COREY FARNUM (CRNA) – Certified Registered Nurse Anesthetist, NPI 1881707834

Certified Registered Nurse Anesthetist

COREY FARNUM (CRNA) is a healthcare provider. based in Clarion, Iowa. specializing in CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA). They hold the professional credentials CRNA. They hold a License No. 100900 (NE). The NPI Number for COREY FARNUM (CRNA) is 1881707834

Main info

Male

22 Years Of Experience

Accepts Medicare Assignment

Name

COREY FARNUM (CRNA)

NPI

1881707834

Phone

(515) 532-2811

Address

1316 S MAIN ST

Enumeration Date

16 August 2006

Last Update Date

17 December 2019

Doctor Profile

Medical School Name

OTHER

Secondary Phone

6414942000

Graduation Year

2004 (22 years ago)

PAC ID

2668412776

Group Practice PAC ID

8123037140

Professional Enrollment ID

I20161111001151

Address ID

IA504012861MA990XXSWXX401

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience71

Completeness75

Years active:19State licenses:2Digital endpointsOther names

522 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in IA

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Provider Addresses for COREY FARNUM (CRNA)

Iowa Specialty Hospital - Clarion, 1316, South Main Street, Clarion, Wright County, Iowa, 50525, United States
CLARION, IA 505252019
Phone: (515) 532-2811
Fax: (515) 532-9245
Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2016-11-11

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

Medicare enrolled
On CMS revalidation list
Due date assigned
Revalidate in PECOS

CMS enrollment records

Enrollment ID	Type	Specialty	State	Due date
I20161111001151	I	Certified Registered Nurse Anesthetist (Crna)	IA	TBD

What to do next

No action required while the due date shows TBD.
Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCS	Description	Services	Beneficiaries	Medicare allowed
00142	Anesthesia for lens surgery	71	67	$0
01402	Anesthesia for procedure for total knee joint replacement	15	15	$0
00140	Anesthesia for other procedure on eye	12	11	$0

View full utilization report →

Insurance plans in this area (ZIP 50525)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 8123037140View full group profile

Name	Specialty	State
MRS. HEIDI MARIE FARNUM (APRN-CRNA)	Certified Registered Nurse Anesthetist (Crna)	NE
MRS. ROBIN ELKINS HOWE (CRNA)	Certified Registered Nurse Anesthetist (Crna)	IA
APRIL D COOK (CRNA)	Certified Registered Nurse Anesthetist (Crna)	IA
TIA PREBECK	Certified Registered Nurse Anesthetist (Crna)	IA
CHRISTOPHER WOODWARD (CRNA)	Certified Registered Nurse Anesthetist (Crna)	IA

Reviews

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Frequently asked questions

Can I verify COREY FARNUM (CRNA) with an NPI only?

You can start verification with NPI 1881707834 for COREY FARNUM (CRNA), then check state licensing separately.

Is COREY FARNUM (CRNA) listed as active for patients and plans?

The listing shows COREY FARNUM (CRNA) as active in the NPI system.

What taxonomy line describes COREY FARNUM (CRNA)?

For research purposes, treat COREY FARNUM (CRNA) as Certified Registered Nurse Anesthetist in this dataset. Clinical services aligned with this taxonomy classification.

Where should I expect COREY FARNUM (CRNA) on a map?

Expect Clarion, Iowa as a primary anchor for COREY FARNUM (CRNA) unless the record lists multiple sites.

Why does COREY FARNUM (CRNA) have multiple addresses?

2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.