Dr. Gary C. Chen, MD
- Medicare services, 2024
- 2,104
- Medicare patients, 2024
- 540
- Part D claims, 2024
- 2,556
- MIPS score, 2024
- 98
- Hospital affiliations
- 1
- Practice address
- 8530 W Sunset Rd, Las Vegas, NV 89113
- Practice phone
- Call (480) 840-3075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CareNow Urgent Care - Cheyenne & Durango
Urgent Care Center · Las Vegas, Nevada
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Gary C. Chen is a gastroenterologist in Las Vegas, Nevada
Dr. Chen practices at CareNow Urgent Care - Cheyenne & Durango in Las Vegas, Nevada.
Dr. Chen's NPI, 1720200132, was assigned on May 3, 2007. Dr. Chen graduated from University of California, Geffen School of Medicine in 2004. Dr. Chen holds Nevada license 13449.
- NPI
- 1720200132NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456531615
- NPI enumeration date
- May 3, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (480) 840-3075
- 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. Gary C. Chen practices at CareNow Urgent Care - Cheyenne & Durango in Las Vegas, Nevada
Dr. Chen's primary practice is CareNow Urgent Care - Cheyenne & Durango, at 8530 W Sunset Rd, Las Vegas, NV 89113. The practice phone is (480) 840-3075.
- CareNow Urgent Care - Cheyenne & Durango8530 W Sunset Rd, Las Vegas, NV 89113Phone(480) 840-3075
Source: Dmand AI Affiliation Data
Dr. Gary C. Chen is affiliated with 5 sites of care and 2 medical groups
Dr. Chen's primary practice is CareNow Urgent Care - Cheyenne & Durango in Las Vegas, Nevada. Dr. Chen is also affiliated with Avon Hospital at Richard E. Jacobs Campus. The medical group on file is Southwest Medical Associates. Dmand AI also links Dr. Chen to 2 more group practices and clinics, 1 ambulatory surgery center 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. Gary C. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CareNow Urgent Care - Cheyenne & Durango | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary C. Chen is one of 107 gastroenterologists in Nevada
Gastroenterology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Chen's licenses on file in 2 states: Nevada and California.
Specialties and state licenses
- Gastroenterology, NevadaPrimary
- California license
Gastroenterologists near Dr. Chen
Counts of gastroenterologists 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. Gary C. Chen billed Medicare for 2,104 services in 2024
CMS data shows 2,104 Medicare services from Dr. Chen across 20 procedure codes in 2024, for 540 Medicare patients. Medicare paid $131,151 for them.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3612024: 1,64621%
- Surgery
- 2023: 2082024: 23011%
- Other services
- 2023: 872024: 190118%
- Tests and treatments
- 2023: 472024: 2351%
- Imaging
- 2023: 02024: 15
Where Dr. Chen's Medicare services took place, 2024
- In an office1,78285%
- In a facility32215%
Dr. Chen compared with the Nevada median for gastroenterologists, 2024
- Dr. Chen
- Nevada median
- Medicare services
- 2,104vs 7582.8 times
- Medicare patients
- 540vs 40035% above
- Part D claims
- 2,364vs 5944.0 times
Medians across 106 gastroenterologists in Nevada with Dmand AI profiles that report each measure.
Dr. Chen'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. Gary C. Chen treated 540 Medicare patients in 2024, average age 71
CMS counts 540 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 319 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 24% are also on Medicaid. Their average risk score is 1.05, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 61, with 56% women.
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women31659%
- Men22441%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis42%
- Diabetes35%
- Ischemic heart disease23%
- Anxiety19%
- Chronic kidney disease18%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary C. Chen wrote 2,556 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 2,556 Medicare Part D claims for 924 patients. 82% of them were for generic drugs. CMS names the drug for 2,364 of them, across 25 drugs with 11 or more claims each, at $238,393 in total drug cost. In 2023, CMS named 1,876 claims across 26 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic2,099 claims82%
- Brand-name457 claims18%
Dr. Chen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chen's Part D claims, 2024
- Antibiotics2%45 of 2,556 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,8762024: 2,36426%
Drugs named by CMS: 25 in 2024, 26 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Gary C. Chen scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Chen for performance year 2024, reported as part of a group. Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth. CMS counts 139 procedures of colonoscopy by Dr. Chen, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chen's MIPS scores, performance year 2024
- 98of 100Final score
- 96.8of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Chen ranks in Medicare procedure volume
- Colonoscopy
- 87th percentile139 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 75th percentile92 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gary C. Chen received $33,114 in industry payments from 2016 to 2025
CMS Open Payments shows 933 general payments to Dr. Chen from 51 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 51% of the total. Olympus America Inc. paid the most, $15,851.
General payments to Dr. Chen by program year, 2016 to 2025
General payments to Dr. Chen by kind, 2016 to 2025
- Food and beverage$17,00151%
- Debt forgiveness$15,85148%
- Speaker and faculty fees$2251%
- Education$370%
Companies that paid Dr. Chen 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. Gary C. Chen graduated from University of California, Geffen School of Medicine
Dr. Chen graduated from University of California, Geffen School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gary C. Chen'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Doctors and Clinicians Utilization Data (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. Gary C. Chen
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. Gary C. Chen's NPI number?
Dr. Gary C. Chen's NPI number is 1720200132. It was assigned on May 3, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary C. Chen?
Dr. Gary C. Chen is a gastroenterologist in Las Vegas, Nevada. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Gary C. Chen practice?
Dr. Chen practices at 8530 W Sunset Rd, Las Vegas, NV 89113. Dr. Chen's primary practice is CareNow Urgent Care - Cheyenne & Durango in Las Vegas, Nevada. Dmand AI also links Dr. Chen to 2 group practices and clinics, 1 ambulatory surgery center and 1 medical group.
What is Dr. Gary C. Chen's office phone number?
The practice phone on file for Dr. Chen is (480) 840-3075.
What is Dr. Gary C. Chen's medical license number?
Dr. Chen holds Nevada license 13449, one of the licenses on file in 2 states.
Which states has Dr. Gary C. Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in Nevada and California.
Which hospitals is Dr. Gary C. Chen affiliated with?
Dr. Chen is affiliated with Avon Hospital at Richard E. Jacobs Campus.
What medical group is Dr. Gary C. Chen part of?
Dr. Chen is linked to Southwest Medical Associates. Dmand AI links Dr. Chen to 1 more medical group.
Does Dr. Gary C. Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 2,104 services in 2024, and Dr. Chen accepts Medicare assignment.
Does Dr. Gary C. Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
Show 7 more questionsShow fewer questions
What is Dr. Gary C. Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Dr. Gary C. Chen see?
CMS counts 540 Medicare patients who saw Dr. Chen in 2024, with an average age of 71.
What services does Dr. Gary C. Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were care management and other visits (99439), care management and other visits (99490) and office visit, established patient (99214).
Where did Dr. Gary C. Chen go to medical school?
Dr. Chen graduated from University of California, Geffen School of Medicine in 2004.
What drugs does Dr. Gary C. Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Lactulose, Gavilyte-C and Pantoprazole Sodium.
Has Dr. Gary C. Chen received payments from drug or device companies?
CMS Open Payments shows $33,114 in general payments to Dr. Chen from 51 companies from 2016 to 2025. The largest total came from Olympus America Inc.
How long has Dr. Gary C. Chen been practicing?
Dr. Chen graduated from medical school in 2004, 22 years ago.
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