MARY M. HERLIHY (M.D.) – Obstetrics Physician, NPI 1679564967

MARY M. HERLIHY (M.D.) is a healthcare provider. based in Boston, Massachusetts. specializing in OBSTETRICS/GYNECOLOGY. They hold the professional credentials M.D.. They hold a License No. 156223 (MA). The NPI Number for MARY M. HERLIHY (M.D.) is 1679564967

Main info

Female
32 Years Of Experience
Accepts Medicare Assignment
Name
MARY M. HERLIHY (M.D.)
NPI
1679564967
Phone
Not provided
Address
PO BOX 415348
Enumeration Date
4 November 2005
Last Update Date
26 October 2012

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
6176672000
Graduation Year
1994 (32 years ago)
PAC ID
9537245873
Group Practice PAC ID
8123936119
Professional Enrollment ID
I20080326000676
Address ID
MA022155400BO330XXAVEX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,231 OBSTETRICS/GYNECOLOGY in MA

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Provider Addresses for MARY M. HERLIHY (M.D.)

  • PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States

    BOSTON, MA 022415348

    Phone:

    Type: Mailing

  • UMass Memorial Medical Center - Memorial Campus, 119, Belmont Street, Chandler Hill, Worcester, Worcester County, Massachusetts, 01605, United States

    DEPARTMENT OF OBSTETRICS & GYNECOLOGY

    WORCESTER, MA 016052903

    Phone: (508) 334-6255

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2008-03-26

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20080326000676IObstetrics/GynecologyMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02241)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8123936119View full group profile
NameSpecialtyState
Emergency MedicineMA
Emergency MedicineNY
Emergency MedicineMA
Internal MedicineMA
P S Y C H I A T R YMA
Internal Medicine, EndocrinologyMA
Emergency Medicine, Medical ToxicologyMA
Emergency MedicineMA
Emergency MedicineMA
-MA

Reviews

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Frequently asked questions

What number should I use to identify MARY M. HERLIHY (M.D.) for billing?
Administrative and clinical systems typically use NPI 1679564967 for MARY M. HERLIHY (M.D.).
Should I treat MARY M. HERLIHY (M.D.) as an active provider?
Patients and plans typically see MARY M. HERLIHY (M.D.) as active in the national extract.
Which specialty label fits MARY M. HERLIHY (M.D.)?
NPPES ties MARY M. HERLIHY (M.D.) to Obstetrics Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.
What geographic area is tied to MARY M. HERLIHY (M.D.)?
MARY M. HERLIHY (M.D.) is associated with Boston, Massachusetts in the same public data insurers reference.
Who maintains MARY M. HERLIHY (M.D.)'s record?
Providers certify NPPES data; CMS hosts the public file you are viewing.

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