COREY FARNUM CRNA
NPI 1881707834
Nurse Anesthetist, Certified Registered in Clarion, IA

Q: What is Corey Farnum's NPI number?

The NPI number for Corey Farnum is 1881707834. It was assigned to this individual provider in the NPPES registry on August 16, 2006.

Q: What is Corey Farnum's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Corey Farnum was last updated on December 17, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since August 16, 2006PECOS EnrolledAccepts Medicare Assignment

1316 S MAIN ST, CLARION, IA 50525(402) 449-4847(402) 449-4885 Get Directions Write a Review

NPPES record last updated: December 17, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 17, 2019, Jan 18, 2017 (2 updates tracked since 2017).

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About Corey Farnum Crna NPPES

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

COREY FARNUM CRNA (NPI 1881707834) is an individual nurse anesthetist, certified registered in Clarion, Iowa, licensed in Iowa (D143569) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1881707834

Entity TypeIndividualMale

Primary Taxonomy367500000X

Provider Legal NameCOREY FARNUMCredential: CRNA

Location Address1316 S MAIN STClarion, IA 50525-2019

Mailing Address1316 S Main StClarion, IA 50525-2019 · (515) 532-2811 · Fax (515) 532-9245

Phone(402) 449-4847

Fax(402) 449-4885

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateAugust 16, 2006

Last NPPES UpdateDecember 17, 20192 updates tracked since enumeration

✔ NPI 1881707834 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

Licenses✔ Licensed in IA · D143569✔ Licensed in NE · 100900

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.

1316 S MAIN ST, Clarion, IA 50525

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Wellmark Health Plan of Iowa, Inc..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

Corey Farnum 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 ID2668412776

PECOS Enrollment IDI20161111001151

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 Corey Farnum reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mason City Ambulatory Surgery Center, LLC

40 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

Alegent Creighton Clinic

148 mi

Family Medicine

800 MERCY DR
Council Bluffs, IA 51503

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

NPI 1598811069 (855) 524-4001

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.

107 services97 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.

21 services21 patients

Anesthesia for other procedure on skin, muscles, or nerves of head, neck, and upper back 00300

Anesthesia for procedures on skin, muscles, or nerves of the head, neck, and upper back involves using medication to numb the area or make you unconscious during the procedure. This ensures you don't feel pain or discomfort. It's safe and monitored by professionals.

14 services14 patients

Anesthesia for other procedure on eye 00140

Anesthesia for an eye procedure involves administering medication to numb your eye and surrounding area, ensuring you feel no pain during the operation. It can be local (only the eye area) or general (whole body). It's safe and helps make the procedure comfortable.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50525 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.

DR. JESSICA LYNN ROOKER D- NP

Nurse Practitioner (Gerontology)