DARIN LEE FRERICHS D.O.
NPI 1285687111
Anesthesiology in Des Moines, IA
About Darin Lee Frerichs D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DARIN LEE FRERICHS D.O. (NPI 1285687111) is an individual anesthesiology provider in Des Moines, Iowa, licensed in Iowa (3699) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Iowa Hospital & Clinics, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
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
Darin Lee Frerichs D.o. 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.
Medicare Billing Reassignments
5Medicare enrollment records show Darin Frerichs reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Des Moines, IA 50314
- Reassigned Medicare billing, Iowa enrollment
- 209 clinicians in this Medicare group
West Des Moines, IA 50266
- Reassigned Medicare billing, Iowa enrollment
- 83 clinicians in this Medicare group
Perry, IA 50220
- Reassigned Medicare billing, Iowa enrollment
- 2,190 clinicians in this Medicare group
Cedar Rapids, IA 52401
- Reassigned Medicare billing, Iowa enrollment
- Medicare enrollment name: Mercy Medical Center
- 387 clinicians in this Medicare group
Sioux City, IA 51104
- Reassigned Medicare billing, Iowa enrollment
- 281 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 6
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Iowa Hospital & Clinics
Acute Care Hospitals · Iowa City, IAMercy Medical Center - Cedar Rapids
Acute Care Hospitals · Cedar Rapids, IAMercyone Des Moines Medical Center
Acute Care Hospitals · Des Moines, IAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
DES MOINES, IA 50314
DES MOINES, IA 50314
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 Darin Frerichs's NPI number?
The NPI number for Darin Frerichs is 1285687111. It was assigned to this individual provider in the NPPES registry on May 19, 2006.
Where is Darin Frerichs located?
Darin Frerichs practices at 411 Laurel St Suite 3170, Des Moines, IA 50314. The listed phone number is (515) 283-0463.
What is Darin Frerichs's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Darin Frerichs enrolled in Medicare?
Yes. Darin Frerichs 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 Darin Frerichs's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Darin Frerichs reassigns Medicare benefits to 5 organizations: Cep America - Anesthesia PC (Des Moines, IA), Medical Center Anesthesiologists, P.C. (West Des Moines, IA), State University Of Iowa (Perry, IA), Family Practice Center (Cedar Rapids, IA) and Northwest Iowa Hospital Corporation (Sioux City, 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 Darin Frerichs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Darin Frerichs accept?
Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Darin Frerichs 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 Darin Frerichs affiliated with any hospitals?
According to CMS data, Darin Frerichs is affiliated with University Of Iowa Hospital & Clinics, Mercy Medical Center - Cedar Rapids and Mercyone Des Moines Medical Center.
When was this NPI record last updated?
The NPPES record for Darin Frerichs was last updated on October 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.
# Darin Lee Frerichs, D.O. · NPI 1285687111
Anesthesiology physician in Des Moines, Iowa. Individual provider, active in the CMS NPPES registry since May 19, 2006.
## Identity
- **NPI:** 1285687111 (Entity type: Individual)
- **Enumerated:** May 19, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 3699 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 411 LAUREL ST, SUITE 3170, Des Moines, IA 50314-3017
- **Phone:** (515) 283-0463 · **Fax:** (515) 283-0794
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Cep America - Anesthesia PC (NPI 1023809076, Des Moines, IA); Medical Center Anesthesiologists, P.C. (NPI 1073552428, West Des Moines, IA); State University Of Iowa (NPI 1013965334, Perry, IA); Family Practice Center (NPI 1518946953, Cedar Rapids, IA); Northwest Iowa Hospital Corporation (NPI 1215962550, Sioux City, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** October 22, 2025
- **Other identifiers:** Medicaid 0490458 (IA)
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Source: [NPI Profile](https://npiprofile.com/npi/1285687111) · Data from the CMS NPPES public registry.