Dr. Mohamad A. Bahnassi, M.D.
Psychiatry (Psychiatry Physician)
Behavioral Healthcare Services, 435 Shrewsbury Street
Worcester, MA 01604
Who else practices at this address →
Worcester County includes primary care (3% of residents) and mental health (11% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 44
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 367
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Psychiatry Physician primary
MA license 59555 -
Addiction Medicine (Psychiatry & Neurology) Physician
MA license 59555
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Umass Memorial Health - Harrington Hospital Southbridge, MA
Medical groups
- Behavioral Healthcare Services (26 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 367
- Services billed
- 2,863
- Patients’ average age
- 58
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 2,113 | 396 |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 1,277 | 17 |
| Established patient office or other outpatient visit, 40-54 minutes | 317 | 17 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 16 companies reported 435 payments worth $84,765 in total to this clinician.
| Teva Pharmaceuticals USA, Inc. | $25,349 |
|---|---|
| Alkermes, Inc. | $16,956 |
| E.r. Squibb & Sons, L.l.c. | $15,185 |
| Otsuka America Pharmaceutical, Inc. | $12,701 |
| Janssen Pharmaceuticals, Inc | $7,961 |
| AbbVie Inc. | $5,078 |
| Vanda Pharmaceuticals Inc. | $521 |
| Iti, Inc. (d/b/a Intra-cellular Therapies, Inc.) | $225 |
| Compensation for services other than consulting (speaking, faculty) | $51,923 |
|---|---|
| Consulting Fee | $19,915 |
| Food and Beverage | $8,141 |
| Travel and Lodging | $4,634 |
| Education | $152 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| E.r. Squibb & Sons, L.l.c. Nov 25, 2025 | Consulting Fee | $7,245 |
| Alkermes, Inc. Apr 24, 2025 | Consulting Fee LYBALVI; LYBALVI; LYBALVI · CNS | $6,500 |
| Janssen Pharmaceuticals, Inc May 8, 2025 | Compensation for services other than consulting (speaking, faculty) SPRAVATO · Neuroscience | $5,880 |
| E.r. Squibb & Sons, L.l.c. Apr 1, 2025 | Consulting Fee | $4,650 |
| Teva Pharmaceuticals USA, Inc. Nov 6, 2025 | Compensation for services other than consulting (speaking, faculty) UZEDY · Neurology | $4,493 |
| Teva Pharmaceuticals USA, Inc. Mar 30, 2025 | Compensation for services other than consulting (speaking, faculty) AUSTEDO XR · Central Nervous System | $4,230 |
| Otsuka America Pharmaceutical, Inc. May 30, 2025 | Compensation for services other than consulting (speaking, faculty) REXULTI · PSYCHIATRY | $3,724 |
| Alkermes, Inc. Feb 27, 2025 | Compensation for services other than consulting (speaking, faculty) LYBALVI; LYBALVI; LYBALVI · CNS | $3,060 |
| Teva Pharmaceuticals USA, Inc. Feb 18, 2025 | Compensation for services other than consulting (speaking, faculty) AUSTEDO XR · Central Nervous System | $2,996 |
| Teva Pharmaceuticals USA, Inc. Mar 3, 2025 | Compensation for services other than consulting (speaking, faculty) UZEDY · Neurology | $2,996 |
All 63 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Vanda Pharmaceuticals Inc. Dec 30, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $11.87 |
| AbbVie Inc. Dec 18, 2025 | Compensation for services other than consulting (speaking, faculty) VRAYLAR · NEUROSCIENCE | $2,250 |
| AbbVie Inc. Dec 5, 2025 | Travel and Lodging VRAYLAR · NEUROSCIENCE · travel to WEBSTER, MA · in-kind | $21.91 |
