Olivia Anna Jean Begasse De Dhaem, M.D.
Neurology Physician · Stamford, CT
Olivia Anna Jean Begasse De Dhaem, M.D. is a neurology physician with a practice address in Stamford, Connecticut, and NPI 1639557408, issued on May 13, 2015. Check the license (Connecticut 64919, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Olivia Anna Jean Begasse De Dhaem
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- 64919 CT
277815 MA
Self-reported in NPPES; status is on the state search - Practice location
- 90 Mogan Street, Stamford, CT 06902
- Phone
- (203) 306-2949
- Enumerated
- May 13, 2015
- Record last updated
- Feb 2, 2026
- Fax
- (203) 884-8939
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 345 in Connecticut → Look up another NPI →
Verify Olivia Anna Jean Begasse De Dhaem in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 64919Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average neurology physician in 2024
178 Medicare Part D claims for 28 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Divalproex Sodium16 claims
- Gabapentin15 claims
- Memantine Hcl12 claims
- Prochlorperazine Maleate12 claims
- Ubrelvy12 claims
- Naratriptan Hcl11 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: $16,689.25
27 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Olivia Anna Jean Begasse De Dhaem among 345 neurology physician records in Connecticut
Olivia Anna Jean Begasse De Dhaem, M.D. is one of 345 neurology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 68% of them.
- NPI issued2015 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Connecticut
There are 345 neurology physician records in Connecticut.
All 345 in Connecticut → Every provider in Stamford → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Sarah Buckingham, MDStamford, CT 069021447549639
- Derek Cheng, D.O.Stamford, CT 069021013356716
- Colin Klenk, M.D.Stamford, CT 069021487004024
- Eric Kung, M.D.Stamford, CT 069021639262686
- Sarah Mulukutla, MD, MPHStamford, CT 069021164711354
- Donald Price, M.D.Stamford, CT 069021386738813
- Louise Resor, M.D.Stamford, CT 069021669540613
- Tammie Tam, MDStamford, CT 069021609403039
Common questions
What is Olivia Anna Jean Begasse De Dhaem, M.D.'s NPI number?
Olivia Anna Jean Begasse De Dhaem, M.D.'s National Provider Identifier (NPI) is 1639557408, issued on May 13, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Anna Jean Begasse De Dhaem, M.D. located?
The NPPES record lists a practice address at 90 Mogan Street, Stamford, CT, 06902. Phone: (203) 306-2949. Providers update this record themselves, so call before visiting.
How can I verify Olivia Anna Jean Begasse De Dhaem, M.D.'s license?
NPPES lists Connecticut license number 64919, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Olivia Anna Jean Begasse De Dhaem, M.D. prescribe under Medicare Part D?
In 2024, Olivia Anna Jean Begasse De Dhaem, M.D. had 178 Medicare Part D claims for 28 beneficiaries; the average among neurology physician prescribers was 1,370. 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.