Thomas Chi, PA-C
- Medicare patients, 2024
- 108
- Part D claims, 2024
- 88
- MIPS score, 2024
- 97
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 400 North Pepper Avenue, Colton, CA 92324
- Practice phone
- Call (909) 580-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Thomas Chi'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.
Thomas Chi is a physician assistant in Colton, California
Thomas Chi practices at Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County.
Thomas Chi's NPI, 1497220768, was assigned on October 12, 2018.
- NPI
- 1497220768NPI Registry (opens in a new tab)
- NPI enumeration date
- October 12, 2018
- NPI status
- Active
- Practice phone
- (909) 580-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Thomas Chi practices at Arrowhead Regional Medical Center in Colton, California
Thomas Chi's primary practice is Arrowhead Regional Medical Center, at 400 North Pepper Avenue, Colton, CA 92324 in San Bernardino County. The practice phone is (909) 580-1000.
- Arrowhead Regional Medical Center400 North Pepper Avenue, Colton, CA 92324 · San Bernardino CountyPhone(909) 580-1000
Source: Dmand AI Affiliation Data
Thomas Chi is affiliated with 1 site of care and 3 medical groups
Thomas Chi's primary practice is Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County. The medical group on file is Vituity. Dmand AI also links Thomas Chi to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Thomas Chi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Chi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arrowhead Regional Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Thomas Chi is one of 11,482 physician assistants in California
Physician assistant is Thomas Chi's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Thomas Chi
Counts of physician assistants 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
Thomas Chi treated 108 Medicare patients in 2024, average age 62
CMS counts 108 Medicare patients who saw Thomas Chi in 2024. The largest group is 65 to 74, with 49 patients. 75% of them have high blood pressure, and 58% have high cholesterol. 85% are also on Medicaid. Their average risk score is 2.23, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Thomas Chi's median patient age at 36, with 50% women.
Thomas Chi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Thomas Chi's Medicare patients by sex, 2024
- Women5955%
- Men4945%
Chronic conditions among Thomas Chi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol58%
- Arthritis44%
- Diabetes44%
- Mood disorders43%
- Anxiety39%
- Alcohol and drug use disorders34%
- Tobacco use33%
Share of Medicare patients with each condition. A patient can have several.
Thomas Chi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Thomas Chi wrote 88 Medicare Part D claims in 2024
In 2024, Thomas Chi wrote 88 Medicare Part D claims for 64 patients. 95% of them were for generic drugs.
Thomas Chi's Part D claims by kind of drug, 2024
- Generic84 claims95%
- Brand-name and other4 claims5%
Drug classes CMS tracks in Thomas Chi's Part D claims, 2024
- Antibiotics45%40 of 88 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Thomas Chi scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Thomas Chi for performance year 2024, reported as part of a group.
Thomas Chi's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Thomas Chi'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 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 (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (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 Thomas Chi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Thomas Chi's NPI number?
Thomas Chi's NPI number is 1497220768. It was assigned on October 12, 2018, and it is active in the NPI Registry.
What does Thomas Chi specialize in?
Thomas Chi is a physician assistant in Colton, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Thomas Chi practice?
Thomas Chi practices at 400 North Pepper Avenue, Colton, CA 92324. Thomas Chi's primary practice is Arrowhead Regional Medical Center in Colton, California, part of San Bernardino County. Dmand AI also links Thomas Chi to 2 medical groups.
What is Thomas Chi's office phone number?
The practice phone on file for Thomas Chi is (909) 580-1000.
Which hospitals is Thomas Chi affiliated with?
Thomas Chi practices at Arrowhead Regional Medical Center in Colton, California.
What medical group is Thomas Chi part of?
Thomas Chi is linked to Vituity. Dmand AI links Thomas Chi to 2 more medical groups.
What is Thomas Chi's MIPS score?
Thomas Chi's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Thomas Chi see?
CMS counts 108 Medicare patients who saw Thomas Chi in 2024, with an average age of 62.
How long has Thomas Chi been practicing?
Thomas Chi's NPI was assigned in 2018.
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