Olivia Begasse De Dhaem, M.D.
NPI 1639557408 · Neurology Physician · Stamford, CT
Olivia Begasse De Dhaem, M.D. is a Neurology Physician provider in Stamford, CT (NPI 1639557408).
Provider details
- NPI number
- 1639557408
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 64919 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Divalproex Sodium | 16 |
| Gabapentin | 15 |
| Memantine Hcl | 12 |
| Prochlorperazine Maleate | 12 |
| Ubrogepantbrand: Ubrelvy | 12 |
| Naratriptan Hcl | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$16,689 across 27 records (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
- 2015-05-13
- Last updated
- 2026-02-02
- Certified
- 2026-02-02
Frequently asked questions
- What is Olivia Begasse De Dhaem's NPI number?
- Olivia Begasse De Dhaem's National Provider Identifier (NPI) is 1639557408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olivia Begasse De Dhaem's specialty?
- Olivia Begasse De Dhaem is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Olivia Begasse De Dhaem located?
- Olivia Begasse De Dhaem's practice location on file with NPPES is 90 Mogan Street, Stamford, CT 06902.
- What is Olivia Begasse De Dhaem's phone number?
- The practice phone number listed in the NPPES registry for Olivia Begasse De Dhaem is (203) 306-2949.
- Is Olivia Begasse De Dhaem's NPI active?
- Yes — Olivia Begasse De Dhaem's NPI (1639557408) is active in the NPPES registry as of the last update on 2026-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.