Dr. Walt Hwang, MD
- Medicare services, 2024
- 34
- Medicare patients, 2024
- 107
- MIPS score, 2024
- 89
- Hospital affiliations
- 1
- Industry payments
- $655
- Practice address
- 23900 Katy Freeway, Katy, TX 77494
- Practice phone
- Call (281) 392-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hwang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Walt Hwang is an anesthesiologist in Katy, Texas
Dr. Hwang practices at Memorial Hermann Katy Hospital in Katy, Texas, part of Memorial Hermann Health System.
Dr. Hwang's NPI, 1770545857, was assigned on April 4, 2006. Dr. Hwang graduated from Baylor College Of Medicine in 2004. Dr. Hwang's Texas license number on file is P7785.
- NPI
- 1770545857NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830317569
- NPI enumeration date
- April 4, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (281) 392-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Walt Hwang practices at Memorial Hermann Katy Hospital in Katy, Texas
Dr. Hwang's primary practice is Memorial Hermann Katy Hospital, at 23900 Katy Freeway, Katy, TX 77494 in Fort Bend County. The practice phone is (281) 392-1111.
- Memorial Hermann Katy Hospital23900 Katy Freeway, Katy, TX 77494 · Fort Bend CountyPhone(281) 392-1111
Source: Dmand AI Affiliation Data
Dr. Walt Hwang is affiliated with 3 sites of care and 2 medical groups
Dr. Hwang's primary practice is Memorial Hermann Katy Hospital in Katy, Texas, part of Memorial Hermann Health System. The medical group on file is US Anesthesia Partners. Dmand AI also links Dr. Hwang to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Walt Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hermann Katy Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Memorial Hermann Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Walt Hwang is one of 4,073 anesthesiologists in Texas
Anesthesiology is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Hwang is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Hwang's licenses on file in 3 states: Texas, Indiana and Iowa.
Specialties and state licenses
- Anesthesiology, TexasPrimary
- Indiana license
- Iowa license
Anesthesiologists near Dr. Hwang
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Walt Hwang billed Medicare for 34 services in 2024
CMS data shows 34 Medicare services from Dr. Hwang across 3 procedure codes in 2024, for 107 Medicare patients. Medicare paid $4,491 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hwang's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Anesthesia
- 2022: 112024: 22100%
- Surgery
- 2022: 172024: 1229%
Dr. Hwang compared with the Texas median for anesthesiologists, 2024
- Dr. Hwang
- Texas median
- Medicare services
- 34vs 7152% below
- Medicare patients
- 107vs 13219% below
Medians across 3,710 anesthesiologists in Texas with Dmand AI profiles that report each measure.
Dr. Hwang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Hwang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hwang and other anesthesiologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walt Hwang treated 107 Medicare patients in 2024, average age 75
CMS counts 107 Medicare patients who saw Dr. Hwang in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 54, with 69% women.
Dr. Hwang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hwang's Medicare patients by sex, 2024
- Women3836%
- Men6964%
Chronic conditions among Dr. Hwang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes38%
- Ischemic heart disease38%
- Chronic kidney disease34%
- Cancer29%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
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 54
Patient panel by sex, all payers
- Women69%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walt Hwang scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Hwang for performance year 2024, reported as part of a group. Dr. Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hwang's MIPS scores, performance year 2024
- 89of 100Final score
- 91.3of 100Quality
- 40of 100Improvement Activities
- 79of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Walt Hwang received $655 in industry payments from 2016 to 2025
CMS Open Payments shows 29 general payments to Dr. Hwang from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $219.
General payments to Dr. Hwang by program year, 2016 to 2025
Companies that paid Dr. Hwang the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walt Hwang graduated from Baylor College Of Medicine
Dr. Hwang graduated from Baylor College Of Medicine in 2004.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Walt Hwang accepts plans from 19 insurance carriers
Dr. Hwang is in network with 19 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- HCSC
- +11 more carriersWith a free account
Plan types Dr. Hwang accepts, by number of carriers
- PPO12
- HMO11
- Medicare8
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Walt 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Walt 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. Walt Hwang's NPI number?
Dr. Walt Hwang's NPI number is 1770545857. It was assigned on April 4, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Walt Hwang?
Dr. Walt Hwang is an anesthesiologist in Katy, Texas. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Walt Hwang practice?
Dr. Hwang practices at 23900 Katy Freeway, Katy, TX 77494. Dr. Hwang's primary practice is Memorial Hermann Katy Hospital in Katy, Texas, part of Memorial Hermann Health System. Dmand AI also links Dr. Hwang to 2 group practices and clinics and 1 medical group.
What is Dr. Walt Hwang's office phone number?
The practice phone on file for Dr. Hwang is (281) 392-1111.
What is Dr. Walt Hwang's medical license number?
Dr. Hwang's Texas license number on file is P7785, one of the licenses on file in 3 states.
Which states has Dr. Walt Hwang been licensed in?
Dmand AI has state licenses on file for Dr. Hwang in Texas (2013 to 2025), Indiana (2005 to 2021) and Iowa (2012 to 2013).
Which hospitals is Dr. Walt Hwang affiliated with?
Dr. Hwang practices at Memorial Hermann Katy Hospital in Katy, Texas.
What medical group is Dr. Walt Hwang part of?
Dr. Hwang is linked to US Anesthesia Partners. Dmand AI links Dr. Hwang to 1 more medical group.
Does Dr. Walt Hwang accept Medicare?
Yes. CMS data shows Dr. Hwang billed Medicare for 34 services in 2024, and Dr. Hwang accepts Medicare assignment.
What is Dr. Walt Hwang's MIPS score?
Dr. Hwang's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Walt Hwang see?
CMS counts 107 Medicare patients who saw Dr. Hwang in 2024, with an average age of 75.
Is Dr. Walt Hwang board certified?
Yes. Dr. Hwang is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Walt Hwang bill to Medicare?
In 2024, Dr. Hwang's most billed Medicare services were surgery: brain, spine and nerves (64488), anesthesia (00731) and anesthesia (00840).
Where did Dr. Walt Hwang go to medical school?
Dr. Hwang graduated from Baylor College Of Medicine in 2004.
Has Dr. Walt Hwang received payments from drug or device companies?
CMS Open Payments shows $655 in general payments to Dr. Hwang from 7 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Walt Hwang been practicing?
Dr. Hwang graduated from medical school in 2004, 22 years ago.
What insurance does Dr. Walt Hwang accept?
Dr. Hwang is in network with 19 carriers, including Aetna, Excellus BlueCross BlueShield and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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