OAKTON MEDICAL ASSOCIATES INC
NPI 1104015890
Internal Medicine in Hanover Park, IL

Q: What is Oakton Medical Associates Inc's NPI number?

The NPI number for Oakton Medical Associates Inc is 1104015890. It was assigned to this organization in the NPPES registry on October 17, 2007.

Q: What is Oakton Medical Associates Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since October 17, 2007CLIA 14D0966118 · Microscopy

1300 GREENBROOK BLVD STE 204, HANOVER PARK, IL 60133(630) 830-8100(630) 830-8081 Get Directions Write a Review

NPPES record last updated: March 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Oakton Medical Associates Inc NPPES

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

OAKTON MEDICAL ASSOCIATES INC (NPI 1104015890) is a healthcare organization registered as an internal medicine in Hanover Park, Illinois and active in the NPI registry since October 2007. The organization holds a CLIA Microscopy certificate valid through October 6, 2027, maintains a secondary practice location in Des Plaines, and lists Paresh A Patel, Authorized Official, as its authorized official.

NPPES Registry Identity

NPI1104015890

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameOAKTON MEDICAL ASSOCIATES INC

Location Address1300 GREENBROOK BLVD STE 204Hanover Park, IL 60133-5456

Mailing Address1300 Greenbrook Blvd Ste 204Hanover Park, IL 60133-5456 · (630) 830-8100 · Fax (630) 830-8081

Phone(630) 830-8100

Fax(630) 830-8081

Organization SubpartNo

Authorized OfficialParesh A PatelAuthorized Official · (630) 953-5100

Enumeration DateOctober 17, 2007

Last NPPES UpdateMarch 10, 2026

NPPES CertifiedMarch 10, 2026

✔ NPI 1104015890 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IL · 036090908

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedFamily MedicineTaxonomy 207Q00000X · License 036116583 (IL)

1300 GREENBROOK BLVD STE 204, Hanover Park, IL 60133

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Secondary Practice Location 1

Location 11400 E Golf Rd Ste 117Des Plaines, IL 60016-1252 · Phone (847) 635-5300 · Fax (847) 813-0106

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Oakton Medical Associates Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Oakton Medical Associates Inc, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (2)

Paresh Patel, M.D.

Internal Medicine

NPI 1780668244

1635 OAKTON PL
Des Plaines, IL 60018

(847) 635-5300

✔ PECOS✔ Accepts Medicare13 mi

Prili Gandhi, MD

Internal Medicine

NPI 1881868669

14688 EVERTON AVE HE HUGO CLINIC
Hugo, MN 55038

(651) 326-7701

✔ PECOS✔ Accepts Medicare329 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 14D0966118

Oakton Medical Plaza · Hanover Park, IL

Active · expires Oct 6, 2027

CLIA Number14D0966118

Laboratory TypePhysician Office

Certificate Effective DateOctober 7, 2025

Certificate Expiration DateOctober 6, 2027

Laboratory DirectorParesh A. Patel

Laboratory Phone(630) 830-8100

Laboratory LocationOakton Medical Plaza1300 Greenbrook Blvd, Suite 204, Hanover Park, IL 60133

CLIA data matches this NPI record on: Address Phone

This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Oakton Medical Associates Inc's NPI number?

The NPI number for Oakton Medical Associates Inc is 1104015890. It was assigned to this organization in the NPPES registry on October 17, 2007.

Where is Oakton Medical Associates Inc located?

Oakton Medical Associates Inc is located at 1300 Greenbrook Blvd Ste 204, Hanover Park, IL 60133. The listed phone number is (630) 830-8100.

What is Oakton Medical Associates Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Oakton Medical Associates Inc enrolled in Medicare?

Yes. Oakton Medical Associates Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oakton Medical Associates Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Oakton Medical Associates Inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Oakton Medical Associates Inc hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 14D0966118) is associated with this NPI, valid through October 6, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Oakton Medical Associates Inc was last updated on March 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.