MS. MARY LINDA L O'REILLY (NP) – Nurse Practitioner, NPI 1043271455

MS. MARY LINDA L O'REILLY (NP) is a healthcare provider. based in Boston, Massachusetts. specializing in NURSE PRACTITIONER. They hold the professional credentials NP. They hold a License No. RN197029 (MA). The NPI Number for MS. MARY LINDA L O'REILLY (NP) is 1043271455

Main info

Female
33 Years Of Experience
Accepts Medicare Assignment
Name
MS. MARY LINDA L O'REILLY (NP)
NPI
1043271455
Phone
Not provided
Address
PO BOX 415348
Enumeration Date
28 March 2006
Last Update Date
10 November 2022

Doctor Profile

Medical School Name
OTHER
Secondary Phone
5083341000
Graduation Year
1993 (33 years ago)
PAC ID
7719913664
Group Practice PAC ID
4284539891
Professional Enrollment ID
I20050712000512
Address ID
MA016052903WO119XXSTXX300
Telehealth
Yes

Contacts

Secure Messaging
moreilly23453@UmassMemorial.direct-ci.com
FHIR Endpoint
https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience73
Completeness85
Years active:20State licenses:2Other namesUpdated within 12 months

8,971 NURSE PRACTITIONER in MA

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Provider Addresses for MS. MARY LINDA L O'REILLY (NP)

  • 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

    WORCESTER, MA 016052903

    Phone: (508) 334-6053

    Fax: (508) 334-6412

    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: 2005-07-12

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
I20050712000512INurse PractitionerMATBD

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99213Established patient office or other outpatient visit, 20-29 minutes12256$0
99212Established patient office or other outpatient visit, 10-19 minutes1611$0
View full utilization report →

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: 4284539891View full group profile
NameSpecialtyState
Certified Registered Nurse Anesthetist (Crna)MA
-MA
-MA
Family PracticeMA
Physician AssistantMA
Pulmonary Disease, Critical Care (Intensivists), Allergy/ImmunologyMA
-MA
-MA
Internal MedicineMA
Nurse PractitionerMA

Reviews

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Frequently asked questions

Does MS. MARY LINDA L O'REILLY (NP) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — MS. MARY LINDA L O'REILLY (NP) uses 1043271455.
Does the file indicate MS. MARY LINDA L O'REILLY (NP) is practicing under active NPI?
Directory data currently reports MS. MARY LINDA L O'REILLY (NP) as active.
What is MS. MARY LINDA L O'REILLY (NP) best known for clinically?
Directory data describes MS. MARY LINDA L O'REILLY (NP) with Nurse Practitioner. Clinical services aligned with this taxonomy classification.
Where is MS. MARY LINDA L O'REILLY (NP) based?
MS. MARY LINDA L O'REILLY (NP) is tied to Boston, Massachusetts in the data we show; additional addresses may exist on the full record.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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