Dr. Alexander Anthony Thomas, MD
- Part D claims, 2024
- 153
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 3100 Oak Rd Suite 270 Suite 270, Walnut Creek, CA 94597-2078
- 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 (Oak Rd)
Behavioral health practice · Walnut Creek, California
Find Dr. Thomas' 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. Alexander Anthony Thomas is a psychiatrist in Riverside, California
Dr. Thomas practices at Comprehensive Psychiatric Services A Medical Group - Walnut Creek (Oak Rd) in Walnut Creek, California.
Dr. Thomas' NPI, 1710567979, was assigned on April 12, 2021. Dr. Thomas holds California license 1710567979.
- NPI
- 1710567979NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4183195761
- NPI enumeration date
- April 12, 2021
- NPI status
- Active
- Practice phone
- (925) 944-9711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Anthony Thomas practices in Walnut Creek and Riverside
Dr. Thomas' primary practice is Comprehensive Psychiatric Services A Medical Group - Walnut Creek (Oak Rd), at 3100 Oak Rd Suite 270 Suite 270, Walnut Creek, CA 94597-2078. The practice phone is (925) 944-9711. The NPI Registry lists Dr. Thomas' practice address as 3390 University Ave, Riverside, CA 92501.
- Comprehensive Psychiatric Services A Medical Group - Walnut Creek (Oak Rd)Primary3100 Oak Rd Suite 270 Suite 270, Walnut Creek, CA 94597-2078Phone(925) 944-9711
- NPI Registry address3390 University Ave, Riverside, CA 92501 · Riverside CountyPhone(415) 314-0677
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Alexander Anthony Thomas is affiliated with 1 site of care and 1 medical group
Dr. Thomas' primary practice is Comprehensive Psychiatric Services A Medical Group - Walnut Creek (Oak Rd) in Walnut Creek, California. The medical group on file is Comprehensive Psychiatric Services.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Alexander Anthony Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Comprehensive Psychiatric Services A Medical Group - Walnut Creek (Oak Rd) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander Anthony Thomas is one of 6,803 psychiatrists in California
Psychiatry is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Thomas is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Thomas
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. Alexander Anthony Thomas' patients have a median age of 35
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 35, with 51% women.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women51%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Alexander Anthony Thomas wrote 153 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 153 Medicare Part D claims for 14 patients. 100% of them were for generic drugs. CMS names the drug for 117 of them, across 6 drugs with 11 or more claims each, at $1,700 in total drug cost.
Dr. Thomas' 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.
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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Alexander Anthony Thomas'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| 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. Alexander Anthony Thomas
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. Alexander Anthony Thomas' NPI number?
Dr. Alexander Anthony Thomas' NPI number is 1710567979. It was assigned on April 12, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Anthony Thomas?
Dr. Alexander Anthony Thomas is a psychiatrist in Riverside, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Alexander Anthony Thomas practice?
Dr. Thomas practices at 3100 Oak Rd Suite 270 Suite 270, Walnut Creek, CA 94597-2078. Dr. Thomas also practices at 3390 University Ave, Riverside, CA 92501. Dr. Thomas' primary practice is Comprehensive Psychiatric Services A Medical Group - Walnut Creek (Oak Rd) in Walnut Creek, California.
What is Dr. Alexander Anthony Thomas' office phone number?
The practice phone on file for Dr. Thomas is (925) 944-9711.
What is Dr. Alexander Anthony Thomas' medical license number?
Dr. Thomas holds California license 1710567979.
What medical group is Dr. Alexander Anthony Thomas part of?
Dr. Thomas is linked to Comprehensive Psychiatric Services.
What drugs does Dr. Alexander Anthony Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Trazodone HCl, Bupropion XL and Escitalopram Oxalate.
How long has Dr. Alexander Anthony Thomas been practicing?
Dr. Thomas' NPI was assigned in 2021.
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