| Teva Pharmaceuticals USA, Inc. Dec 1, 2025 | Compensation for services other than consulting (speaking, faculty) AUSTEDO XR · Central Nervous System | $2,995 |
| Teva Pharmaceuticals USA, Inc. Nov 30, 2025 | Compensation for services other than consulting (speaking, faculty) UZEDY · Neurology | $529 |
| E.r. Squibb & Sons, L.l.c. Nov 25, 2025 | Consulting Fee | $7,245 |
| Teva Pharmaceuticals USA, Inc. Nov 6, 2025 | Compensation for services other than consulting (speaking, faculty) UZEDY · Neurology | $4,493 |
| Teva Pharmaceuticals USA, Inc. Nov 6, 2025 | Travel and Lodging UZEDY · Neurology · travel to Westport, CT | $981 |
| E.r. Squibb & Sons, L.l.c. Oct 9, 2025 | Travel and Lodging COBENFY · Neuroscience · travel to Dallas, TX | $1,022 |
| E.r. Squibb & Sons, L.l.c. Oct 9, 2025 | Travel and Lodging COBENFY · Neuroscience · travel to Dallas, TX | $326 |
| E.r. Squibb & Sons, L.l.c. Oct 9, 2025 | Travel and Lodging COBENFY · Neuroscience · travel to Dallas, TX | $51.73 |
| Alkermes, Inc. Oct 7, 2025 | Compensation for services other than consulting (speaking, faculty) LYBALVI; LYBALVI; LYBALVI · CNS | $2,290 |
| Alkermes, Inc. Sep 30, 2025 | Travel and Lodging LYBALVI; LYBALVI; LYBALVI · CNS · travel to NORTH CHELMSFORD, MA · in-kind | $63.00 |
| Alkermes, Inc. Sep 26, 2025 | Compensation for services other than consulting (speaking, faculty) LYBALVI; LYBALVI; LYBALVI · CNS | $2,290 |
| Otsuka America Pharmaceutical, Inc. Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) REXULTI · PSYCHIATRY | $2,548 |
| Vanda Pharmaceuticals Inc. Sep 24, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| Vanda Pharmaceuticals Inc. Aug 26, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $1.20 |
| Teva Pharmaceuticals USA, Inc. Aug 25, 2025 | Consulting Fee AUSTEDO XR · Central Nervous System | $560 |
| Alkermes, Inc. Aug 15, 2025 | Consulting Fee LYBALVI; LYBALVI; LYBALVI · CNS | $960 |
| Vanda Pharmaceuticals Inc. Jul 23, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $12.00 |
| Otsuka America Pharmaceutical, Inc. Jul 7, 2025 | Compensation for services other than consulting (speaking, faculty) REXULTI · PSYCHIATRY | $2,548 |
| Otsuka America Pharmaceutical, Inc. Jul 7, 2025 | Compensation for services other than consulting (speaking, faculty) REXULTI · PSYCHIATRY | $351 |
| Janssen Pharmaceuticals, Inc Jul 2, 2025 | Compensation for services other than consulting (speaking, faculty) SPRAVATO · Neuroscience | $950 |
| Vanda Pharmaceuticals Inc. Jun 12, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| Vanda Pharmaceuticals Inc. Jun 4, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $11.87 |
| Vanda Pharmaceuticals Inc. Jun 4, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| Otsuka America Pharmaceutical, Inc. May 30, 2025 | Compensation for services other than consulting (speaking, faculty) REXULTI · PSYCHIATRY | $3,724 |
| Vanda Pharmaceuticals Inc. May 29, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| Otsuka America Pharmaceutical, Inc. May 21, 2025 | Travel and Lodging REXULTI · PSYCHIATRY · travel to DUXBURY, MA | $119 |
| Vanda Pharmaceuticals Inc. May 21, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| Janssen Pharmaceuticals, Inc May 8, 2025 | Compensation for services other than consulting (speaking, faculty) SPRAVATO · Neuroscience | $5,880 |
| Teva Pharmaceuticals USA, Inc. May 1, 2025 | Compensation for services other than consulting (speaking, faculty) AUSTEDO XR · Central Nervous System | $2,995 |
