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DR. JUSTIN D HARRIS M.D.
NPI 1063617934
Internal Medicine in Irvine, CA

Active since June 19, 2007PECOS Enrolled
11 TECHNOLOGY DR, IRVINE, CA 92618(949) 923-3200 Get Directions Write a Review

NPPES record last updated: December 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Justin D Harris M.d. NPPES

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

DR. JUSTIN D HARRIS M.D. (NPI 1063617934) is an individual internal medicine provider in Irvine, California, licensed in California (A123173) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1063617934
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JUSTIN D HARRISCredential: M.D.
Location Address11 TECHNOLOGY DRIrvine, CA 92618-2302
Mailing AddressPo Box 35380Las Vegas, NV 89133-5380
Phone(949) 923-3200
Sole ProprietorNo
Enumeration DateJune 19, 2007
Last NPPES UpdateDecember 16, 2025
NPPES CertifiedDecember 16, 2025
✔ NPI 1063617934 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A123173
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.
11 TECHNOLOGY DR, Irvine, CA 92618
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Justin D Harris M.d. 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 Reassignments

5

Medicare enrollment records show Justin Harris reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Saddleback Medical Group Inc
3.1 mi
Gastroenterology
24221 CALLE DE LA LOUISA, SUITE 400
Laguna Hills, CA 92653
  • Reassigned Medicare billing, California enrollment
  • 86 clinicians in this Medicare group
NPI 1386605822 (949) 465-8155
Healthcare Partners Affiliates Medical Group
7.8 mi
Addiction Medicine
14591 NEWPORT AVE
Tustin, CA 92780
  • Reassigned Medicare billing, California enrollment
  • 2,052 clinicians in this Medicare group
NPI 1891981502 (714) 442-4864
Centers For Family Medicine Gp
22 mi
Family Medicine
3460 KATELLA AVE
Los Alamitos, CA 90720
  • Reassigned Medicare billing, California enrollment
  • 228 clinicians in this Medicare group
NPI 1467598243 (562) 594-6599
Pinnacle Medical Group, Inc
36 mi
Family Medicine
8110 MANGO AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 149 clinicians in this Medicare group
NPI 1376876912 (909) 427-1303
Beaver Medical Group P C
42 mi
Family Medicine
2 WEST FERN AVENUE
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 635 clinicians in this Medicare group
NPI 1649503319 (909) 793-3311

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

DR. MARIA TERESA CORPIN AGNER MD
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (855) 206-6764
DR. SHAHNOOS MAHDAVI M.D.
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (855) 206-6764
DR. SUBRATO GHOSH MD
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (855) 206-6764
DR. PARAG SHARMA M.D.
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (855) 206-6764
DR. HAI XUAN LE M.D.
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (949) 923-3200
DR. MOLOOD HADI DO
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (949) 923-3200
DR. ALI AHOUI MD
Hospitalist
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (855) 206-6764
DR. TUNG HOANG NGO DO
Internal Medicine
11 TECHNOLOGY DR
IRVINE, CA 92618
Orange County (855) 206-6764

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 Justin Harris's NPI number?

The NPI number for Justin Harris is 1063617934. It was assigned to this individual provider in the NPPES registry on June 19, 2007.

Where is Justin Harris located?

Justin Harris practices at 11 Technology Dr, Irvine, CA 92618. The listed phone number is (949) 923-3200.

What is Justin Harris's specialty?

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

Is Justin Harris enrolled in Medicare?

Yes. Justin Harris is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Justin Harris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Harris reassigns Medicare benefits to 5 organizations: Saddleback Medical Group Inc (Laguna Hills, CA), Healthcare Partners Affiliates Medical Group (Tustin, CA), Centers For Family Medicine Gp (Los Alamitos, CA), Pinnacle Medical Group, Inc (Fontana, CA) and Beaver Medical Group P C (Redlands, CA). Each 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 Justin Harris'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 Justin Harris was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.