ALYSSA HYUNNA YOON M.D.
NPI 1528325057
Hospitalist in Houston, TX
About Alyssa Hyunna Yoon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA HYUNNA YOON M.D. (NPI 1528325057) is an individual hospitalist provider in Houston, Texas, licensed in Texas (Q2871) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Chi St Luke's Health Baylor College Of Medicine Me, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Alyssa Hyunna Yoon M.d. 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 Alyssa Yoon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Houston, TX 77030
- Reassigned Medicare billing, Texas enrollment
- 2,554 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 3
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Chi St Luke's Health Baylor College Of Medicine Me
Acute Care Hospitals · Houston, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 77030 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 3
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.
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 Alyssa Yoon's NPI number?
The NPI number for Alyssa Yoon is 1528325057. It was assigned to this individual provider in the NPPES registry on April 22, 2012.
Where is Alyssa Yoon located?
Alyssa Yoon practices at 6720 Bertner Ave, Houston, TX 77030. The listed phone number is (713) 798-2222.
What is Alyssa Yoon's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Alyssa Yoon enrolled in Medicare?
Yes. Alyssa Yoon 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 Alyssa Yoon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Yoon reassigns Medicare benefits to Baylor College Of Medicine (Houston, TX). 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 Alyssa Yoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alyssa Yoon accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list Alyssa Yoon 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.
Is Alyssa Yoon affiliated with any hospitals?
According to CMS data, Alyssa Yoon is affiliated with Chi St Luke's Health Baylor College Of Medicine Me.
When was this NPI record last updated?
The NPPES record for Alyssa Yoon was last updated on September 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Alyssa Hyunna Yoon, M.D. · NPI 1528325057
Hospitalist physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since April 22, 2012.
## Identity
- **NPI:** 1528325057 (Entity type: Individual)
- **Enumerated:** April 22, 2012
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** Q2871 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 6720 BERTNER AVE, Houston, TX 77030-2604
- **Phone:** (713) 798-2222
## 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:** Baylor College Of Medicine (NPI 1881026664, Houston, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Florida College Of Medicine, class of 2012
## Record status
- **NPPES last updated:** September 27, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1528325057) · Data from the CMS NPPES public registry.