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JOHN V O'HARA MD
NPI 1811056559
Anesthesiology - Pain Medicine in Elgin, IL

Active since December 08, 2006PECOS Enrolled
810 S MCLEAN BLVD, ELGIN, IL 60123(847) 632-9919 Get Directions Write a Review

NPPES record last updated: February 27, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 27, 2020, Feb 28, 2016 (2 updates tracked since 2016).

About John V O'hara Md NPPES

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

JOHN V O'HARA MD (NPI 1811056559) is an individual pain medicine provider in Elgin, Illinois, licensed in Illinois (036070333) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811056559
Entity TypeIndividualMale
Primary Taxonomy207LP2900X
Provider Legal NameJOHN V O'HARACredential: MD
Location Address810 S MCLEAN BLVDElgin, IL 60123-6703
Mailing Address415 W Golf Rd, Ste 3Arlington Heights, IL 60005-3923 · (630) 221-8000 · Fax (844) 273-7876
Phone(847) 632-9919
Sole ProprietorYes
Enumeration DateDecember 8, 2006
Last NPPES UpdateFebruary 27, 20202 updates tracked since enumeration
✔ NPI 1811056559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in IL · 036070333
Definition
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
810 S MCLEAN BLVD, Elgin, IL 60123
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Other Identifiers 1

Medicaid036070333IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John V O'hara Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show John O'hara reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Naperville Rehab And Medical Clinic PC
17 mi
Pain Medicine
1750 N WASHINGTON ST STE 112C
Naperville, IL 60563
  • Reassigned Medicare billing, Illinois enrollment
  • 5 clinicians in this Medicare group
NPI 1053806406 (630) 961-1888

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MICHAEL JAMES HARTLETT D.C.
Chiropractor
810 S MCLEAN BLVD
ELGIN, IL 60123
Kane County (847) 697-3472
ILLINOIS SPINE AND DISC INSTITUTE LTD
Physical Medicine & Rehabilitation
810 S MCLEAN BLVD
ELGIN, IL 60123
Kane County (847) 697-3472
INTEGRATED PAIN MANAGEMENT SC
Pain Medicine (Pain Medicine)
810 S MCLEAN BLVD
ELGIN, IL 60123
Kane County (630) 629-6298

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 John O'hara's NPI number?

The NPI number for John O'hara is 1811056559. It was assigned to this individual provider in the NPPES registry on December 8, 2006.

Where is John O'hara located?

John O'hara practices at 810 S Mclean Blvd, Elgin, IL 60123. The listed phone number is (847) 632-9919.

What is John O'hara's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is John O'hara enrolled in Medicare?

Yes. John O'hara is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for John O'hara's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John O'hara reassigns Medicare benefits to Naperville Rehab And Medical Clinic PC (Naperville, IL). The 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 John O'hara's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for John O'hara was last updated on February 27, 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.