NPPES file of Aug 9, 2026

Spiro Theoharakis, MD

Psychiatry Physician · Smithtown, NY

Spiro Theoharakis, MD is a psychiatry physician with a practice address in Smithtown, New York, and NPI 1124004056, issued on Dec 22, 2005. Check the license (New York 175445, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124004056
Name
Spiro Theoharakis
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
175445 NY
Self-reported in NPPES; status is on the state search
Practice location
50 Karl Ave, Smithtown, NY 11787
Phone
(631) 366-3600
Enumerated
Dec 22, 2005
Record last updated
Jul 3, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(631) 366-3667
Medicaid ID
01589399 NY
Medicare enrollment
Enrolled (PECOS I20040610001660); accepts Medicare assignment
Medical or professional school
Albany Medical College Of Union University, 1987
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 50 Karl Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Flo Marshak, LCSWClinical Social Worker1265405641

Verify Spiro Theoharakis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 175445
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.8 times the Medicare Part D claims of the average psychiatry physician in 2024

4,780 Medicare Part D claims for 410 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Spiro Theoharakis4,780
  2. Specialty average1,000

Most prescribed

  1. Risperidone333 claims
  2. Clonazepam232 claims
  3. Escitalopram Oxalate225 claims
  4. Olanzapine214 claims
  5. Divalproex Sodium Er209 claims
  6. Aripiprazole208 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.

Industry payments in 2024: $239.79

10 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Spiro Theoharakis$239.79
  2. Specialty average$4,954.93

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Long Island Select Healthcare, IncHauppauge, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Spiro Theoharakis among 6,589 psychiatry physician records in New York

Spiro Theoharakis, MD 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 97% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated1987 · median 2002 among the 2,559 with a school on file
  • Record last updated2008 · 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).

22 psychiatry physician records list a practice address in Smithtown

They are 22 of the 1,907 NPPES records with a practice address in Smithtown, and 6,589 psychiatry physician records in New York.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Devendra Amin, M.D.Smithtown, NY 117871780696914
  2. Thomas Aronson, MDSmithtown, NY 117871669400750
  3. Christopher Burke, M.D.Smithtown, NY 117871427099621
  4. Karin Burkhard, MDSmithtown, NY 117871013071323
  5. Robert Castroll, MDSmithtown, NY 117871407929003
  6. Ashvin Doshi, M.D.Smithtown, NY 117871477564268
  7. Shelley Epstein, MDSmithtown, NY 117871255407987
  8. Praful Joshi, MDSmithtown, NY 117871326059601

Common questions

What is Spiro Theoharakis, MD's NPI number?

Spiro Theoharakis, MD's National Provider Identifier (NPI) is 1124004056, issued on Dec 22, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Spiro Theoharakis, MD located?

The NPPES record lists a practice address at 50 Karl Ave, Smithtown, NY, 11787. Phone: (631) 366-3600. Providers update this record themselves, so call before visiting.

How can I verify Spiro Theoharakis, MD's license?

NPPES lists New York license number 175445, 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 Spiro Theoharakis, MD prescribe under Medicare Part D?

In 2024, Spiro Theoharakis, MD had 4,780 Medicare Part D claims for 410 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.