J Gastrointest Surg
Colonic NeoplasmsColonoscopyColorectal Neoplasms
Dr. Stephen S. Hwang, MD, PhD
NPI1497740468
- Medicare services, 2019
- 436
- Part D claims, 2019
- 121
- Publications
- 5
- Industry payments
- $790
- State license
- 1
- Practice address
- 1011 Honor Heights Dr, Muskogee, OK 74401
- Practice phone
- Call (615) 355-3451
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eastern Oklahoma VA Health Care System
Muskogee, Oklahoma
Find Dr. Hwang's professional email, personal email and mobile number
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Dr. Stephen S. Hwang is a gastroenterologist in Muskogee, Oklahoma
Dr. Hwang practices at Eastern Oklahoma VA Health Care System in Muskogee, Oklahoma.
Dr. Hwang's NPI, 1497740468, was assigned on September 15, 2005. Dr. Hwang holds Oklahoma license 20382.
NPI and contact details
- NPI
- 1497740468NPI Registry (opens in a new tab)
- NPI enumeration date
- September 15, 2005
- NPI status
- Active
- Practice phone
- (615) 355-3451
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Stephen S. Hwang practices at Eastern Oklahoma VA Health Care System in Muskogee, Oklahoma
Dr. Hwang's primary practice is Eastern Oklahoma VA Health Care System, at 1011 Honor Heights Dr, Muskogee, OK 74401 in Muskogee County. The practice phone is (615) 355-3451.
- Eastern Oklahoma VA Health Care System1011 Honor Heights Dr, Muskogee, OK 74401 · Muskogee CountyPhone(615) 355-3451
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen S. Hwang is affiliated with 1 site of care
Dr. Hwang's primary practice is Eastern Oklahoma VA Health Care System in Muskogee, Oklahoma.
Eastern Oklahoma VA Health Care SystemPrimary
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Stephen S. 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 |
|---|---|
| Eastern Oklahoma VA Health Care System | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen S. Hwang is one of 144 gastroenterologists in Oklahoma
Gastroenterology is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Hwang is licensed in Oklahoma.
Specialties and state licenses
- Gastroenterology, OklahomaPrimary
Gastroenterologists near Dr. Hwang
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
144gastroenterologists in Oklahoma
5gastroenterologists in Muskogee
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen S. Hwang billed Medicare for 436 services in 2019
CMS data shows 436 Medicare services from Dr. Hwang across 11 procedure codes in 2019. Medicare paid $34,320 for them.
Medicare services, 2019436
Paid by Medicare$34,320
Procedure codes11
Dr. Hwang's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 6452019: 30453%
- Surgery
- 2018: 2232019: 12146%
- Other services
- 2018: 112019: 11No change
Where Dr. Hwang's Medicare services took place, 2019
- In an office28866%
- In a facility14834%
Dr. Hwang compared with the Oklahoma median for gastroenterologists, 2019
- Dr. Hwang
- Oklahoma median
- Medicare services
- 436vs 71239% below
- Part D claims
- 121vs 52677% below
Medians across 142 gastroenterologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Hwang's most billed Medicare procedure codes, 2019
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 gastroenterologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen S. Hwang's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 55, with 21% 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 55
Patient panel by sex, all payers
- Women21%
- Men79%
Source: Dmand AI Patient Panel Data
Dr. Stephen S. Hwang wrote 121 Medicare Part D claims in 2019
In 2019, Dr. Hwang wrote 121 Medicare Part D claims. They cover 5 drugs, with $44,622 in total drug cost. In 2018, CMS named 165 claims across 6 drugs.
Part D claims, 2019121
Drugs named by CMS5
Total drug cost$44,622
Dr. Hwang's most prescribed drugs by claims, 2019
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, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 1652019: 12127%
Drugs named by CMS: 5 in 2019, 6 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Stephen S. Hwang has 5 publications on record
Dmand AI links 5 papers to Dr. Hwang, published from 2015 to 2020. 2015 was the busiest year, with 2. The most frequent topics are Singapore.
Papers5
Years published2015 to 2020
Dr. Hwang's papers by year, 2015 to 2020
Topics Dr. Hwang writes about most
- Singapore
Recent publications by Dr. Hwang
Hepatic VeinsLiver TransplantationLiving Donors
Anatomic LandmarksAsian PeopleClavicle
MortalityNecrosisPancreatitis
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 gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen S. Hwang received $790 in industry payments from 2016 to 2020
CMS Open Payments shows 30 general payments to Dr. Hwang from 7 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $545.
General payments to Dr. Hwang by program year, 2016 to 2020
Companies that paid Dr. Hwang the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Stephen S. 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 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) |
| 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. Stephen S. 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. Stephen S. Hwang's NPI number?
Dr. Stephen S. Hwang's NPI number is 1497740468. It was assigned on September 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen S. Hwang?
Dr. Stephen S. Hwang is a gastroenterologist in Muskogee, Oklahoma. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Stephen S. Hwang practice?
Dr. Hwang practices at 1011 Honor Heights Dr, Muskogee, OK 74401. Dr. Hwang's primary practice is Eastern Oklahoma VA Health Care System in Muskogee, Oklahoma.
What is Dr. Stephen S. Hwang's office phone number?
The practice phone on file for Dr. Hwang is (615) 355-3451.
What is Dr. Stephen S. Hwang's medical license number?
Dr. Hwang holds Oklahoma license 20382.
Does Dr. Stephen S. Hwang accept Medicare?
Yes. CMS data shows Dr. Hwang billed Medicare for 436 services in 2019.
What services does Dr. Stephen S. Hwang bill to Medicare?
In 2019, Dr. Hwang's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and office visit, established patient (99214).
What drugs does Dr. Stephen S. Hwang prescribe most?
In 2019 Medicare Part D data, Dr. Hwang's most prescribed drugs by claims were Gavilyte-G, Creon and Omeprazole.
Has Dr. Stephen S. Hwang received payments from drug or device companies?
CMS Open Payments shows $790 in general payments to Dr. Hwang from 7 companies from 2016 to 2020. The largest total came from Gilead Sciences, Inc.
How long has Dr. Stephen S. Hwang been practicing?
Dr. Hwang's NPI was assigned in 2005.
Does Dr. Stephen S. Hwang do research?
Dmand AI links 5 publications to Dr. Hwang, published from 2015 to 2020.
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