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HAROLD JAIMES, M.D., S.C.
NPI 1487841904
Internal Medicine in Downers Grove, IL

Active since September 28, 2007CLIA 14D0932177 · Waiver
3800 HIGHLAND AVE, SUITE 111, DOWNERS GROVE, IL 60515(630) 719-4444 Get Directions Write a Review

NPPES record last updated: September 28, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Harold Jaimes, M.d., S.c. NPPES

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

HAROLD JAIMES, M.D., S.C. (NPI 1487841904) is a healthcare organization registered as an internal medicine in Downers Grove, Illinois and active in the NPI registry since September 2007. The organization holds a CLIA Waiver certificate valid through August 13, 2027 and lists Harold Jaimes, President, as its authorized official.

NPPES Registry Identity

NPI1487841904
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHAROLD JAIMES, M.D., S.C.
Location Address3800 HIGHLAND AVE, SUITE 111Downers Grove, IL 60515-1557
Mailing Address3153 W Fullerton AveChicago, IL 60647-2809 · (773) 395-4600
Phone(630) 719-4444
Organization SubpartYesParent: Harold Jaimes, M.d.,s.c.
Authorized OfficialHarold JaimesPresident · (773) 395-4600
Enumeration DateSeptember 28, 2007
✔ NPI 1487841904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
3800 HIGHLAND AVE, Downers Grove, IL 60515
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Other Identifiers 1

Other1605620IL · Blue Shield

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Harold Jaimes, M.d., S.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Harold Jaimes, M.D., S.C., which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (3)

Jose Rivera Guerrero, M.D.
Internal Medicine
NPI 1316190028
16003 EXECUTIVE DR
Crest Hill, IL 60403
(815) 280-5796
✔ PECOS✔ Accepts Medicare16 mi
Harold Jaimes, M.D.
Internal Medicine
NPI 1770526279
3153 W FULLERTON AVE
Chicago, IL 60647
(773) 395-4600
✔ PECOS✔ Accepts Medicare17 mi
Manuel Montes De Oca, MD
Internal Medicine
NPI 1548732738
9901 WESTVIEW DR APT 327
Coral Springs, FL 33076
(718) 590-1800
✔ PECOS✔ Accepts Medicare1,157 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 of Waiver 14D0932177

Harold Jaimes MD PC · Downers Grove, IL
Active · expires Aug 13, 2027
CLIA Number14D0932177
Laboratory TypePhysician Office
Certificate Effective DateAugust 14, 2025
Certificate Expiration DateAugust 13, 2027
Laboratory DirectorHarold Jaimes MD
Laboratory Phone(630) 932-4444
Laboratory LocationHarold Jaimes MD PC3800 Highland Ave Suite 111, Downers Grove, IL 60515
CLIA data matches this NPI record on: Address
This certificate is issued to a laboratory to perform only 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 Harold Jaimes, M.D., S.C.'s NPI number?

The NPI number for Harold Jaimes, M.D., S.C. is 1487841904. It was assigned to this organization in the NPPES registry on September 28, 2007.

Where is Harold Jaimes, M.D., S.C. located?

Harold Jaimes, M.D., S.C. is located at 3800 Highland Ave Suite 111, Downers Grove, IL 60515. The listed phone number is (630) 719-4444.

What is Harold Jaimes, M.D., S.C.'s specialty?

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

Is Harold Jaimes, M.D., S.C. enrolled in Medicare?

Yes. Harold Jaimes, M.D., S.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Harold Jaimes, M.D., S.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Internal Medicine, reassign their Medicare billing to Harold Jaimes, M.D., S.C.. 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 Harold Jaimes, M.D., S.C. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 14D0932177) is associated with this NPI, valid through August 13, 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 Harold Jaimes, M.D., S.C. was last updated on September 28, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.