DR. HYONG S CHOI MD
NPI 1194950998
Internal Medicine in Phoenix, AZ
About Dr. Hyong S Choi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HYONG S CHOI MD (NPI 1194950998) is an individual internal medicine provider in Phoenix, Arizona, licensed in Arizona (41995) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Hyong S Choi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Hyong Choi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenix, AZ 85020
- Reassigned Medicare billing, Arizona enrollment
- 124 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 6
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
PHOENIX, AZ 85020
PHOENIX, AZ 85020
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 Hyong Choi's NPI number?
The NPI number for Hyong Choi is 1194950998. It was assigned to this individual provider in the NPPES registry on May 21, 2009.
Where is Hyong Choi located?
Hyong Choi practices at 9225 N 3rd St Ste 300, Phoenix, AZ 85020. The listed phone number is (602) 445-0751.
What is Hyong Choi's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Hyong Choi enrolled in Medicare?
Yes. Hyong Choi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Hyong Choi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hyong Choi reassigns Medicare benefits to Affiliated Hospitalists, Plc (Phoenix, AZ). The 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 Hyong Choi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hyong Choi accept?
Health plans from Cigna HealthCare of Arizona, Inc and Oscar Health Plan, Inc. list Hyong Choi 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 Hyong Choi was last updated on March 16, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Hyong S Choi, MD · NPI 1194950998
Internal Medicine physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since May 21, 2009.
## Identity
- **NPI:** 1194950998 (Entity type: Individual)
- **Enumerated:** May 21, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 41995 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 9225 N 3RD ST, STE 300, Phoenix, AZ 85020-2466
- **Phone:** (602) 445-0751 · **Fax:** (602) 424-8128
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Affiliated Hospitalists, Plc (NPI 1265546261, Phoenix, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** March 16, 2016
- **Other identifiers:** Medicare PIN Z143774 (AZ)
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Source: [NPI Profile](https://npiprofile.com/npi/1194950998) · Data from the CMS NPPES public registry.