JOHN ANTHON HAAK CRNA, ARNP
NPI 1437313715
Nurse Anesthetist, Certified Registered in Spencer, IA

Q: What is John Haak's NPI number?

The NPI number for John Haak is 1437313715. It was assigned to this individual provider in the NPPES registry on July 15, 2008.

Q: What is John Haak'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 John Haak was last updated on April 6, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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 July 15, 2008PECOS EnrolledAccepts Medicare Assignment

1200 1ST AVE E, SPENCER, IA 51301(712) 264-6164 Get Directions Write a Review

NPPES record last updated: April 6, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About John Anthon Haak Crna, Arnp NPPES

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

JOHN ANTHON HAAK CRNA, ARNP (NPI 1437313715) is an individual nurse anesthetist, certified registered in Spencer, Iowa, licensed in Iowa (D-112804) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Spencer Municipal Hospital, and is a graduate of Other (2007).

NPPES Registry Identity

NPI1437313715

Entity TypeIndividualMale

Primary Taxonomy367500000X

Provider Legal NameJOHN ANTHON HAAKCredential: CRNA, ARNP

Location Address1200 1ST AVE ESpencer, IA 51301-4342

Mailing Address818 E 9th StSpencer, IA 51301-4923 · (319) 330-8860

Phone(712) 264-6164

Sole ProprietorNo

Medical School CMSOtherGraduated 2007

Enumeration DateJuly 15, 2008

Last NPPES UpdateApril 6, 2010

✔ NPI 1437313715 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 · D-112804

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.

1200 1ST AVE E, Spencer, IA 51301

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Avera Health Plans, 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

John Anthon Haak Crna, Arnp 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 ID9133259740

PECOS Enrollment IDI20100608000821

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 John Haak reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwest Iowa Anesthesia Associates

Same address

Nurse Anesthetist, Certified Registered

1200 1ST AVE E
Spencer, IA 51301

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

NPI 1871568493 (888) 209-0305

Spencer Municipal Hospital

0.2 mi

Nurse Anesthetist, Certified Registered

1200 1ST AVE E
Spencer, IA 51301

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

NPI 1396603957 (712) 264-6164

Lakes Regional Healthcare

19 mi

Clinic/Center

2408 ZENITH AVENUE, SUITE E
Spirit Lake, IA 51360

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

NPI 1558904417 (712) 336-8796

Pocahontas Community Hospital

37 mi

Critical Access

606 NW 7TH ST
Pocahontas, IA 50574

Reassigned Medicare billing, Iowa enrollment
Also billed through NPI 1346241213 (Iowa)
52 clinicians in this Medicare group

NPI 1609989581 (712) 335-3501

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 13

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.

52 services52 patients

Injection of anesthetic agent and/or steroid into other nerve or branch 64450

This procedure involves injecting an anesthetic agent or steroid into a specific nerve or its branch. The goal is to relieve pain by reducing inflammation and numbing the area. It is commonly used for chronic pain management. The process is safe and usually quick.

29 services24 patients

Anesthesia for procedure for total knee joint replacement 01402

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

24 services24 patients

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

20 services20 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.

18 services16 patients

Injection of substance into lower spine canal using imaging guidance 62323

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

18 services18 patients

Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810

Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.

16 services16 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.

15 services15 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

15 services15 patients

Anesthesia for other procedure on lower abdomen 00840

Anesthesia for a lower abdomen procedure involves medication to eliminate pain during surgery. You might be awake but relaxed and pain-free, or you may be completely unconscious. It's administered to ensure comfort and safety throughout the operation.

13 services13 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

13 services13 patients

Anesthesia for other procedure on nose and sinuses 00160

Anesthesia for procedures on the nose and sinuses involves administering medication to block sensation, ensuring comfort during the procedure. It can be local (numbing a specific area) or general (you're asleep). This helps prevent pain and discomfort during the procedure.

12 services12 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Spencer Municipal Hospital

Acute Care Hospitals · Spencer, IA

5/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number160112

Location1200 1st Avenue EastSpencer, IA 51301 · Clay County

Emergency services Birthing friendly

Pocahontas Community Hospital

Critical Access Hospitals · Pocahontas, IA

OwnershipGovernment - Local

CMS Certification Number161305

Location606 N W 7th StreetPocahontas, IA 50574 · Pocahontas County

Emergency services

Kossuth Regional Health Center

Critical Access Hospitals · Algona, IA

1/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number161353

Location1515 South Phillips StreetAlgona, IA 50511 · Kossuth County

Emergency services Birthing friendly

Palo Alto County Hospital

Critical Access Hospitals · Emmetsburg, IA

OwnershipGovernment - Local

CMS Certification Number161357

Location3201 1st StreetEmmetsburg, IA 50536 · Palo Alto County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 51301 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.

SARAH ELISE JOHNSON

Registered Nurse (Emergency)

1200 1ST AVE E
SPENCER, IA 51301

Clay County (712) 264-6101

NORTHWEST IOWA UROLOGISTS PC

Specialist

1200 1ST AVE E, SUITE B
SPENCER, IA 51301

Clay County (712) 262-6214

KELLIE PERRY

Physical Therapist

1200 1ST AVE E
SPENCER, IA 51301

Clay County (712) 264-6189

DR. JAMES ALAN DELPERDANG MD

Emergency Medicine

1200 1ST AVE E
SPENCER, IA 51301

Clay County (712) 264-6198

RUTH E VETTER OTR/L

Occupational Therapist

1200 1ST AVE E
SPENCER, IA 51301

Clay County (712) 264-6416

NWIA BONE JOINT AND SPORTS SURGEONS

Physical Therapist

1200 1ST AVE E, SUITE C
SPENCER, IA 51301

Clay County (712) 262-7511

KEVIN D CARLSON ATC/L

Specialist/Technologist (Athletic Trainer)

1200 1ST AVE E, SUITE C
SPENCER, IA 51301

Clay County (712) 262-7511

TESSA ROCKWELL DPT

Physical Therapist

1200 1ST AVE E
SPENCER, IA 51301

Clay County (712) 264-6189

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 John Haak's NPI number?

The NPI number for John Haak is 1437313715. It was assigned to this individual provider in the NPPES registry on July 15, 2008.

Where is John Haak located?

John Haak practices at 1200 1st Ave E, Spencer, IA 51301. The listed phone number is (712) 264-6164.

What is John Haak's specialty?

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

Is John Haak enrolled in Medicare?

Yes. John Haak 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 John Haak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Haak reassigns Medicare benefits to 4 organizations: Northwest Iowa Anesthesia Associates (Spencer, IA), Spencer Municipal Hospital (Spencer, IA), Lakes Regional Healthcare (Spirit Lake, IA) and Pocahontas Community Hospital (Pocahontas, 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 John Haak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Haak accept?

Health plans from Avera Health Plans and Wellmark Health Plan of Iowa, Inc. list John Haak 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 John Haak affiliated with any hospitals?

According to CMS data, John Haak is affiliated with Spencer Municipal Hospital, Pocahontas Community Hospital, Kossuth Regional Health Center and Palo Alto County Hospital.

When was this NPI record last updated?

The NPPES record for John Haak was last updated on April 6, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.