Marcia Maclean Walsh, N.P.
Acute Care Nurse Practitioner · Chelmsford, MA
Marcia Maclean Walsh, N.P. is an acute care nurse practitioner with a practice address in Chelmsford, Massachusetts, and NPI 1225068299, issued on Jul 4, 2006. Check the license (Massachusetts 198308, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marcia Maclean Walsh
- Credential
- N.P.
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 198308 MA
Self-reported in NPPES; status is on the state search - Practice location
- 228 Billerica RD, Chelmsford, MA 01824
- Phone
- (978) 250-6000
- Enumerated
- Jul 4, 2006
- Record last updated
- Mar 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040803000638); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 598 in Massachusetts → Look up another NPI →
Also registered at 228 Billerica RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Marcia Maclean Walsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 198308Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average acute care nurse practitioner in 2024
759 Medicare Part D claims for 243 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Amlodipine Besylate62 claims
- Lisinopril52 claims
- Atorvastatin Calcium41 claims
- Metformin Hcl Er28 claims
- Omeprazole22 claims
- Lantus Solostar19 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: $157.64
3 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 10,984 providers of this specialty with any payment received $647.94 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
- Atrius Health IncNeedham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcia Maclean Walsh among 598 acute care nurse practitioner records in Massachusetts
Marcia Maclean Walsh, N.P. is one of 598 acute care nurse practitioner records with a practice address in Massachusetts. 74% 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 under 1% of them.
- NPI issued2006 · under 1% of these records are older, 89% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2002 · median 2016 among the 341 with a school on file
- Record last updated2021 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Massachusetts
There are 598 acute care nurse practitioner records in Massachusetts.
All 598 in Massachusetts → Every provider in Chelmsford → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Virginia Cashman, APRNBradford, MA 018351346658093
- Zacharia Matar, AGACNP-BCLawrence, MA 018411740988328
- Emma Baker, DNPBurlington, MA 018051053100800
- Alanna Birner, MSN, AGACNP-BC, CCRNBurlington, MA 018051134593650
- Mary Boyum, NPBurlington, MA 018051366875742
- Suzeline Delice, APRNBurlington, MA 018051750971933
- Bethany Freel, DNP, AGAC NP-BCBurlington, MA 018051033825385
- Kathryn Horner, CNPBurlington, MA 018051396245593
Common questions
What is Marcia Maclean Walsh, N.P.'s NPI number?
Marcia Maclean Walsh, N.P.'s National Provider Identifier (NPI) is 1225068299, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcia Maclean Walsh, N.P. located?
The NPPES record lists a practice address at 228 Billerica RD, Chelmsford, MA, 01824. Phone: (978) 250-6000. Providers update this record themselves, so call before visiting.
How can I verify Marcia Maclean Walsh, N.P.'s license?
NPPES lists Massachusetts license number 198308, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Marcia Maclean Walsh, N.P. prescribe under Medicare Part D?
In 2024, Marcia Maclean Walsh, N.P. had 759 Medicare Part D claims for 243 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.