NPPES file of Aug 9, 2026

Mary Helen Darcy, NP

Obstetrics & Gynecology Nurse Practitioner · Medford, MA

Mary Helen Darcy, NP is an obstetrics & gynecology nurse practitioner with a practice address in Medford, Massachusetts, and NPI 1316935455, issued on Oct 12, 2005. Check the license (Massachusetts 154282, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1316935455
Name
Mary Helen Darcy
Credential
NP
Primary taxonomy
Obstetrics & Gynecology Nurse Practitioner 363LX0001X
License number
154282 MA
Self-reported in NPPES; status is on the state search
Practice location
101 Main St, Medford, MA 02155
Phone
(781) 395-6000
Enumerated
Oct 12, 2005
Record last updated
Apr 4, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(781) 395-4703
Medicaid ID
0353621 MA
Medicare enrollment
Enrolled (PECOS I20060131000285); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology nurse practitioner records → All 89 in Massachusetts → Look up another NPI →

Also registered at 101 Main St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Marie Angeli Adamczyk, MDInternal Medicine Physician1487756375
  2. Natalia Batt, MDInternal Medicine Physician1245415884
  3. Stephanie Bjork, M.D.Obstetrics & Gynecology Physician1093949778
  4. David Bowling, MDOtolaryngology Physician1194716308
  5. Nora Brooke, M.D.Neurology Physician1639252828
  6. Paul Colaneri, DMDGeneral Practice Dentistry1134119944

Verify Mary Helen Darcy in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 154282    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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54% more Medicare Part D claims than the average obstetrics & gynecology nurse practitioner in 2024

305 Medicare Part D claims for 95 beneficiaries, against an average of 198 among the 1,094 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Mary Darcy305
  2. Specialty average198

Most prescribed

  1. Nystatin51 claims
  2. Estradiol46 claims
  3. Yuvafem25 claims
  4. Betamethasone Valerate16 claims
  5. Triamcinolone Acetonide13 claims
  6. Acyclovir12 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: $56.19

3 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 1,033 providers of this specialty with any payment received $439.39 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Darcy$56.19
  2. Specialty average$439.39

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

  1. Hallmark Health Medical Associates IncMalden, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Helen Darcy among 89 obstetrics & gynecology nurse practitioner records in Massachusetts

Mary Helen Darcy, NP 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
  • Graduated1982 · median 2008 among the 37 with a school on file
  • Record last updated2013 · 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 Medford → Obstetrics & Gynecology Nurse Practitioner nationwide →

The 8 obstetrics & gynecology nurse practitioner records with the nearest ZIP codes

  1. Karen Crowley, NPMalden, MA 021481487643755
  2. Shaina Kulbersh, MSN, APRN, WHNP-BCSomerville, MA 021441417590514
  3. Sarah Bansen, APRNSomerville, MA 021431225181910
  4. Deborah Lipkin, NPSomerville, MA 021431457446106
  5. Kathleen Fuller, NPQuincy, MA 021691689638371
  6. Liana Kantola, NPQuincy, MA 021691316572159
  7. Jaime Kullak, RN,WHNPQuincy, MA 021691508000803
  8. Kayla Sullivan, FNP-BCQuincy, MA 021691376393181

Common questions

What is Mary Helen Darcy, NP's NPI number?

Mary Helen Darcy, NP's National Provider Identifier (NPI) is 1316935455, issued on Oct 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mary Helen Darcy, NP located?

The NPPES record lists a practice address at 101 Main St, Medford, MA, 02155. Phone: (781) 395-6000. Providers update this record themselves, so call before visiting.

How can I verify Mary Helen Darcy, NP's license?

NPPES lists Massachusetts license number 154282, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Helen Darcy, NP prescribe under Medicare Part D?

In 2024, Mary Helen Darcy, NP had 305 Medicare Part D claims for 95 beneficiaries; the average among obstetrics & gynecology nurse practitioner prescribers was 198. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.