Gary Chen, M.D.
Gastroenterology Physician · Las Vegas, NV
Gary Chen, M.D. is a gastroenterology physician with a practice address in Las Vegas, Nevada, and NPI 1720200132, issued on May 3, 2007. Check the license (Nevada 13449, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gary Chen
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 13449 NV
A965014 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8530 W Sunset RD, Las Vegas, NV 89113
- Phone
- (702) 483-4483
- Enumerated
- May 3, 2007
- Record last updated
- Feb 21, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (702) 483-4493
- Medicaid ID
- 1720200132 NV
- Medicare enrollment
- Enrolled (PECOS I20110207000174); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 119 in Nevada → Look up another NPI →
Also registered at 8530 W Sunset RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tarek Ammar, MDGastroenterology Physician1649478314
- John Anson, M.D.Neurological Surgery Physician1891752176
- Karina HerreraInternal Medicine Physician1881023067
- Elizabeth Huck, DODiagnostic Radiology Physician1255375838
- Andrew Kim, MDGastroenterology Physician1790968816
- Kevin Rayls, M.D.Surgery Physician1437115383
Verify Gary Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 13449Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average gastroenterology physician in 2024
2,556 Medicare Part D claims for 924 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Lactulose537 claims
- Gavilyte-C417 claims
- Pantoprazole Sodium299 claims
- Linzess244 claims
- Omeprazole120 claims
- Famotidine116 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,882.48
95 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Kim Chen PLLCLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gary Chen among 119 gastroenterology physician records in Nevada
Gary Chen, M.D. is one of 119 gastroenterology physician records with a practice address in Nevada. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 33% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2004 · median 1998 among the 92 with a school on file
- Record last updated2017 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Nevada
There are 119 gastroenterology physician records in Nevada.
All 119 in Nevada → Every provider in Las Vegas → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Tarek Ammar, MDLas Vegas, NV 891131649478314
- Brent Burnette, MDLas Vegas, NV 891131699989251
- Andrew Kim, MDLas Vegas, NV 891131790968816
- Donald Kwok, M.D.Las Vegas, NV 891131477505766
- Gregory Kwok, M.D.Las Vegas, NV 891131952353997
- Katrina Naik, MDLas Vegas, NV 891131669969051
- Frank Nemec, M.D.Las Vegas, NV 891131629045786
- Christian Stone, MD, MPHLas Vegas, NV 891131750308284
Common questions
What is Gary Chen, M.D.'s NPI number?
Gary Chen, M.D.'s National Provider Identifier (NPI) is 1720200132, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gary Chen, M.D. located?
The NPPES record lists a practice address at 8530 W Sunset RD, Las Vegas, NV, 89113. Phone: (702) 483-4483. Providers update this record themselves, so call before visiting.
How can I verify Gary Chen, M.D.'s license?
NPPES lists Nevada license number 13449, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gary Chen, M.D. prescribe under Medicare Part D?
In 2024, Gary Chen, M.D. had 2,556 Medicare Part D claims for 924 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Gary Chen, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.