Dr. Yan Chen, MD, PhD
- Medicare services, 2024
- 408
- Medicare patients, 2024
- 339
- Part D claims, 2024
- 358
- Hospital affiliations
- 2
- Industry payments
- $82
- Practice address
- 2305 S 65 Highway, Marshall, MO 65340
- Practice phone
- Call (660) 886-7431
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Yan Chen is a gastroenterologist in Marshall, Missouri
Dr. Chen practices at Fitzgibbon Hospital in Marshall, Missouri, part of American Medical Administrators.
Dr. Chen's NPI, 1184627101, was assigned on May 23, 2005. Dr. Chen holds Missouri license 2004007950.
- NPI
- 1184627101NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254306749
- NPI enumeration date
- May 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (660) 886-7431
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Yan Chen practices at Fitzgibbon Hospital in Marshall, Missouri
Dr. Chen's primary practice is Fitzgibbon Hospital, at 2305 S 65 Highway, Marshall, MO 65340 in Saline County. The practice phone is (660) 886-7431.
- Fitzgibbon Hospital2305 S 65 Highway, Marshall, MO 65340 · Saline CountyPhone(660) 886-7431
Source: Dmand AI Affiliation Data
Dr. Yan Chen is affiliated with 3 sites of care and 3 medical groups
Dr. Chen's primary practice is Fitzgibbon Hospital in Marshall, Missouri, part of American Medical Administrators. Dr. Chen is also affiliated with Cass Regional Medical Center. The medical group on file is Marshall Family Practice. Dmand AI also links Dr. Chen to 2 more medical groups and 1 group practice or clinic, 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. Yan Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fitzgibbon Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Yan Chen is one of 329 gastroenterologists in Missouri
Gastroenterology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chen is licensed in Missouri.
Specialties and state licenses
- Gastroenterology, MissouriPrimary
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. Yan Chen billed Medicare for 408 services in 2024
CMS data shows 408 Medicare services from Dr. Chen across 14 procedure codes in 2024, for 339 Medicare patients. Medicare paid $48,019 for them.
Dr. Chen's Medicare services by type, 2024
- Surgery197
- Office and hospital visits160
- Other services51
Where Dr. Chen's Medicare services took place, 2024
- In an office8020%
- In a facility32880%
Dr. Chen compared with the Missouri median for gastroenterologists, 2024
- Dr. Chen
- Missouri median
- Medicare services
- 408vs 416Close to median
- Medicare patients
- 339vs 29615% above
- Part D claims
- 201vs 43454% below
Medians across 337 gastroenterologists in Missouri 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. Yan Chen treated 339 Medicare patients in 2024, average age 73
CMS counts 339 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 179 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 9% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 60, with 49% women.
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women19457%
- Men14543%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes33%
- Ischemic heart disease32%
- Mood disorders32%
- Anxiety31%
- Depression30%
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 60
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Yan Chen wrote 358 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 358 Medicare Part D claims for 161 patients. 73% of them were for generic drugs. CMS names the drug for 201 of them, across 7 drugs with 11 or more claims each, at $8,963 in total drug cost.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic261 claims73%
- Brand-name97 claims27%
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
- Antibiotics3%11 of 358 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Yan Chen ranks in the 75th percentile for colonoscopy in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 82 procedures of colonoscopy by Dr. Chen, more than 75% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chen ranks in Medicare procedure volume
- Colonoscopy
- 75th percentile82 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 66th percentile60 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Yan Chen received $82 in industry payments in 2024
CMS Open Payments shows 4 general payments to Dr. Chen from 3 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $39.
Companies that paid Dr. Chen the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Yan 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Yan 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. Yan Chen's NPI number?
Dr. Yan Chen's NPI number is 1184627101. It was assigned on May 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Yan Chen?
Dr. Yan Chen is a gastroenterologist in Marshall, Missouri. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Yan Chen practice?
Dr. Chen practices at 2305 S 65 Highway, Marshall, MO 65340. Dr. Chen's primary practice is Fitzgibbon Hospital in Marshall, Missouri, part of American Medical Administrators. Dmand AI also links Dr. Chen to 2 medical groups and 1 group practice or clinic.
What is Dr. Yan Chen's office phone number?
The practice phone on file for Dr. Chen is (660) 886-7431.
What is Dr. Yan Chen's medical license number?
Dr. Chen holds Missouri license 2004007950.
Which hospitals is Dr. Yan Chen affiliated with?
Dr. Chen practices at Fitzgibbon Hospital in Marshall, Missouri. Dr. Chen is also affiliated with Cass Regional Medical Center.
What medical group is Dr. Yan Chen part of?
Dr. Chen is linked to Marshall Family Practice. Dmand AI links Dr. Chen to 2 more medical groups.
Does Dr. Yan Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 408 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Yan Chen see?
CMS counts 339 Medicare patients who saw Dr. Chen in 2024, with an average age of 73.
What services does Dr. Yan Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were surgery: digestive system (45385), hospital inpatient care (99232) and surgery: digestive system (43239).
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What drugs does Dr. Yan Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Omeprazole, Sutab and Pantoprazole Sodium.
Has Dr. Yan Chen received payments from drug or device companies?
CMS Open Payments shows $82 in general payments to Dr. Chen from 3 companies from 2024 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Yan Chen been practicing?
Dr. Chen graduated from medical school in 1982, 44 years ago.
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