MEGAN MONSEN
NPI 1396488383
Nurse Anesthetist, Certified Registered in Mason City, IA

Active since April 18, 2022PECOS EnrolledAccepts Medicare Assignment
1000 4TH ST SW, MASON CITY, IA 50401(641) 428-7000 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 7, 2023, Nov 9, 2022, Apr 18, 2022 (3 updates tracked since 2022).

About Megan Monsen NPPES

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

MEGAN MONSEN (NPI 1396488383) is an individual nurse anesthetist, certified registered in Mason City, Iowa, licensed in Iowa (D169512) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1396488383
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameMEGAN MONSEN
Location Address1000 4TH ST SWMason City, IA 50401-2800
Mailing Address4683 400th StBuffalo Center, IA 50424-7618
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 18, 2022
Last NPPES UpdateMarch 7, 20233 updates tracked since enumeration
NPPES CertifiedMarch 7, 2023
✔ NPI 1396488383 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in IA · D169512
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.
Also ListedRegistered Nurse · General PracticeTaxonomy 163WG0000X · License 126981 (IA)
1000 4TH ST SW, Mason City, IA 50401

Accepted 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

Megan Monsen 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 ID3779965595
PECOS Enrollment IDI20220726003321
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 Reassignment

Medicare enrollment records show Megan Monsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Nurse Practitioner
1000 4TH ST SW
Mason City, IA 50401
  • Reassigned Medicare billing, Iowa enrollment
  • 420 clinicians in this Medicare group

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 3

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 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.
22 services22 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
19 services19 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
14 services14 patients

Hospital Affiliations CMS Care Compare

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

Mercyone North Iowa Medical Center

Acute Care Hospitals · Mason City, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160064
Location1000 Fourth Street SWMason City, IA 50401 · Cerro Gordo 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.

Social Worker (Clinical)
1000 4TH ST SW, SUITE BS
MASON CITY, IA 50401
Internal Medicine
1000 4TH ST SW
MASON CITY, IA 50401
Hospitalist
1000 4TH ST SW, MERCY MEDICAL CENTER-HOSPITALIST DEPT
MASON CITY, IA 50401
Emergency Medicine
1000 4TH ST SW
MASON CITY, IA 50401
Nurse Practitioner (Family)
1000 4TH ST SW
MASON CITY, IA 50401
Nurse Anesthetist, Certified Registered
1000 4TH ST SW
MASON CITY, IA 50401
Hospitalist
1000 4TH ST SW, SUITE HOSP
MASON CITY, IA 50401
Nurse Practitioner
1000 4TH ST SW
MASON CITY, IA 50401

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 Megan Monsen's NPI number?

The NPI number for Megan Monsen is 1396488383. It was assigned to this individual provider in the NPPES registry on April 18, 2022.

Where is Megan Monsen located?

Megan Monsen practices at 1000 4th St SW, Mason City, IA 50401. The listed phone number is (641) 428-7000.

What is Megan Monsen's specialty?

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

Is Megan Monsen enrolled in Medicare?

Yes. Megan Monsen 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 organization bills Medicare for Megan Monsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Megan Monsen reassigns Medicare benefits to North Iowa Mercy Clinics (Mason City, IA). The 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 Megan Monsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Megan Monsen accept?

Health plans from Wellmark Health Plan of Iowa, Inc. list Megan Monsen 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 Megan Monsen affiliated with any hospitals?

According to CMS data, Megan Monsen is affiliated with Mercyone North Iowa Medical Center.

When was this NPI record last updated?

The NPPES record for Megan Monsen was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.