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Dr. Thomas C. Lester, MD
NPI1558685859
- Part D claims, 2024
- 74
- Publications
- 2
- Clinical trials
- 1
- Industry payments
- $1,879
- Insurance carriers
- 2
- Practice address
- 18785 Brookhurst St, Fountain Valley, CA 92708
- Practice phone
- Call (714) 404-7935
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Lester'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 C. Lester is a psychiatrist in Fountain Valley, California
Dr. Lester practices in Fountain Valley, California.
Dr. Lester's NPI, 1558685859, was assigned on March 16, 2010. Dr. Lester graduated from University of Missouri School of Medicine in 1976. Dr. Lester holds California license G34679.
NPI and contact details
- NPI
- 1558685859NPI Registry (opens in a new tab)
- NPI enumeration date
- March 16, 2010
- NPI status
- Active
- Practice phone
- (714) 404-7935
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Thomas C. Lester's practice address is in Fountain Valley, California
Dr. Lester's practice address in the NPI Registry is 18785 Brookhurst St, Fountain Valley, CA 92708, in Orange County. The practice phone is (714) 404-7935.
- NPI Registry address18785 Brookhurst St, Fountain Valley, CA 92708 · Orange CountyPhone(714) 404-7935
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Thomas C. Lester's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lester practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Lester's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas C. Lester is one of 6,803 psychiatrists in California
Psychiatry is Dr. Lester's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Lester is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Lester is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Lester
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
6,803psychiatrists in California
2psychiatrists in Fountain Valley
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas C. Lester's patients have a median age of 35
Across all payers, Dmand AI patient panel data puts Dr. Lester's median patient age at 35, with 67% women.
Dr. Lester's 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
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Thomas C. Lester wrote 74 Medicare Part D claims in 2024
In 2024, Dr. Lester wrote 74 Medicare Part D claims. 92% of them were for generic drugs. CMS names the drug for 31 of them, across 2 drugs with 11 or more claims each, at $315 in total drug cost. In 2020, CMS named 29 claims across 2 drugs.
Part D claims, 202474
Drugs named by CMS2
Total drug cost$315
Dr. Lester's Part D claims by kind of drug, 2024
- Generic68 claims92%
- Brand-name and other6 claims8%
Dr. Lester'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, 2020 to 2024
- 2020
- 2024
- Claims for drugs CMS names
- 2020: 292024: 317%
Drugs named by CMS: 2 in 2024, 2 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 C. Lester has 2 publications on record
Dmand AI links 2 papers to Dr. Lester, published from 2012 to 2016. Dr. Lester's most frequent co-authors are Patricia Irene Dickson, MD, Sridharan Gururangan, MD and Daniel A. Lim, MD, PhD.
Papers2
Years published2012 to 2016
Dr. Lester's most frequent co-authors
- Patricia Irene Dickson, MD1 shared paper
- Sridharan Gururangan, MD1 shared paper
- Daniel A. Lim, MD, PhD1 shared paper
Recent publications by Dr. Lester
See who Dr. Lester researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lester 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. Thomas C. Lester has worked on 1 clinical trial
Dmand AI links Dr. Lester to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Cognitive Dysfunction and Cognition Disorders.
Conditions in Dr. Lester's trials
- Cognitive Dysfunction
- Cognition Disorders
Investigators on the most trials with Dr. Lester
- Dallal W. Abdelsayed, MD1 shared trial
- Ana M. Acosta, MD1 shared trial
- Marc Edward Agronin, MD1 shared trial
Recent clinical trials with Dr. Lester
A Study of Health Care Use and Costs in Participants With Early Stage Alzheimer's Disease (AD) (opens in a new tab)
Active, not recruiting
Cognitive DysfunctionCognition DisordersFlorbetapir F 18 PET Scan
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Thomas C. Lester received $1,879 in industry payments from 2016 to 2019
CMS Open Payments shows 17 general payments to Dr. Lester from 6 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 52% of the total. Allergan Inc. paid the most, $1,288.
General payments to Dr. Lester by program year, 2016 to 2019
General payments to Dr. Lester by kind, 2016 to 2019
$1.9Kin total
- Food and beverage$97652%
- Travel and lodging$90248%
Companies that paid Dr. Lester the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas C. Lester graduated from University of Missouri School of Medicine
Dr. Lester graduated from University of Missouri School of Medicine in 1976.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Thomas C. Lester accepts plans from 2 insurance carriers
Dr. Lester is in network with 2 carriers, including Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Lester accepts, by number of carriers
- Medicare2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas C. Lester'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 |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Thomas C. Lester
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 C. Lester's NPI number?
Dr. Thomas C. Lester's NPI number is 1558685859. It was assigned on March 16, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas C. Lester?
Dr. Thomas C. Lester is a psychiatrist in Fountain Valley, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Thomas C. Lester practice?
Dr. Lester practices at 18785 Brookhurst St, Fountain Valley, CA 92708.
What is Dr. Thomas C. Lester's office phone number?
The practice phone on file for Dr. Lester is (714) 404-7935.
What is Dr. Thomas C. Lester's medical license number?
Dr. Lester holds California license G34679.
Is Dr. Thomas C. Lester board certified?
Yes. Dr. Lester is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Thomas C. Lester go to medical school?
Dr. Lester graduated from University of Missouri School of Medicine in 1976.
What drugs does Dr. Thomas C. Lester prescribe most?
In 2024 Medicare Part D data, Dr. Lester's most prescribed drugs by claims were Bupropion XL and Trazodone HCl.
Has Dr. Thomas C. Lester received payments from drug or device companies?
CMS Open Payments shows $1,879 in general payments to Dr. Lester from 6 companies from 2016 to 2019. The largest total came from Allergan Inc.
How long has Dr. Thomas C. Lester been practicing?
Dr. Lester graduated from medical school in 1976, 50 years ago.
Show 3 more questionsShow fewer questions
Does Dr. Thomas C. Lester do research?
Dmand AI links 2 publications to Dr. Lester, published from 2012 to 2016. Dr. Lester has worked on 1 clinical trial.
Who does Dr. Thomas C. Lester publish with?
Dr. Lester's most frequent co-authors are Patricia Irene Dickson, MD (1 shared paper), Sridharan Gururangan, MD (1 shared paper) and Daniel A. Lim, MD, PhD (1 shared paper).
What insurance does Dr. Thomas C. Lester accept?
Dr. Lester is in network with 2 carriers, including Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.
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