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Dr. William J. Hwang, MD
NPI1093714172
- Medicare services, 2022
- 249
- Part D claims, 2022
- 387
- Publications
- 1
- Industry payments
- $1,059
- Affiliated sites
- 1
- Practice address
- 6750 W S Loop, Bellaire, TX 77401
- Practice phone
- Call (512) 861-6562
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Aspire Fertility Institute, Inc.
Bellaire, Texas
Find Dr. Hwang's professional email, personal email and mobile number
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Dr. William J. Hwang is a neurologist in Bellaire, Texas
Dr. Hwang practices at Aspire Fertility Institute, Inc. in Bellaire, Texas.
Dr. Hwang's NPI, 1093714172, was assigned on July 20, 2005. Dr. Hwang graduated from University of Texas Medical School at San Antonio in 1990. Dr. Hwang holds Texas license J0839.
NPI and contact details
- NPI
- 1093714172NPI Registry (opens in a new tab)
- NPI enumeration date
- July 20, 2005
- NPI status
- Active
- Practice phone
- (512) 861-6562
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. William J. Hwang practices at Aspire Fertility Institute, Inc. in Bellaire, Texas
Dr. Hwang's primary practice is Aspire Fertility Institute, Inc., at 6750 W S Loop, Bellaire, TX 77401 in Harris County. The practice phone is (512) 861-6562.
- Aspire Fertility Institute, Inc.6750 W S Loop, Bellaire, TX 77401 · Harris CountyPhone(512) 861-6562
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William J. Hwang is affiliated with 2 sites of care and 4 medical groups
Dr. Hwang's primary practice is Aspire Fertility Institute, Inc. in Bellaire, Texas. The medical group on file is CHI St. Alexius Health Bismarck Medical Center. Dmand AI also links Dr. Hwang to 3 more medical groups and 1 group practice or clinic, each named with a free account.
Aspire Fertility Institute, Inc.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. William J. Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspire Fertility Institute, Inc. | Available with a free account |
| +1 more site and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William J. Hwang is one of 1,226 neurologists in Texas
Neurology is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Hwang is licensed in Texas.
Specialties and state licenses
- Neurology, TexasPrimary
Neurologists near Dr. Hwang
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
1,226neurologists in Texas
4neurologists in Bellaire
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William J. Hwang billed Medicare for 249 services in 2022
CMS data shows 249 Medicare services from Dr. Hwang across 6 procedure codes in 2022. Medicare paid $19,581 for them.
Medicare services, 2022249
Paid by Medicare$19,581
Procedure codes6
Dr. Hwang's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 2312022: 2176%
- Surgery
- 2021: 02022: 21
- Tests and treatments
- 2021: 402022: 1173%
Where Dr. Hwang's Medicare services took place, 2022
- In an office23896%
- In a facility114%
Dr. Hwang compared with the Texas median for neurologists, 2022
- Dr. Hwang
- Texas median
- Medicare services
- 249vs 45946% below
- Part D claims
- 387vs 48019% below
Medians across 1,116 neurologists in Texas with Dmand AI profiles that report each measure.
Dr. Hwang's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hwang and other neurologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William J. Hwang's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 47, with 57% women.
Dr. Hwang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. William J. Hwang wrote 387 Medicare Part D claims in 2022
In 2022, Dr. Hwang wrote 387 Medicare Part D claims. They cover 13 drugs, with $14,529 in total drug cost. In 2021, CMS named 75 claims across 4 drugs.
Part D claims, 2022387
Drugs named by CMS13
Total drug cost$14,529
Dr. Hwang's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 752022: 387416%
Drugs named by CMS: 13 in 2022, 4 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William J. Hwang has 1 publication on record
Dmand AI links 1 paper to Dr. Hwang in 2012.
Papers1
Recent publications by Dr. Hwang
See who Dr. Hwang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hwang works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William J. Hwang received $1,059 in industry payments from 2016 to 2024
CMS Open Payments shows 37 general payments to Dr. Hwang from 10 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 99% of the total. Sunovion Pharmaceuticals Inc. paid the most, $285.
General payments to Dr. Hwang by program year, 2016 to 2024
General payments to Dr. Hwang by kind, 2016 to 2024
$1.1Kin total
- Food and beverage$1,04499%
- Education$151%
Companies that paid Dr. Hwang the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William J. Hwang graduated from University of Texas Medical School at San Antonio
Dr. Hwang graduated from University of Texas Medical School at San Antonio in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William J. Hwang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William J. Hwang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William J. Hwang's NPI number?
Dr. William J. Hwang's NPI number is 1093714172. It was assigned on July 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William J. Hwang?
Dr. William J. Hwang is a neurologist in Bellaire, Texas. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. William J. Hwang practice?
Dr. Hwang practices at 6750 W S Loop, Bellaire, TX 77401. Dr. Hwang's primary practice is Aspire Fertility Institute, Inc. in Bellaire, Texas. Dmand AI also links Dr. Hwang to 3 medical groups and 1 group practice or clinic.
What is Dr. William J. Hwang's office phone number?
The practice phone on file for Dr. Hwang is (512) 861-6562.
What is Dr. William J. Hwang's medical license number?
Dr. Hwang holds Texas license J0839.
What medical group is Dr. William J. Hwang part of?
Dr. Hwang is linked to CHI St. Alexius Health Bismarck Medical Center. Dmand AI links Dr. Hwang to 3 more medical groups.
Does Dr. William J. Hwang accept Medicare?
Yes. CMS data shows Dr. Hwang billed Medicare for 249 services in 2022.
What services does Dr. William J. Hwang bill to Medicare?
In 2022, Dr. Hwang's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99205) and office visit, new patient (99204).
Where did Dr. William J. Hwang go to medical school?
Dr. Hwang graduated from University of Texas Medical School at San Antonio in 1990.
What drugs does Dr. William J. Hwang prescribe most?
In 2022 Medicare Part D data, Dr. Hwang's most prescribed drugs by claims were Memantine HCl, Donepezil HCl and Duloxetine HCl.
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Has Dr. William J. Hwang received payments from drug or device companies?
CMS Open Payments shows $1,059 in general payments to Dr. Hwang from 10 companies from 2016 to 2024. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. William J. Hwang been practicing?
Dr. Hwang graduated from medical school in 1990, 36 years ago.
Does Dr. William J. Hwang do research?
Dmand AI links 1 publication to Dr. Hwang.
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