Cynthia Carroll Maclachlan, MSN, WHNP
Obstetrics & Gynecology Nurse Practitioner · Weymouth, MA
Cynthia Carroll Maclachlan, MSN, WHNP is an obstetrics & gynecology nurse practitioner with a practice address in Weymouth, Massachusetts, and NPI 1265432728, issued on Jul 27, 2005. Check the license (Massachusetts 233849, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cynthia Carroll Maclachlan
- Credential
- MSN, WHNP
- Primary taxonomy
- Obstetrics & Gynecology Nurse Practitioner 363LX0001X
- License number
- 233849 MA
Self-reported in NPPES; status is on the state search - Practice location
- 51 Performance Dr, Weymouth, MA 02189
- Phone
- (781) 682-8000
- Enumerated
- Jul 27, 2005
- Record last updated
- Mar 6, 2023
- Medicare enrollment
- Enrolled (PECOS I20060111000792); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology nurse practitioner records → All 89 in Massachusetts → Look up another NPI →
Also registered at 51 Performance Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Benjamin Christian, M.D.Plastic and Reconstructive Surgery Physician1730307588
Verify Cynthia Carroll Maclachlan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 233849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average obstetrics & gynecology nurse practitioner in 2024
24 Medicare Part D claims for 11 beneficiaries, against an average of 198 among the 1,094 providers of this specialty who prescribed in Part D.
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).
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).
Cynthia Carroll Maclachlan among 89 obstetrics & gynecology nurse practitioner records in Massachusetts
Cynthia Carroll Maclachlan, MSN, WHNP is one of 89 obstetrics & gynecology nurse practitioner records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2000 · median 2008 among the 37 with a school on file
- Record last updated2023 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LX0001X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Nurse Practitioner providers in Massachusetts
There are 89 obstetrics & gynecology nurse practitioner records in Massachusetts.
All 89 in Massachusetts → Every provider in Weymouth → Obstetrics & Gynecology Nurse Practitioner nationwide →
The 8 obstetrics & gynecology nurse practitioner records with the nearest ZIP codes
- Diane Rutan, NPWeymouth, MA 021891811021678
- Lynda Clancy, RNPWeymouth, MA 021901245261759
- Rosemary Joyce, NPWeymouth, MA 021901427089721
- Toni - Ann Rebelo, MSN, ANPStoneham, MA 021801053672667
- Kathleen Ammon, NPMelrose, MA 021761104282136
- Kathleen Fuller, NPQuincy, MA 021691689638371
- Liana Kantola, NPQuincy, MA 021691316572159
- Jaime Kullak, RN,WHNPQuincy, MA 021691508000803
Common questions
What is Cynthia Carroll Maclachlan, MSN, WHNP's NPI number?
Cynthia Carroll Maclachlan, MSN, WHNP's National Provider Identifier (NPI) is 1265432728, issued on Jul 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Carroll Maclachlan, MSN, WHNP located?
The NPPES record lists a practice address at 51 Performance Dr, Weymouth, MA, 02189. Phone: (781) 682-8000. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Carroll Maclachlan, MSN, WHNP's license?
NPPES lists Massachusetts license number 233849, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Cynthia Carroll Maclachlan, MSN, WHNP prescribe under Medicare Part D?
In 2024, Cynthia Carroll Maclachlan, MSN, WHNP had 24 Medicare Part D claims for 11 beneficiaries; the average among obstetrics & gynecology nurse practitioner prescribers was 198. Part D covers Medicare prescriptions only.
What is Cynthia Carroll Maclachlan, MSN, WHNP'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.