Tahsin Hasan, M.D.
NPI 1366821621 · Behavioral Neurology & Neuropsychiatry Physician · Stony Brook, NY
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tahsin Hasan, M.D. is a Behavioral Neurology & Neuropsychiatry Physician provider in Stony Brook, NY (NPI 1366821621).
Provider details
- NPI number
- 1366821621
- Entity type
- Individual
- Primary specialty
- Behavioral Neurology & Neuropsychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 301376 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-20
- Last updated
- 2020-02-21
- Certified
- 2020-02-21
Frequently asked questions
- What is Tahsin Hasan's NPI number?
- Tahsin Hasan's National Provider Identifier (NPI) is 1366821621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tahsin Hasan's specialty?
- Tahsin Hasan is listed in the NPPES registry with a primary specialty of Behavioral Neurology & Neuropsychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Tahsin Hasan located?
- Tahsin Hasan's practice location on file with NPPES is Putnam Hall South Campus, Stony Brook, NY 11794-2412.
- What is Tahsin Hasan's phone number?
- The practice phone number listed in the NPPES registry for Tahsin Hasan is (631) 632-3106.
- Does Tahsin Hasan accept Medicare?
- Tahsin Hasan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tahsin Hasan's NPI active?
- Yes — Tahsin Hasan's NPI (1366821621) is active in the NPPES registry as of the last update on 2020-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.