Karen Mary Toujouse, M.D.
Obstetrics & Gynecology Physician · S Weymouth, MA
Karen Mary Toujouse, M.D. is an obstetrics & gynecology physician with a practice address in S Weymouth, Massachusetts, and NPI 1447216890, issued on Apr 25, 2006. Check the license (Massachusetts 156643, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Karen Mary Toujouse
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 156643 MA
Self-reported in NPPES; status is on the state search - Practice location
- 90 Libbey Parkway, S Weymouth, MA 02189
- Phone
- (339) 201-4120
- Enumerated
- Apr 25, 2006
- Record last updated
- Sep 14, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (781) 545-8117
- Medicaid ID
- 3183394 MA
- Medicare enrollment
- Enrolled (PECOS I20090713000394); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1994
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,127 in Massachusetts → Look up another NPI →
Also registered at 90 Libbey Parkway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julianne Arena, M.D.Obstetrics & Gynecology Physician1679541064
- Kimberly Dever, M.D.Obstetrics & Gynecology Physician1265433973
- Christine Hirsemann, M.D.Obstetrics & Gynecology Physician1053414136
- Mary Hogan-Donaldson, CNMAdvanced Practice Midwife1538213699
- Darlyne Johnson, M.D.Obstetrics & Gynecology Physician1831158518
- Carolyn McNulty, D.O.Obstetrics & Gynecology Physician1932235967
Verify Karen Mary Toujouse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 156643Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
285 Medicare Part D claims for 88 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Estradiol119 claims
- Yuvafem35 claims
- Clobetasol Propionate16 claims
- Premarin16 claims
- Estring12 claims
- Estradiol (Once Weekly)11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $20.33
1 payment: food and beverage; the largest payer was CooperSurgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Bills Medicare through one group practice
- South Shore Medical Center, Inc.Weymouth, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Mary Toujouse among 1,127 obstetrics & gynecology physician records in Massachusetts
Karen Mary Toujouse, M.D. is one of 1,127 obstetrics & gynecology physician records with a practice address in Massachusetts. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 50% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1994 · median 2004 among the 715 with a school on file
- Record last updated2012 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 obstetrics & gynecology physician records list a practice address in S Weymouth
They are 6 of the 45 NPPES records with a practice address in S Weymouth, and 1,127 obstetrics & gynecology physician records in Massachusetts.
All 1,127 in Massachusetts → Every provider in S Weymouth → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Julianne Arena, M.D.S Weymouth, MA 021891679541064
- Hsi-Pin Chen, MDWeymouth, MA 021891871550228
- Kimberly Dever, M.D.S Weymouth, MA 021891265433973
- Shannon Fullerton, MDWeymouth, MA 021891821099110
- Lisa Gioni, M.D.Weymouth, MA 021891356562573
- Christine Hirsemann, M.D.S Weymouth, MA 021891053414136
- Darlyne Johnson, M.D.S Weymouth, MA 021891831158518
- Ingrid Kotch, MDWeymouth, MA 021891922089648
Common questions
What is Karen Mary Toujouse, M.D.'s NPI number?
Karen Mary Toujouse, M.D.'s National Provider Identifier (NPI) is 1447216890, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Mary Toujouse, M.D. located?
The NPPES record lists a practice address at 90 Libbey Parkway, S Weymouth, MA, 02189. Phone: (339) 201-4120. Providers update this record themselves, so call before visiting.
How can I verify Karen Mary Toujouse, M.D.'s license?
NPPES lists Massachusetts license number 156643, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Mary Toujouse, M.D. prescribe under Medicare Part D?
In 2024, Karen Mary Toujouse, M.D. had 285 Medicare Part D claims for 88 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Karen Mary Toujouse, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.