DR. ESTHER J HWANG M.D.
NPI 1477998607
Radiology - Diagnostic Radiology in Tucson, AZ
About Dr. Esther J Hwang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ESTHER J HWANG M.D. (NPI 1477998607) is an individual diagnostic radiology provider in Tucson, Arizona, licensed in Arizona (73793) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Hospital System, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses 2
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. Esther J Hwang 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 Reassignments
9Medicare enrollment records show Esther Hwang reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Abilene, TX 79606
- Reassigned Medicare billing, Texas enrollment
- 83 clinicians in this Medicare group
Shenandoah, TX 77380
- Reassigned Medicare billing, Texas enrollment
- 1,278 clinicians in this Medicare group
Houston, TX 77024
- Reassigned Medicare billing, Texas enrollment
- 140 clinicians in this Medicare group
Lufkin, TX 75904
- Reassigned Medicare billing, Texas enrollment
- 151 clinicians in this Medicare group
Columbus, OH 43214
- Reassigned Medicare billing, Ohio and Texas enrollments
- 17 clinicians in this Medicare group
Columbus, OH 43215
- Reassigned Medicare billing, Texas enrollment
- 41 clinicians in this Medicare group
Phoenixville, PA 19460
- Reassigned Medicare billing, Pennsylvania and New Jersey enrollments
- Also billed through NPI 1548215536 (New Jersey)
- 226 clinicians in this Medicare group
Bala Cynwyd, PA 19004
- Reassigned Medicare billing, Pennsylvania and Texas enrollments
- Medicare enrollment name: Methodist Associates In Healthcare, Inc
- Also billed through NPI 1053355131 (Texas)
- 600 clinicians in this Medicare group
Rocky Hill, CT 06067
- Reassigned Medicare billing, Connecticut enrollment
- 371 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 17
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hermann Hospital System
Acute Care Hospitals · Houston, TXHouston Methodist Hospital
Acute Care Hospitals · Houston, TXMemorial Hermann Northeast Hospital
Acute Care Hospitals · Humble, TXMemorial Hermann Sugar Land Hospital
Acute Care Hospitals · Sugar Land, TXHouston Methodist The Woodlands Hospital
Acute Care Hospitals · The Woodlands, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85711 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.
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 Esther Hwang's NPI number?
The NPI number for Esther Hwang is 1477998607. It was assigned to this individual provider in the NPPES registry on May 1, 2013.
Where is Esther Hwang located?
Esther Hwang practices at 677 N Wilmot Rd, Tucson, AZ 85711. The listed phone number is (520) 795-2889.
What is Esther Hwang's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Esther Hwang enrolled in Medicare?
Yes. Esther Hwang 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 organizations bill Medicare for Esther Hwang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Esther Hwang reassigns Medicare benefits to 9 organizations: Privia Medical Group West Texas, PLLC (Abilene, TX), Singleton Associates PA (Shenandoah, TX), Synergy Radiology Associates PLLC (Houston, TX), Angelina Diagnostic Radiology Associates (Lufkin, TX), Columbus Mammography Center, Inc. (Columbus, OH) and 4 more organizations, listed in the Medicare section above. Each 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 Esther Hwang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Esther Hwang accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Oscar Health Insurance and Sendero Health Plans, Local Nonprofit list Esther Hwang 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 Esther Hwang affiliated with any hospitals?
According to CMS data, Esther Hwang is affiliated with Memorial Hermann Hospital System, Houston Methodist Hospital, Memorial Hermann Northeast Hospital, Memorial Hermann Sugar Land Hospital and Houston Methodist The Woodlands Hospital.
When was this NPI record last updated?
The NPPES record for Esther Hwang was last updated on September 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Esther J Hwang, M.D. · NPI 1477998607
Diagnostic Radiology physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since May 1, 2013.
## Identity
- **NPI:** 1477998607 (Entity type: Individual)
- **Enumerated:** May 1, 2013
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 73793 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 677 N WILMOT RD, Tucson, AZ 85711-2701
- **Phone:** (520) 795-2889
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Privia Medical Group West Texas, PLLC (NPI 1346242567, Abilene, TX); Singleton Associates PA (NPI 1487811766, Shenandoah, TX); Synergy Radiology Associates PLLC (NPI 1902802986, Houston, TX); Angelina Diagnostic Radiology Associates (NPI 1033175302, Lufkin, TX); Columbus Mammography Center, Inc. (NPI 1932240801, Columbus, OH); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Stony Brook, School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** September 10, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1477998607) · Data from the CMS NPPES public registry.