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MR. STEPHEN TROY PORTER CRNA
NPI 1063584449
Nurse Anesthetist, Certified Registered in Mesa, AZ

Active since November 14, 2006Accepts Medicare Assignment
78.31/100
CMS Quality Rating
135 S POWER RD STE 110, MESA, AZ 85206(480) 745-8577 Get Directions Write a Review

NPPES record last updated: June 14, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 14, 2023, Apr 25, 2017 (2 updates tracked since 2017).

About Mr. Stephen Troy Porter Crna NPPES

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

MR. STEPHEN TROY PORTER CRNA (NPI 1063584449) is an individual nurse anesthetist, certified registered in Mesa, Arizona, licensed in Arizona (CRNA0827) and active in the NPI registry since November 2006. He is a graduate of Other (2006).

NPPES Registry Identity

NPI1063584449
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameMR. STEPHEN TROY PORTERCredential: CRNA
Location Address135 S POWER RD STE 110Mesa, AZ 85206-5245
Mailing Address20641 S 196th StQueen Creek, AZ 85142-6242 · (618) 322-4507
Phone(480) 745-8577
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateNovember 14, 2006
Last NPPES UpdateJune 14, 20232 updates tracked since enumeration
NPPES CertifiedJune 14, 2023
✔ NPI 1063584449 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 AZ · CRNA0827✔ Licensed in IL · 209006282
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.
135 S POWER RD STE 110, Mesa, AZ 85206
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Accepted Insurance

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

Mr. Stephen Troy Porter 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 ID8921008384
PECOS Enrollment IDI20120828000117

Medicare Billing Reassignments

5

Medicare enrollment records show Stephen Porter reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ascend Anesthesia LLC
3.7 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
Central Arizona Endoscopy, LLC
6.6 mi
Nurse Anesthetist, Certified Registered
2158 N GILBERT RD, BLDG 1 SUITE 103
Mesa, AZ 85203
  • Reassigned Medicare billing, Arizona enrollment
  • 16 clinicians in this Medicare group
NPI 1386020519 (480) 751-3002
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
Anesthesia Partners & Management LLC
1,638 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
Anesthesia Dynamics LLC
1,779 mi
Anesthesiology
206 2ND ST E
Bradenton, FL 34208
  • Reassigned Medicare billing, Arizona enrollment
  • 15 clinicians in this Medicare group
NPI 1073001012 (888) 851-4642

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 5

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 insertion of permanent heart pacemaker 00530
Anesthesia for a permanent heart pacemaker insertion helps to ensure comfort and calmness during the procedure. It's typically a local anesthetic, numbing the area where the pacemaker is inserted. Sedation may also be given to help you relax. You'll be awake, but may not remember the procedure.
138 services137 patients
Anesthesia for insertion or replace of pacing heart defibrillator 00534
Anesthesia for the insertion or replacement of a pacing heart defibrillator is a pain management process. It makes you comfortable during the procedure. It can be local, making you numb in a specific area, or general, where you're asleep and feel no pain.
59 services59 patients
Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance 01938
This procedure involves using anesthesia to numb your lower back for certain procedures like injections, drainage, or aspiration on your spine or spinal cord. Imaging guidance is used to accurately locate the area to be treated, ensuring precision and safety.
45 services43 patients
Anesthesia for other x-ray on vein or lymph system 01930
Anesthesia for an x-ray on the vein or lymph system is a medical procedure where medication is given to eliminate any discomfort. It helps ensure you don't feel pain during the x-ray. It can be general (you're asleep) or local (only a specific area is numbed).
39 services35 patients
Anesthesia for x-ray on arteries 01924
Anesthesia for x-ray on arteries is a procedure to ensure comfort during imaging tests. A medicine is given to make you relaxed or sleep, minimizing any discomfort. It's typically used for invasive procedures to examine arteries for blockages or other issues.
21 services19 patients

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.31/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.49
Improvement Activities40

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DISCOVER SURGICAL CENTER LLC
Clinic/Center (Ambulatory Surgical)
135 S POWER RD STE 110
MESA, AZ 85206
Maricopa County (480) 745-8577

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 Stephen Porter's NPI number?

The NPI number for Stephen Porter is 1063584449. It was assigned to this individual provider in the NPPES registry on November 14, 2006.

Where is Stephen Porter located?

Stephen Porter practices at 135 S Power Rd Ste 110, Mesa, AZ 85206. The listed phone number is (480) 745-8577.

What is Stephen Porter's specialty?

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

Is Stephen Porter enrolled in Medicare?

Yes. Stephen Porter 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 Stephen Porter's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Porter reassigns Medicare benefits to 5 organizations: Ascend Anesthesia LLC (Mesa, AZ), Central Arizona Endoscopy, LLC (Mesa, AZ), Guide Anesthesia Az LLC (Phoenix, AZ), Anesthesia Partners & Management LLC (Brighton, MI) and Anesthesia Dynamics LLC (Bradenton, FL). 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 Stephen Porter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Porter accept?

Health plans from Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc list Stephen Porter 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 Stephen Porter was last updated on June 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.