CHOI SERVICES PLLC
NPI 1013796747
Internal Medicine - Pulmonary Disease in Tucson, AZ
About Choi Services Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHOI SERVICES PLLC (NPI 1013796747) is a healthcare organization registered as a pulmonary disease in Tucson, Arizona and active in the NPI registry since September 2023. The organization lists Chang-kun C. Choi, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
Choi Services Pllc 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 Choi Services PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Choi Services PLLC's NPI number?
The NPI number for Choi Services PLLC is 1013796747. It was assigned to this organization in the NPPES registry on September 22, 2023.
Where is Choi Services PLLC located?
Choi Services PLLC is located at 2611 N Warren Ave, Tucson, AZ 85719. The listed phone number is (520) 795-9574.
What is Choi Services PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Choi Services PLLC enrolled in Medicare?
Yes. Choi Services PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Choi Services PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Pulmonary Disease) reassigns their Medicare billing to Choi Services 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Choi Services PLLC was last updated on September 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Choi Services Pllc · NPI 1013796747
Pulmonary Disease organization in Tucson, Arizona. Organization record, active in the CMS NPPES registry since September 22, 2023.
## Identity
- **NPI:** 1013796747 (Entity type: Organization)
- **Enumerated:** September 22, 2023
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **Organization subpart:** No
- **Authorized official:** Chang-Kun Choi, OWNER
## Practice location
- **Address:** 2611 N WARREN AVE, Tucson, AZ 85719-3160
- **Phone:** (520) 795-9574 · **Fax:** (520) 547-2382
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Pulmonary Disease) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 22, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1013796747) · Data from the CMS NPPES public registry.