NPPES file of Aug 9, 2026

Hayley Marshall-Drohan, D.O.

Obstetrics & Gynecology Physician · Milford, MA

Hayley Marshall-Drohan, D.O. is an obstetrics & gynecology physician with a practice address in Milford, Massachusetts, and NPI 1144286170, issued on Apr 26, 2006. Check the license (Massachusetts 157990, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144286170
Name
Hayley Marshall-Drohan
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
157990 MA
Self-reported in NPPES; status is on the state search
Practice location
91 Water St, Milford, MA 01757
Phone
(508) 458-4200
Enumerated
Apr 26, 2006
Record last updated
Nov 4, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
3189686 MA
Medicare enrollment
Enrolled (PECOS I20080721000622); accepts Medicare assignment
Medical or professional school
New York College Of Osteo Medicine Of New York Institute Of Technology, 1994
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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Also registered at 91 Water St

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

  1. Amy Abbot, M.D.Orthopaedic Surgery Physician1184773996
  2. Erica Bailey, CNPNurse Practitioner1356360176
  3. Robert Canning, M.D.Surgery Physician1518033927
  4. Marcel Droz, PA-CPhysician Assistant1548598774
  5. Kathryn Gunness, N.P.Women's Health Nurse Practitioner1811959448
  6. Karen Jeng, M.D.Obstetrics & Gynecology Physician1942285184

Verify Hayley Marshall-Drohan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 157990
    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
Open the Massachusetts license search

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52% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

79 Medicare Part D claims for 37 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Hayley Marshall-Drohan79
  2. Specialty average165

Most prescribed

  1. Estradiol13 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.

  1. Qualityout of 100 · 30% of the final score78.1
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Umass Memorial Medical Group IncMilford, MA

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

Hayley Marshall-Drohan among 1,127 obstetrics & gynecology physician records in Massachusetts

Hayley Marshall-Drohan, D.O. 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 updated2020 · 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).

Obstetrics & Gynecology Physician providers in Massachusetts

There are 1,127 obstetrics & gynecology physician records in Massachusetts.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Mitchell Bellucci, M.D.Milford, MA 017571528005782
  2. Brian Bond, M.D.Milford, MA 017571326161225
  3. Kelly Bowen, D.O.Milford, MA 017571174920557
  4. Brenda Coutinho, MDMilford, MA 017571356303754
  5. Leonard Digiovanni, D.O.Milford, MA 017571124081401
  6. David Harrington, MDMilford, MA 017571205819000
  7. Karen Jeng, M.D.Milford, MA 017571942285184
  8. Beata Kereszti, MDMilford, MA 017571346338423

Common questions

What is Hayley Marshall-Drohan, D.O.'s NPI number?

Hayley Marshall-Drohan, D.O.'s National Provider Identifier (NPI) is 1144286170, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Hayley Marshall-Drohan, D.O. located?

The NPPES record lists a practice address at 91 Water St, Milford, MA, 01757. Phone: (508) 458-4200. Providers update this record themselves, so call before visiting.

How can I verify Hayley Marshall-Drohan, D.O.'s license?

NPPES lists Massachusetts license number 157990, 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 Hayley Marshall-Drohan, D.O. prescribe under Medicare Part D?

In 2024, Hayley Marshall-Drohan, D.O. had 79 Medicare Part D claims for 37 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Hayley Marshall-Drohan, D.O.'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.