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DR. BRENNA J. DERKSEN MD
NPI 1518377985
Emergency Medicine in Phoenix, AZ

Active since May 06, 2014PECOS Enrolled
350 W THOMAS RD, PHOENIX, AZ 85013(602) 406-3000(602) 798-0944 Get Directions Write a Review

NPPES record last updated: December 27, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jul 26, 2018, Jun 28, 2018 (2 updates tracked since 2018).

About Dr. Brenna J. Derksen Md NPPES

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

DR. BRENNA J. DERKSEN MD (NPI 1518377985) is an individual emergency medicine provider in Phoenix, Arizona, licensed in Arizona (60780) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of University Of Arizona College Of Medicine (2014).

NPPES Registry Identity

NPI1518377985
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. BRENNA J. DERKSENCredential: MD
Location Address350 W THOMAS RDPhoenix, AZ 85013-4496
Mailing AddressPo Box 232410San Diego, CA 92193-2410
Phone(602) 406-3000
Fax(602) 798-0944
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2014
Enumeration DateMay 6, 2014
Last NPPES UpdateDecember 27, 20232 updates tracked since enumeration
NPPES CertifiedDecember 27, 2023
✔ NPI 1518377985 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in AZ · 60780✔ Licensed in CA · A140594
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
350 W THOMAS RD, Phoenix, AZ 85013
Open in Google Maps ↗

Secondary Practice Location 1

Location 1200 W Arbor DrSan Diego, CA 92103 · Phone (858) 657-7000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Brenna J. Derksen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1759638463
PECOS Enrollment IDI20210428001721, I20251009004751
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

12

Medicare enrollment records show Brenna Derksen reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Empower St Josephs PLLC
Same address
Emergency Medicine
350 W THOMAS RD
Phoenix, AZ 85013
  • Reassigned Medicare billing, Arizona enrollment
  • 55 clinicians in this Medicare group
NPI 1154015089 (480) 221-8059
Honorhealth Ambulatory
1.1 mi
Cardiovascular Disease
340 E PALM LN STE A175
Phoenix, AZ 85004
  • Reassigned Medicare billing, Arizona enrollment
  • 822 clinicians in this Medicare group
NPI 1548886500 (602) 386-1100
Arizona Acute Medical Services 1 PC
2.4 mi
Hospitalist
1930 E THOMAS RD
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 302 clinicians in this Medicare group
NPI 1154860674 (602) 532-1000
Arizona Post-Acute Medical Services 1 PC
3.0 mi
Hospitalist
2509 N 24TH ST
Phoenix, AZ 85008
  • Reassigned Medicare billing, Arizona enrollment
  • 66 clinicians in this Medicare group
NPI 1093254419 (602) 789-0344
Emcare - Pnx Emergency Physicians LLC
5.9 mi
Emergency Medicine
250 E DUNLAP AVE
Phoenix, AZ 85020
  • Reassigned Medicare billing, Arizona enrollment
  • 153 clinicians in this Medicare group
NPI 1902855992 (954) 939-5000
Honorhealth
6.0 mi
General Acute Care Hospital
250 E DUNLAP AVE
Phoenix, AZ 85020
  • Reassigned Medicare billing, Arizona enrollment
  • 267 clinicians in this Medicare group
NPI 1770690695 (602) 870-6304
Loop 101 Emergency Physicians LLC
13 mi
Emergency Medicine
19829 N 27TH AVE
Phoenix, AZ 85027
  • Reassigned Medicare billing, Arizona enrollment
  • 122 clinicians in this Medicare group
NPI 1376573378 (954) 939-5000
303 Emergency Physicians PLLC
159 mi
Emergency Medicine
2400 S AVENUE A
Yuma, AZ 85364
  • Reassigned Medicare billing, Arizona enrollment
  • 141 clinicians in this Medicare group
NPI 1518398585 (954) 939-5000
Nm Pacs 2 LLC
337 mi
Hospitalist
10101 LAGRIMA DE ORO RD NE
Albuquerque, NM 87111
  • Reassigned Medicare billing, Arizona enrollment
  • 64 clinicians in this Medicare group
NPI 1366928749 (865) 693-1000
Tele911 California Emergency Medical Group Inc
351 mi
Emergency Medical Services
155 N LAKE AVE STE 800
Pasadena, CA 91101
  • Reassigned Medicare billing, California enrollment
  • 22 clinicians in this Medicare group
NPI 1720670268 (254) 835-3911

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 6

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
233 services229 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
179 services170 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
92 services91 patients
Management of oxygen chamber therapy 99183
Oxygen chamber therapy involves breathing pure oxygen in a pressurized room or tube. It's used to treat various conditions like wounds that won't heal due to diabetes or radiation injury. In this therapy, your body's tissues get more oxygen to promote healing and fight infection.
36 services14 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
26 services26 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
14 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85013 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
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.

DR. JASPREET SIAN M.D.
Student in an Organized Health Care Education/Training Program
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 406-3540
DR. JACOB WESLEY SANDERS
Student in an Organized Health Care Education/Training Program
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 406-6262
SANFORD ORNSTEIN M.D.
Radiology (Diagnostic Radiology)
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 406-3430
LINDLEY T BLISS MD
Hospitalist
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 615-5672
DR. TILINA N. HU MD
Radiology (Diagnostic Radiology)
350 W THOMAS RD, RADIOLOGY DEPARTMENT
PHOENIX, AZ 85013
Maricopa County (602) 406-3430
JASON AARON BESTE M.D.
Hospitalist
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 406-5590
JOEL JAMES HAYDEN MD
Radiology (Diagnostic Radiology)
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 406-3430
SARAH BAHSAS
Family Medicine
350 W THOMAS RD
PHOENIX, AZ 85013
Maricopa County (602) 406-3350

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 Brenna Derksen's NPI number?

The NPI number for Brenna Derksen is 1518377985. It was assigned to this individual provider in the NPPES registry on May 6, 2014.

Where is Brenna Derksen located?

Brenna Derksen practices at 350 W Thomas Rd, Phoenix, AZ 85013. The listed phone number is (602) 406-3000.

What is Brenna Derksen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Brenna Derksen enrolled in Medicare?

Yes. Brenna Derksen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Brenna Derksen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brenna Derksen reassigns Medicare benefits to 12 organizations: Empower St Josephs PLLC (Phoenix, AZ), Honorhealth Ambulatory (Phoenix, AZ), Arizona Acute Medical Services 1 PC (Phoenix, AZ), Arizona Post-Acute Medical Services 1 PC (Phoenix, AZ), Emcare - Pnx Emergency Physicians LLC (Phoenix, AZ) and 7 more organizations, listed in the Medicare section above. 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 Brenna Derksen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Brenna Derksen accept?

Health plans from Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Brenna Derksen 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 Brenna Derksen was last updated on December 27, 2023. 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.