John Haak, CRNA, ARNP
NPI 1437313715 · Certified Registered Nurse Anesthetist · Spencer, IA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Haak, CRNA, ARNP is a Certified Registered Nurse Anesthetist provider in Spencer, IA (NPI 1437313715).
Provider details
- NPI number
- 1437313715
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA, ARNP
- Sex
- Male
- Sole proprietor
- No
- License
- D-112804 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
256 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Anesthesia for Lens Surgery00142 | 52 | $105 |
| Injection of Anesthetic Agent And/Or Steroid Into Other Nerve Or Branch64450 | 29 | $23 |
| Anesthesia for Procedure for Total Knee Joint Replacement01402 | 24 | $253 |
| Injection of Anesthetic Agent And/Or Steroid Into Thigh Nerve (femoral Nerve)64447 | 20 | $56 |
| Anesthesia for Other Procedure on Urinary System Through Urethra00910 | 18 | $101 |
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 18 | $91 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-15
- Last updated
- 2010-04-06
Frequently asked questions
- What is John Haak's NPI number?
- John Haak's National Provider Identifier (NPI) is 1437313715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Haak's specialty?
- John Haak is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Haak located?
- John Haak's practice location on file with NPPES is 1200 1st Ave E, Spencer, IA 51301-4342.
- What is John Haak's phone number?
- The practice phone number listed in the NPPES registry for John Haak is (712) 264-6164.
- Does John Haak accept Medicare?
- John Haak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Haak's NPI active?
- Yes — John Haak's NPI (1437313715) is active in the NPPES registry as of the last update on 2010-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.