Sandrine Marie Couldwell, DDS, MS
Periodontics · Boston, MA
Sandrine Marie Couldwell, DDS, MS is a periodontics with a practice address in Boston, Massachusetts, and NPI 1871150060, issued on May 22, 2019. Check the license (Massachusetts DN1859122, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sandrine Marie Couldwell
- Credential
- DDS, MS
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- DN1859122 MA
Self-reported in NPPES; status is on the state search - Practice location
- 151 Merrimac St Ste 100, Boston, MA 02114
- Phone
- (617) 982-2233
- Enumerated
- May 22, 2019
- Record last updated
- Aug 27, 2024
- Entity
- Type 1 · individual
8 nearest periodontics records → All 390 in Massachusetts → Look up another NPI →
Verify Sandrine Marie Couldwell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license DN1859122Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average periodontics in 2024
48 Medicare Part D claims for 18 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chlorhexidine Gluconate15 claims
- Amoxicillin11 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: $32.59
1 payment: food and beverage; the largest payer was Zimvie Inc. The 2,966 providers of this specialty with any payment received $1,338.41 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.
Sandrine Marie Couldwell among 390 periodontics records in Massachusetts
Sandrine Marie Couldwell, DDS, MS is one of 390 periodontics records with a practice address in Massachusetts. 54% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 10% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2024 · 81% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in Massachusetts
There are 390 periodontics records in Massachusetts.
All 390 in Massachusetts → Every provider in Boston → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Marc Nevins, D.M.D. M.M.SC.,P.C.Boston, MA 021141972602092
- Sofia Ostrer, DMD,MSDSomerville, MA 021141114943966
- Daniel Stiefel, D.M.D.Boston, MA 021141356547566
- Reem Atout, BDS, DDS, MSBoston, MA 021151649500802
- Mersiha Avdic, DMDBoston, MA 021151720259203
- Guillaume Campard, DDSBoston, MA 021151730346032
- William Giannobile, DDS MS,DMSCBoston, MA 021151649347428
- Thomas Howell, DDSBoston, MA 021151275639957
Common questions
What is Sandrine Marie Couldwell, DDS, MS's NPI number?
Sandrine Marie Couldwell, DDS, MS's National Provider Identifier (NPI) is 1871150060, issued on May 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sandrine Marie Couldwell, DDS, MS located?
The NPPES record lists a practice address at 151 Merrimac St Ste 100, Boston, MA, 02114. Phone: (617) 982-2233. Providers update this record themselves, so call before visiting.
How can I verify Sandrine Marie Couldwell, DDS, MS's license?
NPPES lists Massachusetts license number DN1859122, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Sandrine Marie Couldwell, DDS, MS prescribe under Medicare Part D?
In 2024, Sandrine Marie Couldwell, DDS, MS had 48 Medicare Part D claims for 18 beneficiaries; the average among periodontics prescribers was 277. 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.