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Dr. Mark T. Chen, DO
NPI1568417152PAC ID9739197237
- Medicare services, 2024
- 27
- Medicare patients, 2024
- 97
- Publications
- 1
- Hospital affiliations
- 3
- Industry payments
- $383
- Practice address
- 999 San Bernardino Road, Upland, CA 91786
- Practice phone
- Call (909) 985-2811
- 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
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. Mark T. Chen is an anesthesiologist in Upland, California
Dr. Chen practices at San Antonio Regional Hospital in Upland, California, part of San Antonio Regional Hospital.
Dr. Chen's NPI, 1568417152, was assigned on May 23, 2006. Dr. Chen graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1985. Dr. Chen holds California license 20A5641.
NPI and contact details
- NPI
- 1568417152NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739197237
- NPI enumeration date
- May 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 985-2811
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark T. Chen practices at San Antonio Regional Hospital in Upland, California
Dr. Chen's primary practice is San Antonio Regional Hospital, at 999 San Bernardino Road, Upland, CA 91786 in San Bernardino County. The practice phone is (909) 985-2811.
- San Antonio Regional Hospital999 San Bernardino Road, Upland, CA 91786 · San Bernardino CountyPhone(909) 985-2811
Source: Dmand AI Affiliation Data
Dr. Mark T. Chen is affiliated with 3 sites of care and 2 medical groups
Dr. Chen's primary practice is San Antonio Regional Hospital in Upland, California, part of San Antonio Regional Hospital. Dr. Chen is also affiliated with Casa Colina Hospital and Centers for Healthcare. The medical group on file is Allied Anesthesia Medical Group. Dmand AI also links Dr. Chen to 1 more hospital and 1 medical group, each named with a free account.
Casa Colina Hospital and Centers for HealthcareAllied Anesthesia Medical Group1 hospitalName with a free account1 medical groupName with a free account
See all 5 affiliations for Dr. ChenSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark T. 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 |
|---|---|
| San Antonio Regional Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Mark T. Chen is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Chen is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Chen's licenses on file in 6 states: California, Arizona, Ohio, Kentucky, Missouri and Washington.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- Arizona license
- Ohio license
- Kentucky license
- Missouri license
- Washington license
Anesthesiologists near Dr. Chen
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
6,593anesthesiologists in California26anesthesiologists in Upland20anesthesiologists at San Antonio Regional Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark T. Chen billed Medicare for 27 services in 2024
CMS data shows 27 Medicare services from Dr. Chen across 2 procedure codes in 2024, for 97 Medicare patients. Medicare paid $4,411 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202427
Medicare patients97
Paid by Medicare$4,411
Procedure codes2
Dr. Chen's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Surgery
- 2022: 02024: 14
- Anesthesia
- 2022: 02024: 13
- Imaging
- 2022: 152024: 0100%
Dr. Chen compared with the California median for anesthesiologists, 2024
- Dr. Chen
- California median
- Medicare services
- 27vs 7263% below
- Medicare patients
- 97vs 14332% below
Medians across 5,562 anesthesiologists in California 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 anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark T. Chen treated 97 Medicare patients in 2024, average age 72
CMS counts 97 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 47% are also on Medicaid. Their average risk score is 2.29, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 63, with 55% women.
Medicare patients, 202497
Average age72
Average risk score2.29
Also on Medicaid47%
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women5557%
- Men4243%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Diabetes58%
- Ischemic heart disease41%
- Mood disorders40%
- Depression36%
- Heart failure33%
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 63
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Mark T. Chen takes part in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find anesthesiologists 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. Mark T. Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen in 2013. Dr. Chen's most frequent co-author is Mark Z. Chen, MD.
Papers1
Dr. Chen's most frequent co-authors
Recent publications by Dr. Chen
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 anesthesiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark T. Chen received $383 in industry payments from 2016 to 2024
CMS Open Payments shows 8 general payments to Dr. Chen from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Masimo Corporation paid the most, $90.
General payments to Dr. Chen by program year, 2016 to 2024
Companies that paid Dr. Chen the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark T. Chen graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine
Dr. Chen graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1985.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Mark T. Chen accepts plans from 6 insurance carriers
Dr. Chen is in network with 6 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
- Cigna
- CMS Medicare
Plan types Dr. Chen accepts, by number of carriers
- Medicare5
- PPO5
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark T. 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Mark T. 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. Mark T. Chen's NPI number?
Dr. Mark T. Chen's NPI number is 1568417152. It was assigned on May 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark T. Chen?
Dr. Mark T. Chen is an anesthesiologist in Upland, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Mark T. Chen practice?
Dr. Chen practices at 999 San Bernardino Road, Upland, CA 91786. Dr. Chen's primary practice is San Antonio Regional Hospital in Upland, California, part of San Antonio Regional Hospital. Dmand AI also links Dr. Chen to 1 hospital and 1 medical group.
What is Dr. Mark T. Chen's office phone number?
The practice phone on file for Dr. Chen is (909) 985-2811.
What is Dr. Mark T. Chen's medical license number?
Dr. Chen holds California license 20A5641, one of the licenses on file in 6 states.
Which states has Dr. Mark T. Chen been licensed in?
Dmand AI has state licenses on file for Dr. Chen in California (1988 to 2027), Arizona (1998 to 2027), Ohio (1990 to 2027), Kentucky (1992 to 2026), Missouri (1986 to 2026) and Washington (1988 to 2026).
Which hospitals is Dr. Mark T. Chen affiliated with?
Dr. Chen practices at San Antonio Regional Hospital in Upland, California. Dr. Chen is also affiliated with Casa Colina Hospital and Centers for Healthcare. Dmand AI links Dr. Chen to 1 more hospital.
What medical group is Dr. Mark T. Chen part of?
Dr. Chen is linked to Allied Anesthesia Medical Group. Dmand AI links Dr. Chen to 1 more medical group.
Does Dr. Mark T. Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 27 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Mark T. Chen see?
CMS counts 97 Medicare patients who saw Dr. Chen in 2024, with an average age of 72.
Show 8 more questionsShow fewer questions
Is Dr. Mark T. Chen board certified?
Yes. Dr. Chen is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Mark T. Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were surgery: brain, spine and nerves (62322) and anesthesia (00790).
Where did Dr. Mark T. Chen go to medical school?
Dr. Chen graduated from Kansas City University of Medicine and Biosciences College of Osteopathic Medicine in 1985.
Has Dr. Mark T. Chen received payments from drug or device companies?
CMS Open Payments shows $383 in general payments to Dr. Chen from 7 companies from 2016 to 2024. The largest total came from Masimo Corporation.
How long has Dr. Mark T. Chen been practicing?
Dr. Chen graduated from medical school in 1985, 41 years ago.
Does Dr. Mark T. Chen do research?
Dmand AI links 1 publication to Dr. Chen.
Who does Dr. Mark T. Chen publish with?
Dr. Chen's most frequent co-authors are Mark Z. Chen, MD (1 shared paper).
What insurance does Dr. Mark T. Chen accept?
Dr. Chen is in network with 6 carriers, including Blue Cross Blue Shield of Massachusetts, Blue Cross Blue Shield of Michigan and HCSC. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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