Sean Elliot Oldak
Psychiatry Physician · Boston, MA
Sean Elliot Oldak is a psychiatry physician with a practice address in Boston, Massachusetts, and NPI 1104486372, issued on Jun 19, 2019. Check the license (Massachusetts 1022913, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sean Elliot Oldak
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 1022913 MA
HS000239L PA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (305) 761-7325
- Enumerated
- Jun 19, 2019
- Record last updated
- Jun 23, 2025
- Medicare enrollment
- Enrolled (PECOS I20250617000516); accepts Medicare assignment
- Medical or professional school
- University Of Miami, Lm Miller School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Sean Elliot Oldak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1022913Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average psychiatry physician in 2024
264 Medicare Part D claims for 26 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.
Most prescribed
- Aripiprazole31 claims
- Risperidone29 claims
- Fluvoxamine Maleate24 claims
- Divalproex Sodium22 claims
- Escitalopram Oxalate20 claims
- Lithium Carbonate16 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: $29.54
1 payment: food and beverage; the largest payer was Biogen, 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.
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
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean Elliot Oldak among 2,736 psychiatry physician records in Massachusetts
Sean Elliot Oldak is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% 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 89% of them.
- NPI issued2019 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2019 · median 2005 among the 1,219 with a school on file
- Record last updated2025 · 62% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
845 psychiatry physician records list a practice address in Boston
They are 845 of the 41,865 NPPES records with a practice address in Boston, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Boston → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Jay Baer, MDBoston, MA 021151427014323
- Susan Block, MDBoston, MA 021151083681563
- Ilana Braun, M.D.Boston, MA 021151760443006
- Alison Fife, MDBoston, MA 021151477545143
- Melissa Frumin, MD MSBoston, MA 021151659337871
- David Gitlin, MDBoston, MA 021151720078967
- Randy Glassman, MDBoston, MA 021151316937543
- Christine Kim, MDBoston, MA 021151942266283
Common questions
What is Sean Elliot Oldak's NPI number?
Sean Elliot Oldak's National Provider Identifier (NPI) is 1104486372, issued on Jun 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sean Elliot Oldak located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (305) 761-7325. Providers update this record themselves, so call before visiting.
How can I verify Sean Elliot Oldak's license?
NPPES lists Massachusetts license number 1022913, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sean Elliot Oldak prescribe under Medicare Part D?
In 2024, Sean Elliot Oldak had 264 Medicare Part D claims for 26 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.