TIMOTHY P OCONNOR M.D.
NPI 1710974597
Transplant Surgery in Peoria, IL

Q: What is Timothy Oconnor's NPI number?

The NPI number for Timothy Oconnor is 1710974597. It was assigned to this individual provider in the NPPES registry on October 5, 2005.

Q: What is Timothy Oconnor's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Timothy Oconnor was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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 October 05, 2005PECOS EnrolledAccepts Medicare Assignment

420 NE GLEN OAK AVE STE 401, PEORIA, IL 61603(309) 676-8123(309) 676-8455 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 28, 2026, Nov 15, 2021, Jul 6, 2021 and 2 more (5 updates tracked since 2017).

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About Timothy P Oconnor M.d. NPPES

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

TIMOTHY P OCONNOR M.D. (NPI 1710974597) is an individual transplant surgery provider in Peoria, Illinois, licensed in Illinois (036090699) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with St Mary Medical Center, and maintains a secondary practice location in Morton.

NPPES Registry Identity

NPI1710974597

Entity TypeIndividualMale

Primary Taxonomy204F00000X

Provider Legal NameTIMOTHY P OCONNORCredential: M.D.

Location Address420 NE GLEN OAK AVE STE 401Peoria, IL 61603

Mailing Address420 Ne Glen Oak Ave Ste 401Peoria, IL 61603-3112 · (309) 676-8123 · Fax (309) 676-8455

Phone(309) 676-8123

Fax(309) 676-8455

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 1986

Enumeration DateOctober 5, 2005

Last NPPES UpdateJuly 28, 20265 updates tracked since enumeration

NPPES CertifiedJuly 28, 2026

✔ NPI 1710974597 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyTransplant SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code204F00000X

License✔ Licensed in IL · 036090699

Definition

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

Also ListedSurgery · Vascular SurgeryTaxonomy 2086S0129X · License 036090699 (IL)

420 NE GLEN OAK AVE STE 401, Peoria, IL 61603

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Secondary Practice Location 1

Location 1430 Maxine DrMorton, IL 61550-2495 · Phone (309) 266-7600 · Fax (309) 266-7680

Other Identifiers 1

Medicaid036090699IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Insurance Company.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

Timothy P Oconnor 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 ID4688758055

PECOS Enrollment IDI20080222000602

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 Timothy Oconnor reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Renalcare Associates, S.C.

Same address

Nephrology

420 NE GLEN OAK AVE STE 401
Peoria, IL 61603

Reassigned Medicare billing, Illinois enrollment
52 clinicians in this Medicare group

NPI 1649300377 (309) 676-8123

Advocate Health And Hospitals Corp.

17 mi

Medicare Defined Swing Bed Unit

101 S MAJOR ST
Eureka, IL 61530

Reassigned Medicare billing, Illinois enrollment
4,870 clinicians in this Medicare group

NPI 1295066983 (309) 467-2371

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 22

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.

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.

87 services87 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

78 services23 patients

Complete ultrasound of artery and vein blood flow pre-op assessment on both sides of body for hemodialysis access 93985

This procedure involves using ultrasound technology to examine the blood flow in your arteries and veins on both sides of your body. It's crucial for preparing for hemodialysis access, ensuring safe and effective treatment.

69 services69 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.

66 services60 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

45 services26 patients

Relocation of arm vein with connection to arm artery for hemodialysis 36821

This procedure involves moving a vein in your arm and connecting it to an artery. This creates a larger, stronger vein that can be used for hemodialysis, a treatment for kidney disease. It helps clean your blood when your kidneys can't.

38 services37 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

34 services32 patients

Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist 36902

This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.

33 services31 patients

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.

30 services27 patients

Creation of artery-vein connection using tube graft for hemodialysis 36830

This procedure involves connecting an artery to a vein using a tube graft. It's typically done for hemodialysis, a treatment for kidney disease. The connection allows blood to flow from the artery into the graft, then into the vein, and back to your body.

26 services24 patients

Removal of tunneled central venous tube 36589

A tunneled central venous tube removal is a procedure to take out a long, thin tube that was previously placed in a large vein in your body. This tube helps deliver medication or nutrition. The removal is usually quick and done under local anesthesia.

