NPPES file of Aug 9, 2026

Jamie Olschewski, MD

Psychiatry Physician · Port Jefferson, NY

Jamie Olschewski, MD is a psychiatry physician with a practice address in Port Jefferson, New York, and NPI 1245790468, issued on Mar 22, 2019. Check the license 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
1245790468
Name
Jamie Olschewski
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
25MA11810600 NJ
Self-reported in NPPES; status is on the state search
Practice location
75 N Country RD, Port Jefferson, NY 11777
Phone
(631) 473-1320
Enumerated
Mar 22, 2019
Record last updated
Oct 25, 2023
Medicare enrollment
Enrolled (PECOS I20231227000145); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 75 N Country RD

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

  1. Yasser Abdelbaki, M.D.Internal Medicine Physician1790149771
  2. Omar Ahmad, MDInternal Medicine Physician1043531254
  3. Mohamed AhmedPsychiatry Physician1912534652
  4. Fareeha Ajmal, DOHospitalist Physician1285375675
  5. Sarmad Al Obaidi, MDStudent in an Organized Health Care Education/Training Program1780387662
  6. Shabab Ali, MDStudent in an Organized Health Care Education/Training Program1497694962

Verify Jamie Olschewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck 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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53% fewer Medicare Part D claims than the average psychiatry physician in 2024

470 Medicare Part D claims for 75 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Jamie Olschewski470
  2. Specialty average1,000

Most prescribed

  1. Risperidone38 claims
  2. Trazodone Hcl24 claims
  3. Olanzapine22 claims
  4. Albuterol Sulfate Hfa16 claims
  5. Oxcarbazepine15 claims
  6. Quetiapine Fumarate15 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: $395.26

22 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, 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. Jamie Olschewski$395.26
  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. New Jersey Behavioral Health PCPrinceton Junction, NJ

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

Jamie Olschewski among 6,589 psychiatry physician records in New York

Jamie Olschewski, 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 2019, is newer than 88% of them.

  • NPI issued2019 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2018 · median 2002 among the 2,559 with a school on file
  • Record last updated2023 · 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.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Anthony Bolton, PHDPort Jefferson, NY 117771275653032
  2. George Fairey, MDPort Jefferson, NY 117771780857276
  3. Rena Ferguson, MDPort Jefferson, NY 117771013082452
  4. Paul Fritz, MDPort Jefferson, NY 117771205989761
  5. Jagdish Gidwani, M.D.Port Jefferson, NY 117771962557629
  6. Syed Hussaini, M.DPort Jefferson, NY 117771437316148
  7. Alain KruhPort Jefferson, NY 117771982750469
  8. Marta Maczaj, M.D.Port Jefferson, NY 117771780625681

Common questions

What is Jamie Olschewski, MD's NPI number?

Jamie Olschewski, MD's National Provider Identifier (NPI) is 1245790468, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Jamie Olschewski, MD located?

The NPPES record lists a practice address at 75 N Country RD, Port Jefferson, NY, 11777. Phone: (631) 473-1320. Providers update this record themselves, so call before visiting.

How can I verify Jamie Olschewski, MD's license?

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 Jamie Olschewski, MD prescribe under Medicare Part D?

In 2024, Jamie Olschewski, MD had 470 Medicare Part D claims for 75 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.