AedesAnophelesArthropods
Dr. Anthony Christopher Choy, MD
NPI1649774423PAC ID3173975091
- Part D claims, 2024
- 83
- Publications
- 5
- Industry payments
- $241
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 3100 Oak Rd, Walnut Creek, CA 94597
- Practice phone
- Call (925) 944-9711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Comprehensive Psychiatric Services, a Medical Group
Walnut Creek, California
Find Dr. Choy'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. Anthony Christopher Choy is a psychiatrist in Walnut Creek, California
Dr. Choy practices at Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California.
Dr. Choy's NPI, 1649774423, was assigned on March 19, 2018. Dr. Choy graduated from Un of California, Riverside, School of Medicine in 2018. Dr. Choy holds California license A191847.
NPI and contact details
- NPI
- 1649774423NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173975091
- NPI enumeration date
- March 19, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 944-9711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Anthony Christopher Choy practices at Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California
Dr. Choy's primary practice is Comprehensive Psychiatric Services, a Medical Group, at 3100 Oak Rd, Walnut Creek, CA 94597 in Contra Costa County. The practice phone is (925) 944-9711.
- Comprehensive Psychiatric Services, a Medical Group3100 Oak Rd, Walnut Creek, CA 94597 · Contra Costa CountyPhone(925) 944-9711
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Anthony Christopher Choy is affiliated with 3 sites of care and 2 medical groups
Dr. Choy's primary practice is Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California. The medical group on file is Comprehensive Psychiatric Services. Dmand AI also links Dr. Choy to 2 more group practices and clinics and 1 medical group, each named with a free account.
Comprehensive Psychiatric Services, a Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Anthony Christopher Choy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Choy practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comprehensive Psychiatric Services, a Medical Group | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Anthony Christopher Choy is one of 6,803 psychiatrists in California
Psychiatry is Dr. Choy's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Choy's licenses on file in 3 states: California, North Carolina and Virginia.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- North Carolina license
- General practice, Virginia
Psychiatrists near Dr. Choy
Counts of psychiatrists 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. Anthony Christopher Choy's patients have a median age of 31
Across all payers, Dmand AI patient panel data puts Dr. Choy's median patient age at 31, with 47% women.
Dr. Choy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 31
Patient panel by sex, all payers
- Women47%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Anthony Christopher Choy wrote 83 Medicare Part D claims in 2024
In 2024, Dr. Choy wrote 83 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 40 of them, across 3 drugs with 11 or more claims each, at $356 in total drug cost. In 2021, CMS named 245 claims across 12 drugs.
Part D claims, 202483
Drugs named by CMS3
Total drug cost$356
Dr. Choy'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.
Part D claims for drugs CMS names, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 2452024: 4084%
Drugs named by CMS: 3 in 2024, 12 in 2021.
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
How Dr. Anthony Christopher Choy takes part in Medicare
Dr. Choy 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. Anthony Christopher Choy has 5 publications on record
Dmand AI links 5 papers to Dr. Choy, published from 2012 to 2013. 2013 was the busiest year, with 4. The most frequent topics are Signal Transduction, Anaplasma phagocytophilum and Arthropods. Dr. Choy has published most often in PLoS One. Dr. Choy's most frequent co-author is Fayyaz S. Sutterwala, MD, PhD.
Papers5
Years published2012 to 2013
Topics Dr. Choy writes about most
- Signal Transduction
- Anaplasma phagocytophilum
- Arthropods
- Ehrlichiosis
- Ixodes
- Macrophages
- Ubiquitination
- Ubiquitin-Protein Ligases
Dr. Choy's most frequent co-authors
Recent publications by Dr. Choy
Bacterial ToxinsCarrier ProteinsCaspase 1
Anaplasma phagocytophilumArachnid VectorsCatalytic Domain
ArthropodsMammalsProtein Processing, Post-Translational
Anaplasma phagocytophilumDihydrolipoamide DehydrogenaseEhrlichiosis
See who Dr. Choy researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Choy works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Anthony Christopher Choy received $241 in industry payments from 2021 to 2025
CMS Open Payments shows 4 general payments to Dr. Choy from 4 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Nuvasive, Inc. paid the most, $124.
General payments to Dr. Choy by program year, 2021 to 2025
Companies that paid Dr. Choy the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Anthony Christopher Choy graduated from Un of California, Riverside, School of Medicine
Dr. Choy graduated from Un of California, Riverside, School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Anthony Christopher Choy'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Anthony Christopher Choy
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. Anthony Christopher Choy's NPI number?
Dr. Anthony Christopher Choy's NPI number is 1649774423. It was assigned on March 19, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Anthony Christopher Choy?
Dr. Anthony Christopher Choy is a psychiatrist in Walnut Creek, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Anthony Christopher Choy practice?
Dr. Choy practices at 3100 Oak Rd, Walnut Creek, CA 94597. Dr. Choy's primary practice is Comprehensive Psychiatric Services, a Medical Group in Walnut Creek, California. Dmand AI also links Dr. Choy to 2 group practices and clinics and 1 medical group.
What is Dr. Anthony Christopher Choy's office phone number?
The practice phone on file for Dr. Choy is (925) 944-9711.
What is Dr. Anthony Christopher Choy's medical license number?
Dr. Choy holds California license A191847, one of the licenses on file in 3 states.
Which states has Dr. Anthony Christopher Choy been licensed in?
Dmand AI has state licenses on file for Dr. Choy in California, North Carolina and Virginia.
What medical group is Dr. Anthony Christopher Choy part of?
Dr. Choy is linked to Comprehensive Psychiatric Services. Dmand AI links Dr. Choy to 1 more medical group.
Does Dr. Anthony Christopher Choy accept Medicare?
Yes. CMS lists Dr. Choy as accepting Medicare assignment.
Where did Dr. Anthony Christopher Choy go to medical school?
Dr. Choy graduated from Un of California, Riverside, School of Medicine in 2018.
What drugs does Dr. Anthony Christopher Choy prescribe most?
In 2024 Medicare Part D data, Dr. Choy's most prescribed drugs by claims were Bupropion XL, Mirtazapine and Fluoxetine HCl.
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Has Dr. Anthony Christopher Choy received payments from drug or device companies?
CMS Open Payments shows $241 in general payments to Dr. Choy from 4 companies from 2021 to 2025. The largest total came from Nuvasive, Inc.
How long has Dr. Anthony Christopher Choy been practicing?
Dr. Choy graduated from medical school in 2018, 8 years ago.
Does Dr. Anthony Christopher Choy do research?
Dmand AI links 5 publications to Dr. Choy, published from 2012 to 2013.
Who does Dr. Anthony Christopher Choy publish with?
Dr. Choy's most frequent co-authors are Fayyaz S. Sutterwala, MD, PhD (1 shared paper).
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