Doctor profile · Federal record
Dr. Olivia Begasse de Dhaem, M.D.
Neurology Physician · Neurology Physician · Stamford, CT
- NPI 1639557408
- 11 yrs on file
- Licensed in 2 states
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
90 Mogan Street, Suite 305-306
Stamford, CT 06902
(203) 306-2949
fax (203) 884-8939
Credentials & registration
- NPI registered
- May 2015 — 11 yrs on file
- Profile last updated
- February 2, 2026
- Specialty taxonomy
- 2084N0400X — NUCC code
- State licenses (2)
- Connecticut #64919 · Massachusetts #277815
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639557408. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
31
Distinct HCPCS
2
Medicare allowed
$5,987
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 20 | 13 | $176 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 11 | 11 | $223 |
In context: peer comparison
Among 4 peers in Stamford Neurology Physician, average services per provider: 1,489. This provider delivers 0.0× the peer median.Open Payments
Industry payments received
All-time total
$16,689
Transactions
27
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 12 | $16,312.63 | |
| Lundbeck LLC | 3 | $219.19 | |
| Abbvie INC. | 11 | $135.61 | |
| Teva Pharmaceuticals USA, INC. | 1 | $21.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
262
Patients
27
Total drug cost
$139,991
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Divalproex Sodium | Generic | 47 | 16 | $829 |
| Sumatriptan Succinate | Generic | 36 | 0 | $5,393 |
| Emgality Pen (Galcanezumab-Gnlm) | Brand | 31 | 0 | $26,534 |
| Nurtec Odt (Rimegepant Sulfate) | Brand | 25 | 0 | $34,286 |
| Qulipta (Atogepant) | Brand | 23 | 0 | $30,228 |
| Gabapentin | Generic | 22 | 11 | $266 |
| Naratriptan Hcl | Generic | 17 | 0 | $487 |
| Topiramate | Generic | 17 | 0 | $243 |
| Tizanidine Hcl | Generic | 16 | 0 | $134 |
| Amitriptyline Hcl | Generic | 14 | 0 | $206 |
Frequently asked questions
What is Dr. Olivia Begasse de Dhaem's medical specialty?
Dr. Olivia Begasse de Dhaem practices Neurology Physician in Stamford, CT.
Where does Dr. Olivia Begasse de Dhaem practice?
Dr. Olivia Begasse de Dhaem practices at 90 Mogan Street, Stamford, CT 06902. Office phone: 2033062949.
What is Dr. Olivia Begasse de Dhaem's NPI?
Dr. Olivia Begasse de Dhaem's National Provider Identifier (NPI) is 1639557408, issued by NPPES.
What procedures does Dr. Olivia Begasse de Dhaem commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.