Dr. Andrew Chen, DO
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 144
- Hospital affiliations
- 2
- Industry payments
- $4,452
- Medical group
- 1
- Practice address
- 101 E. Valencia Mesa Drive, Fullerton, CA 92835
- Practice phone
- Call (714) 578-8706
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St. Jude Medical Center - Unit
Acute Care Hospital-Unit · Fullerton, California
Find Dr. Chen's professional email, personal email and mobile number
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Dr. Andrew Chen is an anesthesiologist in Fullerton, California
Dr. Chen practices at St. Jude Medical Center - Unit in Fullerton, California.
Dr. Chen's NPI, 1922390244, was assigned on May 4, 2011. Dr. Chen graduated from Midwestern University College of Dental Medicine, Glendale in 2011. Dr. Chen holds California license 20A14050.
- NPI
- 1922390244NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365739380
- NPI enumeration date
- May 4, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 578-8706
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew Chen practices at St. Jude Medical Center - Unit in Fullerton, California
Dr. Chen's primary practice is St. Jude Medical Center - Unit, at 101 E. Valencia Mesa Drive, Fullerton, CA 92835 in Orange County. The practice phone is (714) 578-8706.
- St. Jude Medical Center - Unit101 E. Valencia Mesa Drive, Fullerton, CA 92835 · Orange CountyPhone(714) 578-8706
Source: Dmand AI Affiliation Data
Dr. Andrew Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is St. Jude Medical Center - Unit in Fullerton, California. Dr. Chen is also affiliated with Providence St. Jude Medical Center. The medical group on file is Allied Anesthesia Medical Group.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Andrew Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Jude Medical Center - Unit | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew 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 licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Chen
Counts of anesthesiologists 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. Andrew Chen billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. Chen across 2 procedure codes in 2024, for 144 Medicare patients. Medicare paid $2,052 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 122024: 138%
- Surgery
- 2023: 02024: 12
Dr. Chen compared with the California median for anesthesiologists, 2024
- Dr. Chen
- California median
- Medicare services
- 25vs 7265% below
- Medicare patients
- 144vs 143Close to median
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. Andrew Chen treated 144 Medicare patients in 2024, average age 75
CMS counts 144 Medicare patients who saw Dr. Chen in 2024. The largest group is 75 to 84, with 65 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 65, with 63% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women8156%
- Men6344%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes33%
- Ischemic heart disease33%
- Atrial fibrillation31%
- Chronic kidney disease26%
- Mood disorders26%
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 65
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Andrew 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)
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Dr. Andrew Chen received $4,452 in industry payments from 2017 to 2025
CMS Open Payments shows 111 general payments to Dr. Chen from 15 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $3,401.
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. Andrew Chen graduated from Midwestern University College of Dental Medicine, Glendale
Dr. Chen graduated from Midwestern University College of Dental Medicine, Glendale in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew 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 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) |
| 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. Andrew 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. Andrew Chen's NPI number?
Dr. Andrew Chen's NPI number is 1922390244. It was assigned on May 4, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew Chen?
Dr. Andrew Chen is an anesthesiologist in Fullerton, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Andrew Chen practice?
Dr. Chen practices at 101 E. Valencia Mesa Drive, Fullerton, CA 92835. Dr. Chen's primary practice is St. Jude Medical Center - Unit in Fullerton, California.
What is Dr. Andrew Chen's office phone number?
The practice phone on file for Dr. Chen is (714) 578-8706.
What is Dr. Andrew Chen's medical license number?
Dr. Chen holds California license 20A14050.
Which hospitals is Dr. Andrew Chen affiliated with?
Dr. Chen is affiliated with Providence St. Jude Medical Center. Dmand AI links Dr. Chen to 1 more hospital.
What medical group is Dr. Andrew Chen part of?
Dr. Chen is linked to Allied Anesthesia Medical Group.
Does Dr. Andrew Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 25 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Andrew Chen see?
CMS counts 144 Medicare patients who saw Dr. Chen in 2024, with an average age of 75.
What services does Dr. Andrew Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were anesthesia (00731) and surgery: brain, spine and nerves (62322).
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Where did Dr. Andrew Chen go to medical school?
Dr. Chen graduated from Midwestern University College of Dental Medicine, Glendale in 2011.
Has Dr. Andrew Chen received payments from drug or device companies?
CMS Open Payments shows $4,452 in general payments to Dr. Chen from 15 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Andrew Chen been practicing?
Dr. Chen graduated from medical school in 2011, 15 years ago.
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