Dr. Thomas Ngoc Phan, MD
- Part D claims, 2024
- 16
- Industry payments
- $217
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 1640 Newport Blvd, Costa Mesa, CA 92627
- Practice phone
- Call (949) 309-3330
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
American Surgical Center-OC
Costa Mesa, California
Find Dr. Phan'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. Thomas Ngoc Phan is a psychiatrist in Costa Mesa, California
Dr. Phan practices at American Surgical Center-OC in Costa Mesa, California.
Dr. Phan's NPI, 1740716687, was assigned on May 11, 2017. Dr. Phan holds California license A170266.
- NPI
- 1740716687NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507386000
- NPI enumeration date
- May 11, 2017
- NPI status
- Active
- Practice phone
- (949) 309-3330
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Thomas Ngoc Phan practices at American Surgical Center-OC in Costa Mesa, California
Dr. Phan's primary practice is American Surgical Center-OC, at 1640 Newport Blvd, Costa Mesa, CA 92627 in Orange County. The practice phone is (949) 309-3330.
- American Surgical Center-OC1640 Newport Blvd, Costa Mesa, CA 92627 · Orange CountyPhone(949) 309-3330
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Thomas Ngoc Phan is affiliated with 2 sites of care and 1 medical group
Dr. Phan's primary practice is American Surgical Center-OC in Costa Mesa, California. The medical group on file is LifeStance Health. Dmand AI also links Dr. Phan to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Thomas Ngoc Phan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| American Surgical Center-OC | 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. Thomas Ngoc Phan is one of 6,803 psychiatrists in California
Psychiatry is Dr. Phan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Phan's licenses on file in 2 states: California and Texas.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Texas license
Psychiatrists near Dr. Phan
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. Thomas Ngoc Phan's patients have a median age of 37
Across all payers, Dmand AI patient panel data puts Dr. Phan's median patient age at 37, with 43% women.
Dr. Phan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women43%
- Men54%
Source: Dmand AI Patient Panel Data
Dr. Thomas Ngoc Phan wrote 16 Medicare Part D claims in 2024
In 2024, Dr. Phan wrote 16 Medicare Part D claims. 100% of them were for generic drugs. They cover 3 drugs, with $140 in total drug cost. In 2020, CMS named 800 claims across 25 drugs.
Dr. Phan's most prescribed drugs by claims, 2022
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, 2020 to 2022
- 2020
- 2022
- Claims for drugs CMS names
- 2020: 8002022: 3696%
Drugs named by CMS: 3 in 2022, 25 in 2020.
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
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Dr. Thomas Ngoc Phan received $217 in industry payments from 2018 to 2025
CMS Open Payments shows 4 general payments to Dr. Phan from 3 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Foundation Medicine, Inc. paid the most, $146.
General payments to Dr. Phan by program year, 2018 to 2025
Companies that paid Dr. Phan the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas Ngoc Phan'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) |
| Industry payments | Open Payments (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. Thomas Ngoc Phan
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. Thomas Ngoc Phan's NPI number?
Dr. Thomas Ngoc Phan's NPI number is 1740716687. It was assigned on May 11, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Ngoc Phan?
Dr. Thomas Ngoc Phan is a psychiatrist in Costa Mesa, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Thomas Ngoc Phan practice?
Dr. Phan practices at 1640 Newport Blvd, Costa Mesa, CA 92627. Dr. Phan's primary practice is American Surgical Center-OC in Costa Mesa, California. Dmand AI also links Dr. Phan to 1 group practice or clinic.
What is Dr. Thomas Ngoc Phan's office phone number?
The practice phone on file for Dr. Phan is (949) 309-3330.
What is Dr. Thomas Ngoc Phan's medical license number?
Dr. Phan holds California license A170266, one of the licenses on file in 2 states.
Which states has Dr. Thomas Ngoc Phan been licensed in?
Dmand AI has state licenses on file for Dr. Phan in California and Texas.
What medical group is Dr. Thomas Ngoc Phan part of?
Dr. Phan is linked to LifeStance Health.
What drugs does Dr. Thomas Ngoc Phan prescribe most?
In 2022 Medicare Part D data, Dr. Phan's most prescribed drugs by claims were Dextroamphetamine-Amphetamine, Alprazolam and Zolpidem Tartrate.
Has Dr. Thomas Ngoc Phan received payments from drug or device companies?
CMS Open Payments shows $217 in general payments to Dr. Phan from 3 companies from 2018 to 2025. The largest total came from Foundation Medicine, Inc.
How long has Dr. Thomas Ngoc Phan been practicing?
Dr. Phan graduated from medical school in 2017, 9 years ago.
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