Wendy K. Marsh, MD
Psychiatry Physician · Worcester, MA
Wendy K. Marsh, MD is a psychiatry physician with a practice address in Worcester, Massachusetts, and NPI 1376678136, issued on Feb 22, 2007. Check the license (Massachusetts 233842, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Wendy K. Marsh
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 233842 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 334-2537
- Enumerated
- Feb 22, 2007
- Record last updated
- Nov 30, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 334-3000
- Medicaid ID
- 110077550A MA
- Medicare enrollment
- Enrolled (PECOS I20071026000193); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,736 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Wendy K. Marsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 233842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average psychiatry physician in 2024
43 Medicare Part D claims for 13 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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 MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wendy K. Marsh among 2,736 psychiatry physician records in Massachusetts
Wendy K. Marsh, MD is one of 2,736 psychiatry physician records with a practice address in Massachusetts. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 37% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2000 · median 2005 among the 1,219 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
133 psychiatry physician records list a practice address in Worcester
They are 133 of the 13,166 NPPES records with a practice address in Worcester, and 2,736 psychiatry physician records in Massachusetts.
All 2,736 in Massachusetts → Every provider in Worcester → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Nancy Byatt, D.O.Worcester, MA 016551487635736
- Cezar Cimpeanu, M.D.Worcester, MA 016551235120858
- Kimberlee Kusiak, M.D.Worcester, MA 016551639157050
- Margaret Lawler, MDWorcester, MA 016551225016702
- Mercedes Menendez, M.D.Worcester, MA 016551891779054
- David Morin, M.D.Worcester, MA 016551215910914
- David Olson, M.D.Worcester, MA 016551982687679
- Paul Plasky, M.D.Worcester, MA 016551144203027
Common questions
What is Wendy K. Marsh, MD's NPI number?
Wendy K. Marsh, MD's National Provider Identifier (NPI) is 1376678136, issued on Feb 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Wendy K. Marsh, MD located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 334-2537. Providers update this record themselves, so call before visiting.
How can I verify Wendy K. Marsh, MD's license?
NPPES lists Massachusetts license number 233842, 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 Wendy K. Marsh, MD prescribe under Medicare Part D?
In 2024, Wendy K. Marsh, MD had 43 Medicare Part D claims for 13 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is Wendy K. Marsh, MD's MIPS final score?
The 2023 MIPS final score is 97 of 100. 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.