1. Home
  2. Directory
  3. California
  4. Newport Beach
  5. Transplant Surgery
  6. NPI Profile

DR. AARON JOSEPH AHEARN MD-PHD
NPI 1588839997
Transplant Surgery in Newport Beach, CA

Active since April 25, 2008PECOS EnrolledAccepts Medicare Assignment
500 SUPERIOR AVE, NEWPORT BEACH, CA 92663(949) 764-5793(949) 764-5792 Get Directions Write a Review

NPPES record last updated: May 29, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 29, 2026, Oct 27, 2020, Aug 24, 2018 and 2 more (5 updates tracked since 2016).

About Dr. Aaron Joseph Ahearn Md-phd NPPES

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

DR. AARON JOSEPH AHEARN MD-PHD (NPI 1588839997) is an individual transplant surgery provider in Newport Beach, California, licensed in California (A103008) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (2006).

NPPES Registry Identity

NPI1588839997
Entity TypeIndividualMale
Primary Taxonomy204F00000X
Provider Legal NameDR. AARON JOSEPH AHEARNCredential: MD-PHD
Location Address500 SUPERIOR AVENewport Beach, CA 92663-3657
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 442-5908
Phone(949) 764-5793
Fax(949) 764-5792
Sole ProprietorNo
Medical School CMSUniversity Of Maryland School Of MedicineGraduated 2006
Enumeration DateApril 25, 2008
Last NPPES UpdateMay 29, 20265 updates tracked since enumeration
NPPES CertifiedMay 29, 2026
✔ NPI 1588839997 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyTransplant SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code204F00000X
Licenses✔ Licensed in CA · A103008✔ Licensed in MA · 262959
Definition

A surgeon who specializes in transplant surgery. Source: National Uniform Claim Committee

500 SUPERIOR AVE, Newport Beach, CA 92663
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Aaron Joseph Ahearn Md-phd 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 ID2567600984
PECOS Enrollment IDI20130524000211
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.

Areas of Expertise CMS Part B claims

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
122 services22 patients

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
2 suppliers11 claims22 services$6.57 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers11 claims2,175 services$0.33 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
2 suppliers14 claims14 services$18.90 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers15 claims17 services$12.63 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

HOAG ENDOSCOPY CENTER
Clinic/Center (Endoscopy)
500 SUPERIOR AVE, SUITE 120
NEWPORT BEACH, CA 92663
Orange County (949) 722-9600
PEDITRIC SUBSPECIALY FACULTY
Pediatrics
500 SUPERIOR AVE
NEWPORT BEACH, CA 92663
Orange County (714) 516-4295
NEWPORT NEUROHOSPITALIST MEDICAL GROUP, INC
Psychiatry & Neurology (Neurology)
500 SUPERIOR AVE, SUITE 305
NEWPORT BEACH, CA 92663
Orange County (949) 764-1843
GREATER NEWPORT PHYSICIANS ANTICOAGULATION CENTER
Clinic/Center
500 SUPERIOR AVE, SUITE 150
NEWPORT BEACH, CA 92663
Orange County (949) 759-2222
HOAG OUTPATIENT CENTERS, LLC
Clinic/Center (Ambulatory Surgical)
500 SUPERIOR AVE, SUITE 120
NEWPORT BEACH, CA 92663
Orange County (949) 764-7580
DR. DENNIS T JORDANIDES M.D.
Internal Medicine
500 SUPERIOR AVE, SUITE 135
NEWPORT BEACH, CA 92663
Orange County (949) 734-7446
DR. VINITA JAIN SPEIR M.D.
Obstetrics & Gynecology
500 SUPERIOR AVE, SUITE 310
NEWPORT BEACH, CA 92663
Orange County (949) 644-2722
MRS. ANGELA BOHNING RNP
Nurse Practitioner (Obstetrics & Gynecology)
500 SUPERIOR AVE, SUITE 310
NEWPORT BEACH, CA 92663
Orange County (949) 650-7100

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 Aaron Ahearn's NPI number?

The NPI number for Aaron Ahearn is 1588839997. It was assigned to this individual provider in the NPPES registry on April 25, 2008.

Where is Aaron Ahearn located?

Aaron Ahearn practices at 500 Superior Ave, Newport Beach, CA 92663. The listed phone number is (949) 764-5793.

What is Aaron Ahearn's specialty?

The primary specialty registered for this NPI is Transplant Surgery with taxonomy code 204F00000X.

Is Aaron Ahearn enrolled in Medicare?

Yes. Aaron Ahearn 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.

When was this NPI record last updated?

The NPPES record for Aaron Ahearn was last updated on May 29, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.