TUCSON ENDOCRINE ASSOCIATES PLLC
NPI 1083766828
Internal Medicine - Endocrinology, Diabetes & Metabolism in Tucson, AZ

Active since January 18, 2007
5910 N LA CHOLLA BLVD, TUCSON, AZ 85741(520) 297-0404(520) 297-0436 Get Directions Write a Review

NPPES record last updated: October 22, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Tucson Endocrine Associates Pllc NPPES

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

TUCSON ENDOCRINE ASSOCIATES PLLC (NPI 1083766828) is a healthcare organization registered as an endocrinology, diabetes & metabolism in Tucson, Arizona and active in the NPI registry since January 2007. The organization maintains a secondary practice location in Tucson and lists Alexander D Zwart, Partner, as its authorized official.

NPPES Registry Identity

NPI1083766828
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameTUCSON ENDOCRINE ASSOCIATES PLLC
Location Address5910 N LA CHOLLA BLVDTucson, AZ 85741-3535
Mailing AddressPo Box 43160Tucson, AZ 85733-3160 · (520) 297-0404 · Fax (520) 297-0436
Fax(520) 297-0436
Organization SubpartNo
Authorized OfficialAlexander D ZwartPartner · (520) 297-0404
Enumeration DateJanuary 18, 2007
Last NPPES UpdateOctober 22, 2021
NPPES CertifiedOctober 22, 2021
✔ NPI 1083766828 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
5910 N LA CHOLLA BLVD, Tucson, AZ 85741

Secondary Practice Location 1

Location 11773 W Saint Marys Rd Ste 202Tucson, AZ 85745-2654 · Phone (520) 297-0404

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Tucson Endocrine Associates Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Tucson Endocrine Associates PLLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 5 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 2

Nurse Practitioner6
Endocrinology4

Clinicians, nearest first (10)

Endocrinology
NPI 1164457339
5910 N LA CHOLLA BLVD
Tucson, AZ 85741
(520) 297-0404
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1689196107
5910 N LA CHOLLA BLVD
Tucson, AZ 85741
(520) 297-0404
✔ PECOSSame address
Endocrinology
NPI 1225018856
5910 N LA CHOLLA BLVD
Tucson, AZ 85741
(520) 297-0404
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1700495306
5910 N LA CHOLLA BLVD
Tucson, AZ 85741
(520) 297-0404
✔ PECOS0.1 mi
Endocrinology
NPI 1639559032
6130 N LA CHOLLA BLVD SUITE 240
Tucson, AZ 85704
(520) 326-1457
✔ PECOS✔ Accepts Medicare0.3 mi
Nurse Practitioner
NPI 1912780123
7401 E SPEEDWAY BLVD APT 12205
Tucson, AZ 85710
(520) 449-1604
✔ PECOS12 mi
Nurse Practitioner
NPI 1043601040
70 N HARRISON RD
Tucson, AZ 85748
(520) 324-4403
✔ PECOS14 mi
Nurse Practitioner
NPI 1730671140
16680 S AVENIDA TRES
Sahuarita, AZ 85629
(520) 449-7896
✔ PECOS25 mi
Nurse Practitioner
NPI 1326585845
1863 EAST FLORENCE BLVD
Casa Grande, AZ 85122
(520) 836-3446
✔ PECOS✔ Accepts Medicare56 mi
Endocrinology
NPI 1427274315
4200 E 9TH AVE (UNIVERSITY OF COLORADO SCHOOL OF MEDICINE
Denver, CO 80262
(303) 315-7424
✔ PECOS614 mi

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 Tucson Endocrine Associates PLLC's NPI number?

The NPI number for Tucson Endocrine Associates PLLC is 1083766828. It was assigned to this organization in the NPPES registry on January 18, 2007.

Where is Tucson Endocrine Associates PLLC located?

Tucson Endocrine Associates PLLC is located at 5910 N La Cholla Blvd, Tucson, AZ 85741. The listed phone number is (520) 297-0404.

What is Tucson Endocrine Associates PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Tucson Endocrine Associates PLLC enrolled in Medicare?

Yes. Tucson Endocrine Associates PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Tucson Endocrine Associates PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 2 Medicare specialties reassign their Medicare billing to Tucson Endocrine Associates PLLC. 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. The largest specialties are Nurse Practitioner (6) and Endocrinology (4). Of these, 3 practice at this address and 5 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Tucson Endocrine Associates PLLC accept?

Health plans from Ambetter from Arizona Complete Health and Imperial Insurance Companies, Inc. list Tucson Endocrine Associates PLLC 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 Tucson Endocrine Associates PLLC was last updated on October 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.