DR. DAVID C DIIORIO D.C.
NPI 1770582769
Chiropractor - Sports Physician in Geneva, IL

Q: What is David Diiorio's NPI number?

The NPI number for David Diiorio is 1770582769. It was assigned to this individual provider in the NPPES registry on July 20, 2005.

Q: What is David Diiorio's specialty?

The primary specialty registered for this NPI is Chiropractor, specializing in Sports Physician, with taxonomy code 111NS0005X.

Q: When was this NPI record last updated?

The NPPES record for David Diiorio was last updated on May 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 July 20, 2005Accepts Medicare Assignment

423 HAMILTON ST, GENEVA, IL 60134(630) 232-6321(630) 232-9451 Get Directions Write a Review

NPPES record last updated: May 12, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: May 12, 2026, Mar 13, 2019 (2 updates tracked since 2019).

On this page

About Dr. David C Diiorio D.c. NPPES

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

DR. DAVID C DIIORIO D.C. (NPI 1770582769) is an individual sports physician in Geneva, Illinois, licensed in Illinois (038007203) and active in the NPI registry since July 2005. He is a graduate of National College Of Chiropractic (1992).

NPPES Registry Identity

NPI1770582769

Entity TypeIndividualMale

Primary Taxonomy111NS0005X

Provider Legal NameDR. DAVID C DIIORIOCredential: D.C.

Location Address423 HAMILTON STGeneva, IL 60134-2136

Mailing Address421 Hamilton StGeneva, IL 60134-2136 · (630) 232-6321 · Fax (630) 232-9451

Phone(630) 232-6321

Fax(630) 232-9451

Sole ProprietorNo

Medical School CMSNational College Of ChiropracticGraduated 1992

Enumeration DateJuly 20, 2005

Last NPPES UpdateMay 12, 20262 updates tracked since enumeration

NPPES CertifiedMay 12, 2026

✔ NPI 1770582769 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractor · Sports PhysicianChiropractic Providers

Taxonomy Code111NS0005X

License✔ Licensed in IL · 038007203

Definition

A sports chiropractor is uniquely trained to provide care and treatment of injuries or illness resulting from sports and physical fitness activities. Doctors of Chiropractic with the Diplomate American Chiropractic Board of Sports Physicians (DACBSP) or the Certified Chiropractic Sports Physician (CCSP), sport specialty certifications from the American Chiropractic Board of Sports Physicians, have advanced training in the assessment, management and rehabilitation of sports related injuries. Extremity care, rehabilitation and soft tissue procedures are common skills utilized by these doctors. The specialty training covers a broad spectrum from the pediatric athlete to professional and Olympic athletes, and everything in between, using a variety of techniques and modalities.

423 HAMILTON ST, Geneva, IL 60134

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Other Identifiers 1

Other0004522535IL · Blue Cross Blue Shield

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. David C Diiorio D.c. 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 ID5799707774

PECOS Enrollment IDI20060202000616

Medicare Billing Reassignment

Medicare enrollment records show David Diiorio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

David C Di Iorio PC

Same address

Sports Physician

421 HAMILTON ST.
Geneva, IL 60134

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

NPI 1376544353 (630) 232-6321

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 2

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.

Chiropractic manipulative treatment, 3-4 spinal regions 98941

Chiropractic manipulative treatment for 3-4 spinal regions involves a trained professional applying controlled force to specific areas of your spine. This can help alleviate pain, improve physical function, and support your body's natural healing process.

1,197 services150 patients

Chiropractic manipulative treatment, 1-2 spinal regions 98940

Chiropractic manipulative treatment focuses on adjusting your spine to improve your body's physical function. In this service, a chiropractor applies controlled force to 1-2 spinal regions. This helps to restore mobility and alleviate discomfort in those areas.

175 services44 patients

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 David Diiorio's NPI number?

The NPI number for David Diiorio is 1770582769. It was assigned to this individual provider in the NPPES registry on July 20, 2005.

Where is David Diiorio located?

David Diiorio practices at 423 Hamilton St, Geneva, IL 60134. The listed phone number is (630) 232-6321.

What is David Diiorio's specialty?

The primary specialty registered for this NPI is Chiropractor, specializing in Sports Physician, with taxonomy code 111NS0005X.

Is David Diiorio enrolled in Medicare?

Yes. David Diiorio 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 organization bills Medicare for David Diiorio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Diiorio reassigns Medicare benefits to David C Di Iorio PC (Geneva, 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 David Diiorio'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 David Diiorio was last updated on May 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.