AnorexiaBetacoronavirusCoronavirus Infections
Dr. Alan Chen, MD
NPI1033539945PAC ID8729309398
- Medicare services, 2024
- 658
- Medicare patients, 2024
- 452
- Part D claims, 2024
- 392
- Publications
- 6
- MIPS score, 2024
- 82
- Practice address
- 1300 Bellona Ave, Lutherville Timonium, MD 21093
- Practice phone
- Call (410) 821-1900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medstar Endoscopy Center at Lutherville, LLC
Lutherville Timonium, Maryland
Find Dr. Chen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Alan Chen is a gastroenterologist in Lutherville Timonium, Maryland
Dr. Chen practices at Medstar Endoscopy Center at Lutherville, LLC in Lutherville Timonium, Maryland.
Dr. Chen's NPI, 1033539945, was assigned on April 17, 2014. Dr. Chen graduated from Duke University School of Medicine in 2014. Dr. Chen holds Maryland license D0089536.
NPI and contact details
- NPI
- 1033539945NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729309398
- NPI enumeration date
- April 17, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 821-1900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alan Chen practices at Medstar Endoscopy Center at Lutherville, LLC in Lutherville Timonium, Maryland
Dr. Chen's primary practice is Medstar Endoscopy Center at Lutherville, LLC, at 1300 Bellona Ave, Lutherville Timonium, MD 21093 in Baltimore County. The practice phone is (410) 821-1900.
- Medstar Endoscopy Center at Lutherville, LLC1300 Bellona Ave, Lutherville Timonium, MD 21093 · Baltimore CountyPhone(410) 821-1900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alan Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is Medstar Endoscopy Center at Lutherville, LLC in Lutherville Timonium, Maryland. Dr. Chen is also affiliated with MedStar Franklin Square Medical Center. The medical group on file is MedStar Medical Group.
Medstar Endoscopy Center at Lutherville, LLCPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alan Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medstar Endoscopy Center at Lutherville, LLC | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Chen practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Alan Chen is one of 405 gastroenterologists in Maryland
Gastroenterology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Chen is licensed in Maryland.
Specialties and state licenses
- Gastroenterology, MarylandPrimary
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. Alan Chen billed Medicare for 658 services in 2024
CMS data shows 658 Medicare services from Dr. Chen across 12 procedure codes in 2024, for 452 Medicare patients. Medicare paid $87,745 for them.
Medicare services, 2024658
Medicare patients452
Paid by Medicare$87,745
Procedure codes12
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3572024: 3376%
- Surgery
- 2023: 2282024: 26617%
- Other services
- 2023: 622024: 5511%
Where Dr. Chen's Medicare services took place, 2024
- In an office25739%
- In a facility40161%
Dr. Chen compared with the Maryland median for gastroenterologists, 2024
- Dr. Chen
- Maryland median
- Medicare services
- 658vs 668Close to median
- Medicare patients
- 452vs 39016% above
- Part D claims
- 307vs 39222% below
Medians across 396 gastroenterologists in Maryland 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.
Need commercial claims for Dr. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other gastroenterologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alan Chen treated 452 Medicare patients in 2024, average age 72
CMS counts 452 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 228 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 59, with 53% women.
Medicare patients, 2024452
Average age72
Average risk score1.40
Also on Medicaid16%
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women25857%
- Men19443%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Ischemic heart disease35%
- Mood disorders34%
- Diabetes33%
- Anxiety31%
- Chronic kidney disease29%
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 59
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alan Chen wrote 392 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 392 Medicare Part D claims for 140 patients. 89% of them were for generic drugs. CMS names the drug for 307 of them, across 9 drugs with 11 or more claims each, at $25,280 in total drug cost. In 2023, CMS named 232 claims across 8 drugs.
