical copayment $30.55 (range $13.24 – $40.35)

Most-billed visit code 99204

Established Patient

$66.36 typical visit price

range $16.91 – $131.98

Typical copayment $16.59 (range $4.22 – $32.99)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LINDA S VOLD LISW

Social Worker (Clinical)

1000 4TH ST SW, SUITE BS
MASON CITY, IA 50401

Cerro Gordo County (641) 422-7797

BURT HUMBURG MD

Internal Medicine

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-7000

SUMATHY NAGRAJ IYENGAR M.D.,

Hospitalist

1000 4TH ST SW, MERCY MEDICAL CENTER-HOSPITALIST DEPT
MASON CITY, IA 50401

Cerro Gordo County (641) 428-7000

DR. SATINDERJIT SINGH M.D.

Emergency Medicine

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-7234

ASHLEY MATERN ARNP

Nurse Practitioner (Family)

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-6999

ROBERT D. FROEHNER CRNA

Nurse Anesthetist, Certified Registered

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 422-7000

DR. THOMAS P DELANEY MD

Hospitalist

1000 4TH ST SW, SUITE HOSP
MASON CITY, IA 50401

Cerro Gordo County (641) 422-7000

NORTH IOWA MERCY CLINICS

Nurse Practitioner

1000 4TH ST SW
MASON CITY, IA 50401

Cerro Gordo County (641) 428-5932

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Walesia Bernard-riley's NPI number?

The NPI number for Walesia Bernard-riley is 1841981842. It was assigned to this individual provider in the NPPES registry on May 19, 2023.

Where is Walesia Bernard-riley located?

Walesia Bernard-riley practices at 1000 4th St SW, Mason City, IA 50401. The listed phone number is (917) 515-8313.

What is Walesia Bernard-riley's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Walesia Bernard-riley enrolled in Medicare?

Yes. Walesia Bernard-riley is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Walesia Bernard-riley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Walesia Bernard-riley reassigns Medicare benefits to 4 organizations: Mason City Ambulatory Surgery Center, LLC (Mason City, IA), Mercy Medical Center - New Hampton (New Hampton, IA), Cep America - Anesthesia PC (Des Moines, IA) and Shelby County Chris A Myrtue Memorial Hospital (Harlan, IA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Walesia Bernard-riley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Walesia Bernard-riley accept?

Health plans from Medica, Oscar Health, Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Walesia Bernard-riley as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Walesia Bernard-riley affiliated with any hospitals?

According to CMS data, Walesia Bernard-riley is affiliated with Mercyone Des Moines Medical Center and Myrtue Medical Center.

When was this NPI record last updated?

The NPPES record for Walesia Bernard-riley was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.