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JAMES G. LIEBER, MD, PLC
NPI 1225175433
Internal Medicine in Chandler, AZ

Active since January 30, 2007
595 N DOBSON RD, SUITE D76, CHANDLER, AZ 85224(480) 821-0788(480) 821-0837 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James G. Lieber, Md, Plc NPPES

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

JAMES G. LIEBER, MD, PLC (NPI 1225175433) is a healthcare organization registered as an internal medicine in Chandler, Arizona and active in the NPI registry since January 2007. The organization lists James G Lieber, President, as its authorized official.

NPPES Registry Identity

NPI1225175433
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameJAMES G. LIEBER, MD, PLC
Location Address595 N DOBSON RD, SUITE D76Chandler, AZ 85224-4226
Mailing Address595 N. Dobson Rd, Suite D76Chandler, AZ 85224 · (480) 821-0788 · Fax (480) 821-0837
Phone(480) 821-0788
Fax(480) 821-0837
Organization SubpartNo
Authorized OfficialJames G LieberPresident · (480) 821-0788
Enumeration DateJanuary 30, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1225175433 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 24507
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.
595 N DOBSON RD, Chandler, AZ 85224
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Other Names 1

Doing Business AsJames G. Lieber, Md, Plc

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James G. Lieber, Md, Plc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to James G. Lieber, MD, Plc, which bills Medicare for the services this clinician delivers.

Clinician (1)

James Lieber, MD
Internal Medicine
NPI 1083690283
595 N DOBSON RD D 76
Chandler, AZ 85224
(480) 821-0788
✔ PECOS✔ Accepts MedicareSame address

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

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 James G. Lieber, MD, Plc's NPI number?

The NPI number for James G. Lieber, MD, Plc is 1225175433. It was assigned to this organization in the NPPES registry on January 30, 2007.

Where is James G. Lieber, MD, Plc located?

James G. Lieber, MD, Plc is located at 595 N Dobson Rd Suite D76, Chandler, AZ 85224. The listed phone number is (480) 821-0788.

What is James G. Lieber, MD, Plc's specialty?

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

Is James G. Lieber, MD, Plc enrolled in Medicare?

Yes. James G. Lieber, MD, Plc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through James G. Lieber, MD, Plc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to James G. Lieber, MD, Plc. 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.

What insurance does James G. Lieber, MD, Plc accept?

Health plans from Ambetter Health and Ambetter from Arizona Complete Health list James G. Lieber, MD, Plc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for James G. Lieber, MD, Plc was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.