24 services23 patients

Revision of hemodialysis graft 36832

A revision of a hemodialysis graft is a procedure to fix issues with the graft used for dialysis. This can involve clearing blockages or improving blood flow. It helps ensure the graft continues to work effectively for your dialysis treatments.

23 services23 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

19 services18 patients

Insertion of needle and/or tube into hemodialysis circuit with review by radiologist 36901

This procedure involves inserting a needle or tube into your hemodialysis circuit, which is part of the system that cleans your blood when your kidneys can't. A radiologist, a doctor specialized in imaging techniques, will review the process to ensure everything is correct.

18 services18 patients

Removal of abdominal cavity tube 49422

The removal of an abdominal cavity tube is a medical procedure that involves taking out a tube previously placed in your abdomen. This tube may have been used to drain fluid, air, or pus from your abdominal area. The process is safe, typically quick, and done by a healthcare professional.

17 services17 patients

Removal of infected graft of arm or leg 35903

This procedure involves the removal of a previously placed graft in your arm or leg that has become infected. The infected graft is carefully removed to prevent further complications. After removal, the area is cleaned to eliminate any remaining infection.

16 services15 patients

Tying or banding of surgically created artery-vein connection 37607

This procedure involves placing a band or tie around an artery-vein connection that was surgically created. The banding helps regulate blood flow, preventing complications like high blood pressure in the connection. It's a routine, safe procedure performed by healthcare professionals.

16 services14 patients

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.

16 services12 patients

Transplantation of donor kidney 50360

Transplantation of a donor kidney involves replacing a non-functioning kidney with a healthy one from a donor. This procedure can significantly improve the quality of life for those with serious kidney disease. The new kidney can perform the essential task of filtering blood and removing waste.

15 services15 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

15 services15 patients

Fluoroscopic guidance for insertion or removal of central vein access device 77001

Fluoroscopic guidance for central vein access device insertion or removal is a procedure where a special X-ray, called a fluoroscope, is used to help accurately place or remove a device in a central vein. This device aids in delivering medications or collecting blood samples.

14 services14 patients

Preparation of donor kidney for transplantation 50323

Preparation of a kidney for transplantation involves careful evaluation of the donor organ. It includes checking for diseases, ensuring compatibility, and preserving the organ in a cold solution until transplantation. This process ensures the best outcome for the recipient.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

St Mary Medical Center

Acute Care Hospitals · Galesburg, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140064

Location3333 North SeminaryGalesburg, IL 61401 · Knox County

Emergency services Birthing friendly

Saint Francis Medical Center

Acute Care Hospitals · Peoria, IL

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140067

Location530 NE Glen Oak AvePeoria, IL 61637 · Peoria County

Emergency services Birthing friendly

Osf Saint Elizabeth Mdl Ctr

Acute Care Hospitals · Ottawa, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140110

Location1100 E Norris DriveOttawa, IL 61350 · La Salle County

Emergency services Birthing friendly

Saint James Hospital

Acute Care Hospitals · Pontiac, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140161

Location2500 West Reynolds StreetPontiac, IL 61764 · Livingston County

Birthing friendly

St Joseph Medical Center

Acute Care Hospitals · Bloomington, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140162

Location2200 E WashingtonBloomington, IL 61701 · Mc Lean County

Emergency services Birthing friendly

Referred Medical Equipment & Supplies CMS DME claims 7

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

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

13 suppliers202 claims36,038 services$0.32 avg. paid by Medicare

Prednisone, immediate release or delayed release, oral, 1 mg J7512

Treatment-Treatment - Miscellaneous · category RX029N

8 suppliers164 claims36,635 services$0.01 avg. paid by Medicare

Mycophenolate mofetil, oral, 250 mg J7517

Treatment-Treatment - Miscellaneous · category RX029N

1 supplier20 claims4,054 services$0.19 avg. paid by Medicare

Mycophenolic acid, oral, 180 mg J7518

Treatment-Treatment - Miscellaneous · category RX029N

12 suppliers159 claims36,376 services$0.96 avg. paid by Medicare

Pharmacy supply fee for initial immunosuppressive drug(s), first month following transplant Q0510

Treatment-Chemotherapy · category RH012N

2 suppliers29 claims29 services$39.45 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

19 suppliers206 claims206 services$18.05 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.

COURTNEY HARLEY ANP

Nurse Practitioner