SPECTRUM INTERNAL MEDICINE ASSOCIATES, INC. A PROFESSIONAL CORPORATION
NPI 1659580744
Internal Medicine in Irvine, CA
About Spectrum Internal Medicine Associates, Inc. A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SPECTRUM INTERNAL MEDICINE ASSOCIATES, INC. A PROFESSIONAL CORPORATION (NPI 1659580744) is a healthcare organization registered as an internal medicine in Irvine, California and active in the NPI registry since May 2007. The organization holds a CLIA Waiver certificate valid through July 26, 2027 and lists Julie Kuniyoshi, Md, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Spectrum Internal Medicine Associates, Inc. A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Spectrum Internal Medicine Associates, Inc. A Professional Corporation, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
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 05D1071569
Spectrum Internal Medicine Associates Inc · Irvine, CAFrequently 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 Spectrum Internal Medicine Associates, Inc. A Professional Corporation's NPI number?
The NPI number for Spectrum Internal Medicine Associates, Inc. A Professional Corporation is 1659580744. It was assigned to this organization in the NPPES registry on May 22, 2007.
Where is Spectrum Internal Medicine Associates, Inc. A Professional Corporation located?
Spectrum Internal Medicine Associates, Inc. A Professional Corporation is located at 4870 Barranca Pkwy Suite 250, Irvine, CA 92604. The listed phone number is (949) 272-3800.
What is Spectrum Internal Medicine Associates, Inc. A Professional Corporation's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Spectrum Internal Medicine Associates, Inc. A Professional Corporation enrolled in Medicare?
Yes. Spectrum Internal Medicine Associates, Inc. A Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Spectrum Internal Medicine Associates, Inc. A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Spectrum Internal Medicine Associates, Inc. A Professional Corporation. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Spectrum Internal Medicine Associates, Inc. A Professional Corporation hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D1071569) is associated with this NPI, valid through July 26, 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 Spectrum Internal Medicine Associates, Inc. A Professional Corporation was last updated on July 15, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Spectrum Internal Medicine Associates, Inc. A Professional Corporation · NPI 1659580744
Internal Medicine organization in Irvine, California. Organization record, active in the CMS NPPES registry since May 22, 2007.
## Identity
- **NPI:** 1659580744 (Entity type: Organization)
- **Enumerated:** May 22, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Julie Kuniyoshi, MD
## Practice location
- **Address:** 4870 BARRANCA PKWY, SUITE 250, Irvine, CA 92604-4709
- **Phone:** (949) 272-3800 · **Fax:** (949) 262-0089
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians (Internal Medicine) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 15, 2013
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1659580744) · Data from the CMS NPPES public registry.