| Vanda Pharmaceuticals Inc. Apr 28, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| Alkermes, Inc. Apr 24, 2025 | Consulting Fee LYBALVI; LYBALVI; LYBALVI · CNS | $6,500 |
| Janssen Pharmaceuticals, Inc Apr 24, 2025 | Travel and Lodging SPRAVATO · Neuroscience · travel to MORRISTOWN, NJ · in-kind | $240 |
| Supernus Pharmaceuticals, Inc. Apr 23, 2025 | Education in-kind | $7.52 |
| Vanda Pharmaceuticals Inc. Apr 10, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $1.20 |
| Alkermes, Inc. Apr 5, 2025 | Travel and Lodging LYBALVI; LYBALVI; LYBALVI · CNS · travel to Rosemont, IL · in-kind | $392 |
| Alkermes, Inc. Apr 5, 2025 | Travel and Lodging LYBALVI; LYBALVI; LYBALVI · CNS · travel to Rosemont, IL · in-kind | $238 |
| Alkermes, Inc. Apr 5, 2025 | Travel and Lodging LYBALVI; LYBALVI; LYBALVI · CNS · travel to Rosemont, IL · in-kind | $23.00 |
| Alkermes, Inc. Apr 4, 2025 | Travel and Lodging LYBALVI; LYBALVI; LYBALVI · CNS · travel to Rosemont, IL · in-kind | $24.95 |
| Vanda Pharmaceuticals Inc. Apr 3, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $12.00 |
| E.r. Squibb & Sons, L.l.c. Apr 1, 2025 | Consulting Fee | $4,650 |
| E.r. Squibb & Sons, L.l.c. Mar 31, 2025 | Travel and Lodging travel to DALLAS, TX | $70.00 |
| Vanda Pharmaceuticals Inc. Mar 31, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $1.20 |
| Teva Pharmaceuticals USA, Inc. Mar 30, 2025 | Compensation for services other than consulting (speaking, faculty) AUSTEDO XR · Central Nervous System | $4,230 |
| Vanda Pharmaceuticals Inc. Mar 26, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $11.87 |
| Vanda Pharmaceuticals Inc. Mar 20, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $11.87 |
| AbbVie Inc. Mar 18, 2025 | Compensation for services other than consulting (speaking, faculty) VRAYLAR · NEUROSCIENCE | $2,250 |
| Vanda Pharmaceuticals Inc. Mar 12, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $6.00 |
| E.r. Squibb & Sons, L.l.c. Mar 7, 2025 | Travel and Lodging travel to Dallas, TX | $549 |
| E.r. Squibb & Sons, L.l.c. Mar 6, 2025 | Travel and Lodging travel to Dallas, TX | $304 |
| Vanda Pharmaceuticals Inc. Mar 4, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $1.20 |
| Teva Pharmaceuticals USA, Inc. Mar 3, 2025 | Compensation for services other than consulting (speaking, faculty) UZEDY · Neurology | $2,996 |
| Teva Pharmaceuticals USA, Inc. Mar 3, 2025 | Travel and Lodging UZEDY · Neurology · travel to Walpole, MA | $63.00 |
| Alkermes, Inc. Feb 27, 2025 | Compensation for services other than consulting (speaking, faculty) LYBALVI; LYBALVI; LYBALVI · CNS | $3,060 |
| Alkermes, Inc. Feb 27, 2025 | Travel and Lodging LYBALVI; LYBALVI; LYBALVI · CNS · travel to WEST SPRINGFIELD, MA · in-kind | $82.60 |
| Teva Pharmaceuticals USA, Inc. Feb 18, 2025 | Compensation for services other than consulting (speaking, faculty) AUSTEDO XR · Central Nervous System | $2,996 |
| Vanda Pharmaceuticals Inc. Feb 18, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $2.40 |
| Vanda Pharmaceuticals Inc. Feb 5, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $11.87 |
| Vanda Pharmaceuticals Inc. Jan 23, 2025 | Education FANAPT · SCHIZOPHRENIA · in-kind | $11.87 |
| Otsuka America Pharmaceutical, Inc. Jan 15, 2025 | Travel and Lodging REXULTI · PSYCHIATRY · travel to WALPOLE, MA | $63.00 |
| Otsuka America Pharmaceutical, Inc. Jan 10, 2025 | Compensation for services other than consulting (speaking, faculty) REXULTI · PSYCHIATRY | $2,548 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.