Dr. David W. Hwang, MD
- Medicare services, 2024
- 144
- Medicare patients, 2024
- 65
- Part D claims, 2024
- 55
- Hospital affiliations
- 1
- Industry payments
- $128
- Practice address
- 1540 Maple Road, Williamsville, NY 14221
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD
Acute Care Hospital outpatient department · Williamsville, New York
Find Dr. Hwang's professional email, personal email and mobile number
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Dr. David W. Hwang is a hospitalist in Buffalo, New York
Dr. Hwang practices at Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York.
Dr. Hwang's NPI, 1962791061, was assigned on March 30, 2011. Dr. Hwang graduated from Albany Medical College of Union University in 2009. Dr. Hwang holds Washington license MD60323394.
- NPI
- 1962791061NPI Registry (opens in a new tab)
- NPI enumeration date
- March 30, 2011
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David W. Hwang practices at Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York
Dr. Hwang's primary practice is Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD, at 1540 Maple Road, Williamsville, NY 14221.
- Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD1540 Maple Road, Williamsville, NY 14221
Source: Dmand AI Affiliation Data
Dr. David W. Hwang is affiliated with 6 sites of care and 5 medical groups
Dr. Hwang's primary practice is Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York. Dr. Hwang is also affiliated with Harborview Medical Center. The medical group on file is General Physician. Dmand AI also links Dr. Hwang to 4 more group practices and clinics and 4 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David W. Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David W. Hwang is one of 1,796 hospitalists in New York
Hospitalist is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Hwang is licensed in Washington.
Specialties and state licenses
- Hospitalist, WashingtonPrimary
Hospitalists near Dr. Hwang
Counts of hospitalists 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. David W. Hwang billed Medicare for 144 services in 2024
CMS data shows 144 Medicare services from Dr. Hwang across 3 procedure codes in 2024, for 65 Medicare patients. Medicare paid $10,917 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hwang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 452024: 144220%
Dr. Hwang compared with the New York median for hospitalists, 2024
- Dr. Hwang
- New York median
- Medicare services
- 144vs 38863% below
- Medicare patients
- 65vs 16360% below
Medians across 1,696 hospitalists in New York 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David W. Hwang treated 65 Medicare patients in 2024, average age 73
CMS counts 65 Medicare patients who saw Dr. Hwang in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 45% are also on Medicaid. Their average risk score is 2.84, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 64, with 67% women.
Dr. Hwang's Medicare patients by age, 2024
Dr. Hwang's Medicare patients by sex, 2024
- Women2843%
- Men3757%
Chronic conditions among Dr. Hwang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Anxiety55%
- Arthritis55%
- Mood disorders46%
- Chronic kidney disease45%
- Depression43%
- Heart failure40%
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 64
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David W. Hwang wrote 55 Medicare Part D claims in 2024
In 2024, Dr. Hwang wrote 55 Medicare Part D claims for 29 patients. 85% of them were for generic drugs.
Dr. Hwang's Part D claims by kind of drug, 2024
- Generic47 claims85%
- Brand-name and other8 claims15%
Drug classes CMS tracks in Dr. Hwang's Part D claims, 2024
- Antibiotics35%19 of 55 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. David W. Hwang received $128 in industry payments from 2020 to 2023
CMS Open Payments shows 3 general payments to Dr. Hwang from 3 drug and device companies from 2020 to 2023. Food and beverage make up the largest share, 100% of the total. Coloplast Corp paid the most, $88.
General payments to Dr. Hwang by program year, 2020 to 2023
Companies that paid Dr. Hwang the most, 2020 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David W. Hwang graduated from Albany Medical College of Union University
Dr. Hwang graduated from Albany Medical College of Union University in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David W. 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 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 |
| 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. David W. Hwang
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What is Dr. David W. Hwang's NPI number?
Dr. David W. Hwang's NPI number is 1962791061. It was assigned on March 30, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. David W. Hwang?
Dr. David W. Hwang is a hospitalist in Buffalo, New York. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. David W. Hwang practice?
Dr. Hwang practices at 1540 Maple Road, Williamsville, NY 14221. Dr. Hwang's primary practice is Millard Fillmore Suburban Hospital - Infusion Therapy - HOPD in Williamsville, New York. Dmand AI also links Dr. Hwang to 4 group practices and clinics and 4 medical groups.
What is Dr. David W. Hwang's medical license number?
Dr. Hwang holds Washington license MD60323394.
Which hospitals is Dr. David W. Hwang affiliated with?
Dr. Hwang is affiliated with Harborview Medical Center.
What medical group is Dr. David W. Hwang part of?
Dr. Hwang is linked to General Physician. Dmand AI links Dr. Hwang to 4 more medical groups.
Does Dr. David W. Hwang accept Medicare?
Yes. CMS data shows Dr. Hwang billed Medicare for 144 services in 2024.
How many Medicare patients does Dr. David W. Hwang see?
CMS counts 65 Medicare patients who saw Dr. Hwang in 2024, with an average age of 73.
What services does Dr. David W. Hwang bill to Medicare?
In 2024, Dr. Hwang's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Dr. David W. Hwang go to medical school?
Dr. Hwang graduated from Albany Medical College of Union University in 2009.
Has Dr. David W. Hwang received payments from drug or device companies?
CMS Open Payments shows $128 in general payments to Dr. Hwang from 3 companies from 2020 to 2023. The largest total came from Coloplast Corp.
How long has Dr. David W. Hwang been practicing?
Dr. Hwang graduated from medical school in 2009, 17 years ago.
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