DR. DOUGLAS AARON REX D.O.,
NPI 1912185661
Surgery in Marion, IN

Active since February 05, 2008PECOS EnrolledAccepts Medicare Assignment
83.71/100
CMS Quality Rating
330 N WABASH AVE, STE G370, MARION, IN 46952(765) 660-7500(765) 662-3411 Get Directions Write a Review

NPPES record last updated: October 20, 2020. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Oct 20, 2020, May 20, 2016 (2 updates tracked since 2016).

About Dr. Douglas Aaron Rex D.o., NPPES

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

DR. DOUGLAS AARON REX D.O., (NPI 1912185661) is an individual surgery provider in Marion, Indiana, licensed in Indiana (02003334B) and active in the NPI registry since February 2008. He is enrolled in Medicare PECOS, is affiliated with Marion General Hospital, and is a graduate of University Of Pikeville, Kentucky College Of Osteopathic Med (2003).

NPPES Registry Identity

NPI1912185661
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. DOUGLAS AARON REXCredential: D.O.,
Location Address330 N WABASH AVE, STE G370Marion, IN 46952-2678
Mailing Address330 N Wabash, Ste 320Marion, IN 46952-2600 · (765) 660-7600 · Fax (765) 651-7313
Fax(765) 662-3411
Sole ProprietorNo
Medical School CMSUniversity Of Pikeville, Kentucky College Of Osteopathic MedGraduated 2003
Enumeration DateFebruary 5, 2008
Last NPPES UpdateOctober 20, 20202 updates tracked since enumeration
NPPES CertifiedOctober 20, 2020
NPI 1912185661 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License Licensed in IN · 02003334B
Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

330 N WABASH AVE, Marion, IN 46952

Other Identifiers 2

Other000000611209IN · Anthem
Medicaid200916470IN

Accepted Insurance

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. Douglas Aaron Rex D.o., 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 ID7012083876
PECOS Enrollment IDI20080903000248
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 11

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
61 services60 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
56 services43 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
52 services52 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
46 services42 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
34 services28 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
30 services30 patients

Hospital Affiliations CMS Care Compare

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

Marion General Hospital

Acute Care Hospitals · Marion, IN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number150011
Location441 N Wabash AveMarion, IN 46952 · Grant County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46952 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
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
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.

83.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality69.94
Promoting Interoperability95
Improvement Activities40

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.

Pharmacist
330 N WABASH AVE
MARION, IN 46952
Psychologist (Clinical)
330 N WABASH AVE, SUITE 330
MARION, IN 46952
Surgery
330 N WABASH AVE, SUITE 440
MARION, IN 46952
Specialist
330 N WABASH AVE, SUITE 400
MARION, IN 46952
Specialist
330 N WABASH AVE, SUITE 210
MARION, IN 46952
Preventive Medicine (Occupational Medicine)
330 N WABASH AVE, SUITE 110
MARION, IN 46952
Physical Medicine & Rehabilitation
330 N WABASH AVE, SUITE 430
MARION, IN 46952
Audiologist
330 N WABASH AVE, SUITE 210
MARION, IN 46952

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 Douglas Rex's NPI number?

The NPI number for Douglas Rex is 1912185661. It was assigned to this individual provider in the NPPES registry on February 5, 2008.

Where is Douglas Rex located?

Douglas Rex practices at 330 N Wabash Ave Ste G370, Marion, IN 46952. The listed phone number is (765) 660-7500.

What is Douglas Rex's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Douglas Rex enrolled in Medicare?

Yes. Douglas Rex 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.

What insurance does Douglas Rex accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and CareSource list Douglas Rex 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 Douglas Rex affiliated with any hospitals?

According to CMS data, Douglas Rex is affiliated with Marion General Hospital.

When was this NPI record last updated?

The NPPES record for Douglas Rex was last updated on October 20, 2020. NPI Profile syncs with the weekly NPPES data releases published by CMS.