1. Home
  2. Directory
  3. Arizona
  4. Mesa
  5. Nurse Anesthetist Certified Registered
  6. NPI Profile

JASON REX LARSON CRNA
NPI 1235957507
Nurse Anesthetist, Certified Registered in Mesa, AZ

Active since September 26, 2024Accepts Medicare Assignment
1155 S POWER RD STE 144, MESA, AZ 85206(800) 402-0881 Get Directions Write a Review

NPPES record last updated: September 26, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Jason Rex Larson Crna NPPES

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

JASON REX LARSON CRNA (NPI 1235957507) is an individual nurse anesthetist, certified registered in Mesa, Arizona, licensed in Arizona (278030) and active in the NPI registry since September 2024. He is a graduate of Other (2024).

NPPES Registry Identity

NPI1235957507
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameJASON REX LARSONCredential: CRNA
Location Address1155 S POWER RD STE 144Mesa, AZ 85206-3715
Mailing Address32344 N 133rd DrPeoria, AZ 85383-6113 · (909) 434-6074
Phone(800) 402-0881
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 26, 2024
NPPES CertifiedSeptember 23, 2024
✔ NPI 1235957507 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 AZ · 278030
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.
1155 S POWER RD STE 144, Mesa, AZ 85206
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.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

Jason Rex Larson 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 ID4284167800
PECOS Enrollment IDI20241104001680

Medicare Billing Reassignments

4

Medicare enrollment records show Jason Larson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ascend Anesthesia LLC
3.1 mi
Nurse Anesthetist, Certified Registered
4620 E BASELINE RD
Mesa, AZ 85206
  • Reassigned Medicare billing, Arizona enrollment
  • 298 clinicians in this Medicare group
NPI 1407642945 (623) 320-0660
Guide Anesthesia Az LLC
23 mi
Nurse Anesthetist, Certified Registered
7301 N 16TH ST STE 102
Phoenix, AZ 85020
  • Reassigned Medicare billing, Arizona enrollment
  • 174 clinicians in this Medicare group
NPI 1649164849 (602) 834-5363
Greater Anesthesia Solutions
36 mi
Anesthesiology
10720 W INDIAN SCHOOL RD STE 19-1039
Phoenix, AZ 85037
  • Reassigned Medicare billing, Arizona enrollment
  • 423 clinicians in this Medicare group
NPI 1124430244 (480) 977-9559
Anesthesia Partners & Management LLC
1,639 mi
Nurse Anesthetist, Certified Registered
8273 GRAND RIVER RD STE 210
Brighton, MI 48114
  • Reassigned Medicare billing, Arizona enrollment
  • 370 clinicians in this Medicare group
NPI 1336530997 (480) 420-4027

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85206 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
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.

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 Jason Larson's NPI number?

The NPI number for Jason Larson is 1235957507. It was assigned to this individual provider in the NPPES registry on September 26, 2024.

Where is Jason Larson located?

Jason Larson practices at 1155 S Power Rd Ste 144, Mesa, AZ 85206. The listed phone number is (800) 402-0881.

What is Jason Larson's specialty?

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

Is Jason Larson enrolled in Medicare?

Yes. Jason Larson 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 Jason Larson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jason Larson reassigns Medicare benefits to 4 organizations: Ascend Anesthesia LLC (Mesa, AZ), Guide Anesthesia Az LLC (Phoenix, AZ), Greater Anesthesia Solutions (Phoenix, AZ) and Anesthesia Partners & Management LLC (Brighton, MI). 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 Jason Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jason Larson accept?

Health plans from Blue Cross Blue Shield of Arizona list Jason Larson 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.

When was this NPI record last updated?

The NPPES record for Jason Larson was last updated on September 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.