Thaddeaus Samuel Foster
Psychiatry Physician · New Castle, DE
Thaddeaus Samuel Foster is a psychiatry physician with a practice address in New Castle, Delaware, and NPI 1871159475, issued on May 20, 2019. Check the license on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Thaddeaus Samuel Foster
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 0101278017 VA
Self-reported in NPPES; status is on the state search - Practice location
- 1901 N Dupont Hwy, New Castle, DE 19720
- Phone
- (302) 255-2700
- Enumerated
- May 20, 2019
- Record last updated
- Jul 31, 2023
- Medicare enrollment
- Enrolled (PECOS I20231104000396); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 2017
- Entity
- Type 1 · individual
Also registered at 1901 N Dupont Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadeem Afzal, M.DPsychiatry Physician1043525827
- Mohammed Ahmed, MDStudent in an Organized Health Care Education/Training Program1407658792
- Uzma AnsariPsychiatry Physician1326778820
- Taurai AugustinStudent in an Organized Health Care Education/Training Program1740074921
- Jennifer Brown, PMHNPPsychiatric/Mental Health Nurse Practitioner1023841335
- Abby ChainaniPsychiatry Physician1821583311
Verify Thaddeaus Samuel Foster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and DisciplineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average psychiatry physician in 2024
816 Medicare Part D claims for 126 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Quetiapine Fumarate50 claims
- Buspirone Hcl47 claims
- Duloxetine Hcl47 claims
- Sertraline Hcl42 claims
- Bupropion Xl37 claims
- Alprazolam36 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
26 psychiatry physician records list a practice address in New Castle
They are 26 of the 766 NPPES records with a practice address in New Castle, and 162 psychiatry physician records in Delaware.
All 26 in New Castle → All 162 in Delaware → Every provider in New Castle →
Other psychiatry physician records in Delaware
- Jane AbionaCamden, DE1447064951
- Omopariola Adegbola, MDWilmington, DE1255616397
- Nadeem Afzal, M.DNew Castle, DE1043525827
- Vishesh Agarwal, M.D.Wilmington, DE1609163971
- Anis Ahmed, MDMillsboro, DE1407877202
- Uzma AnsariNew Castle, DE1326778820
- Constantine Azarcon, M.D.Wilmington, DE1407998040
- Robert Bahnsen, M.D.Wilmington, DE1154697316
- Melody Benson, M.D.Lewes, DE1811080237
- Bruce Berg, M.D.Wilmington, DE1932279718
Common questions
What is Thaddeaus Samuel Foster's NPI number?
Thaddeaus Samuel Foster's National Provider Identifier (NPI) is 1871159475, issued on May 20, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Thaddeaus Samuel Foster located?
The NPPES record lists a practice address at 1901 N Dupont Hwy, New Castle, DE, 19720. Phone: (302) 255-2700. Providers update this record themselves, so call before visiting.
How can I verify Thaddeaus Samuel Foster's license?
Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thaddeaus Samuel Foster prescribe under Medicare Part D?
In 2024, Thaddeaus Samuel Foster had 816 Medicare Part D claims for 126 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.