DR. AARON B FOWLER M.D.
NPI 1346582053
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Orange, CA

Q: What is Aaron Fowler's NPI number?

The NPI number for Aaron Fowler is 1346582053. It was assigned to this individual provider in the NPPES registry on March 20, 2013.

Q: What is Aaron Fowler's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Q: When was this NPI record last updated?

The NPPES record for Aaron Fowler was last updated on August 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.

Active since March 20, 2013PECOS EnrolledAccepts Medicare Assignment

1310 W STEWART DR, STE 503, ORANGE, CA 92868(714) 997-2224 Get Directions Write a Review

NPPES record last updated: August 6, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 6, 2020, May 13, 2020 (2 updates tracked since 2020).

On this page

About Dr. Aaron B Fowler M.d. NPPES

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

DR. AARON B FOWLER M.D. (NPI 1346582053) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Orange, California, licensed in California (A136191) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with St Vincent Healthcare, and is a graduate of University Of Utah School Of Medicine (2013).

NPPES Registry Identity

NPI1346582053

Entity TypeIndividualMale

Primary Taxonomy208G00000X

Provider Legal NameDR. AARON B FOWLERCredential: M.D.

Location Address1310 W STEWART DR, STE 503Orange, CA 92868-3856

Mailing Address1310 W Stewart Dr, Ste 503Orange, CA 92868-3856 · (714) 997-2224

Phone(714) 997-2224

Sole ProprietorNo

Medical School CMSUniversity Of Utah School Of MedicineGraduated 2013

Enumeration DateMarch 20, 2013

Last NPPES UpdateAugust 6, 20202 updates tracked since enumeration

NPPES CertifiedAugust 6, 2020

✔ NPI 1346582053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians

Taxonomy Code208G00000X

License✔ Licensed in CA · A136191

Definition

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

1310 W STEWART DR, Orange, CA 92868

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.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

Dr. Aaron B Fowler M.d. 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 ID5092136960

PECOS Enrollment IDI20200601001715, I20250828002620, I20260605000547

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

Medicare enrollment records show Aaron Fowler reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Orange County Thoracic And Cardiovascular Surgeons A Med Corp

Same address

Specialist

1310 W STEWART DR, SUITE 503
Orange, CA 92868

Reassigned Medicare billing, California enrollment
12 clinicians in this Medicare group

NPI 1154336949 (714) 997-2224

Scl Health Medical Group - Billings LLC

925 mi

Rural Health

55 N MONTANA AVE
Absarokee, MT 59001

Reassigned Medicare billing, Montana enrollment
438 clinicians in this Medicare group

NPI 1649883539 (406) 328-4497

Providence Health & Services Washington

933 mi

Rural Health

1010 S SCHEUBER RD
Centralia, WA 98531

Reassigned Medicare billing, Washington enrollment
646 clinicians in this Medicare group

NPI 1225763949 (360) 827-7966

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 9

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

35 services33 patients

Coronary artery bypass using artery graft, 1 graft 33533

A coronary artery bypass with one artery graft is a surgical procedure to improve blood flow to your heart. An artery from another part of your body is used to bypass a blocked or narrowed coronary artery. This can help reduce chest pain and risk of heart attack.

34 services34 patients

Harvest of vein using an endoscope 33508

Harvesting a vein using an endoscope is a procedure where a small camera is used to help surgeons remove a vein from your body. This vein is often used to bypass a blocked artery, improving blood flow to your heart.

33 services33 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

31 services31 patients

Exclusion of appendage of left upper chamber of heart performed during other procedure on chest 33268

This is a procedure done on the heart's left upper chamber (atrium). The small pouch-like appendage is sealed off during another chest procedure. This is done to reduce the risk of blood clots forming and causing strokes.

26 services26 patients

Replacement of aortic valve through the skin and femoral artery 33361

This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.

22 services22 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Vincent Healthcare

Acute Care Hospitals · Billings, MT

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number270049

Location1233 N 30th StBillings, MT 59101 · Yellowstone County

Emergency services Birthing friendly

Providence St Peter Hospital

Acute Care Hospitals · Olympia, WA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500024

Location413 Lilly Road NEOlympia, WA 98506 · Thurston County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92868 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

$187.60 typical visit price

range $62.96 – $187.60

Typical copayment $46.90 (range $15.74 – $46.90)

Most-billed visit code 99205

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

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.

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.

AYAZ BIVIJI M.D.

Specialist

1310 W STEWART DR, SUITE 510
ORANGE, CA 92868

Orange County (714) 538-8549

KEITH MITCHELL WEINER M.D.

Pediatrics (Pediatric Cardiology)

1310 W STEWART DR, SUITE 407
ORANGE, CA 92868

Orange County (714) 538-8887

MS. SARAH ANNE BRENDEN MARRIAGE AND FAMILY

Marriage & Family Therapist

1310 W STEWART DR
ORANGE, CA 92868

Orange County (714) 771-1404

MARTIN JERRY FELDMAN M.D.

Obstetrics & Gynecology

1310 W STEWART DR, SUITE 606
ORANGE, CA 92868

Orange County (714) 997-9494

JOHN ANTHONY SCHLECHTER D.O.

Orthopaedic Surgery (Pediatric Orthopaedic Surgery)

1310 W STEWART DR, SUITE 508
ORANGE, CA 92868

Orange County (714) 633-2111

PLASTIC SURGERY ASSOCIATES OF ORANGE COUNTY

Clinic/Center (Ambulatory Surgical)

1310 W STEWART DR, STE. 610
ORANGE, CA 92868

Orange County (714) 997-4300

MR. DENNIS MOORE CAMERON MFT

Marriage & Family Therapist

1310 W STEWART DR, SUITE 301
ORANGE, CA 92868

Orange County (949) 497-1618

GUICHET & GUICHET, DDS, INC.

Dentist (Prosthodontics)

1310 W STEWART DR, SUITE 202
ORANGE, CA 92868

Orange County (714) 771-7555

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 Fowler's NPI number?

The NPI number for Aaron Fowler is 1346582053. It was assigned to this individual provider in the NPPES registry on March 20, 2013.

Where is Aaron Fowler located?

Aaron Fowler practices at 1310 W Stewart Dr Ste 503, Orange, CA 92868. The listed phone number is (714) 997-2224.

What is Aaron Fowler's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Aaron Fowler enrolled in Medicare?

Yes. Aaron Fowler 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 Aaron Fowler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Fowler reassigns Medicare benefits to 3 organizations: Orange County Thoracic And Cardiovascular Surgeons A Med Corp (Orange, CA), Scl Health Medical Group - Billings LLC (Absarokee, MT) and Providence Health & Services Washington (Centralia, WA). 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 Aaron Fowler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Fowler accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Aaron Fowler 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.

Is Aaron Fowler affiliated with any hospitals?

According to CMS data, Aaron Fowler is affiliated with St Vincent Healthcare and Providence St Peter Hospital.

When was this NPI record last updated?

The NPPES record for Aaron Fowler was last updated on August 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.