Steve Theodore Matthews, DO
Psychiatry Physician · Port Jefferson, NY
Steve Theodore Matthews, DO is a psychiatry physician with a practice address in Port Jefferson, New York, and NPI 1457938664, issued on Mar 24, 2021. Check the license (New York 335000, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Steve Theodore Matthews
- Credential
- DO
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 335000 NY
Self-reported in NPPES; status is on the state search - Practice location
- 75 N Country RD, Port Jefferson, NY 11777
- Phone
- (631) 686-2518
- Enumerated
- Mar 24, 2021
- Record last updated
- Jun 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20250710003758); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2021
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 6,589 in New York → Look up another NPI →
Also registered at 75 N Country RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarmad Al Obaidi, MDStudent in an Organized Health Care Education/Training Program1780387662
- Shabab Ali, MDStudent in an Organized Health Care Education/Training Program1497694962
Verify Steve Theodore Matthews in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 335000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average psychiatry physician in 2024
247 Medicare Part D claims for 25 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Aripiprazole24 claims
- Divalproex Sodium Er23 claims
- Venlafaxine Hcl Er19 claims
- Quetiapine Fumarate17 claims
- Olanzapine16 claims
- Lamotrigine12 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
- John T Mather Memorial HospitalPort Jefferson, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steve Theodore Matthews among 6,589 psychiatry physician records in New York
Steve Theodore Matthews, DO is one of 6,589 psychiatry physician records with a practice address in New York. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2021 · median 2002 among the 2,559 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 psychiatry physician records list a practice address in Port Jefferson
They are 27 of the 983 NPPES records with a practice address in Port Jefferson, and 6,589 psychiatry physician records in New York.
All 6,589 in New York → Every provider in Port Jefferson → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Anthony Bolton, PHDPort Jefferson, NY 117771275653032
- George Fairey, MDPort Jefferson, NY 117771780857276
- Rena Ferguson, MDPort Jefferson, NY 117771013082452
- Paul Fritz, MDPort Jefferson, NY 117771205989761
- Jagdish Gidwani, M.D.Port Jefferson, NY 117771962557629
- Syed Hussaini, M.DPort Jefferson, NY 117771437316148
- Alain KruhPort Jefferson, NY 117771982750469
- Marta Maczaj, M.D.Port Jefferson, NY 117771780625681
Common questions
What is Steve Theodore Matthews, DO's NPI number?
Steve Theodore Matthews, DO's National Provider Identifier (NPI) is 1457938664, issued on Mar 24, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Steve Theodore Matthews, DO located?
The NPPES record lists a practice address at 75 N Country RD, Port Jefferson, NY, 11777. Phone: (631) 686-2518. Providers update this record themselves, so call before visiting.
How can I verify Steve Theodore Matthews, DO's license?
NPPES lists New York license number 335000, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steve Theodore Matthews, DO prescribe under Medicare Part D?
In 2024, Steve Theodore Matthews, DO had 247 Medicare Part D claims for 25 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.