Part D claims, 2024392
Drugs named by CMS9
Total drug cost$25,280
Part D patients140
Dr. Chen's Part D claims by kind of drug, 2024
- Generic348 claims89%
- Brand-name44 claims11%
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%12 of 392 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: 2322024: 30732%
Drugs named by CMS: 9 in 2024, 8 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. Alan Chen scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 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 113 procedures of colonoscopy by Dr. Chen, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chen's MIPS scores, performance year 2024
- 82of 100Final score
- 67.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
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
- 82nd percentile113 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 79th percentile111 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)
For MedTech and pharma teams
Find gastroenterologists like Dr. Chen by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Alan Chen has 6 publications on record
Dmand AI links 6 papers to Dr. Chen, published from 2018 to 2020. 2018 was the busiest year, with 2. The most frequent topics are Behavioral Risk Factor Surveillance System. Dr. Chen's most frequent co-authors are Amol Agarwal, MD, Jacob Eugene Sunshine, MD and Paul J. Thuluvath, MD.
Papers6
Years published2018 to 2020
Dr. Chen's papers by year, 2018 to 2020
Topics Dr. Chen writes about most
- Behavioral Risk Factor Surveillance System
Dr. Chen's most frequent co-authors
- Amol Agarwal, MD2 shared papers
- Jacob Eugene Sunshine, MD2 shared papers
- Paul J. Thuluvath, MD2 shared papers
Recent publications by Dr. Chen
Clin Gastroenterol Hepatol
Double-Balloon EnteroscopyIleal NeoplasmsMeckel Diverticulum
AlaskaAlcohol DrinkingBehavioral Risk Factor Surveillance System
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen 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. Alan Chen received $1,128 in industry payments from 2017 to 2025
CMS Open Payments shows 36 general payments to Dr. Chen from 8 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $642.
General payments to Dr. Chen by program year, 2017 to 2025
Companies that paid Dr. Chen the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alan Chen graduated from Duke University School of Medicine
Dr. Chen graduated from Duke University School of Medicine in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alan 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 | 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 DataDmand 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) |
| 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) |
| 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. Alan 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. Alan Chen's NPI number?
Dr. Alan Chen's NPI number is 1033539945. It was assigned on April 17, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Alan Chen?
Dr. Alan Chen is a gastroenterologist in Lutherville Timonium, Maryland. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Alan Chen practice?
Dr. Chen practices at 1300 Bellona Ave, Lutherville Timonium, MD 21093. Dr. Chen's primary practice is Medstar Endoscopy Center at Lutherville, LLC in Lutherville Timonium, Maryland.
What is Dr. Alan Chen's office phone number?
The practice phone on file for Dr. Chen is (410) 821-1900.
What is Dr. Alan Chen's medical license number?
Dr. Chen holds Maryland license D0089536.
Which hospitals is Dr. Alan Chen affiliated with?
Dr. Chen is affiliated with MedStar Franklin Square Medical Center.
What medical group is Dr. Alan Chen part of?
Dr. Chen is linked to MedStar Medical Group.
Does Dr. Alan Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 658 services in 2024, and Dr. Chen accepts Medicare assignment.
Does Dr. Alan Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
What is Dr. Alan Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Alan Chen see?
CMS counts 452 Medicare patients who saw Dr. Chen in 2024, with an average age of 72.
What services does Dr. Alan Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and hospital inpatient care (99223).
Where did Dr. Alan Chen go to medical school?
Dr. Chen graduated from Duke University School of Medicine in 2014.
What drugs does Dr. Alan Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Omeprazole, Famotidine and Pantoprazole Sodium.
Has Dr. Alan Chen received payments from drug or device companies?
CMS Open Payments shows $1,128 in general payments to Dr. Chen from 8 companies from 2017 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Alan Chen been practicing?
Dr. Chen graduated from medical school in 2014, 12 years ago.
Does Dr. Alan Chen do research?
Dmand AI links 6 publications to Dr. Chen, published from 2018 to 2020.
Who does Dr. Alan Chen publish with?
Dr. Chen's most frequent co-authors are Amol Agarwal, MD (2 shared papers), Jacob Eugene Sunshine, MD (2 shared papers) and Paul J. Thuluvath, MD (2 shared papers).
Selling to gastroenterology practices?
See gastroenterologists in Maryland by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card