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MRS. MARY ELIZABETH WHITLOCK NNP-BC
NPI 1588959670
General Acute Care Hospital - Children in Boston, MA

Active since June 16, 2011PECOS Enrolled
330 BROOKLINE AVE, BOSTON, MA 02215(617) 667-4042 Get Directions Write a Review

NPPES record last updated: November 16, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 16, 2020, Mar 17, 2018, Aug 14, 2017 and 1 more (4 updates tracked since 2016).

About Mrs. Mary Elizabeth Whitlock Nnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. MARY ELIZABETH WHITLOCK NNP-BC (NPI 1588959670) is an individual children provider in Boston, Massachusetts, licensed in Massachusetts (RN169645) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS and maintains a secondary practice location in Worcester.

NPPES Registry Identity

NPI1588959670
Entity TypeIndividualFemale
Primary Taxonomy282NC2000X
Provider Legal NameMRS. MARY ELIZABETH WHITLOCKCredential: NNP-BC
Location Address330 BROOKLINE AVEBoston, MA 02215
Mailing Address330 Brookline AveBoston, MA 02215-5400 · (617) 667-4042
Phone(617) 667-4042
Sole ProprietorYes
Enumeration DateJune 16, 2011
Last NPPES UpdateNovember 16, 20204 updates tracked since enumeration
NPPES CertifiedNovember 16, 2020
✔ NPI 1588959670 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyGeneral Acute Care Hospital · ChildrenHospitals
Taxonomy Code282NC2000X
License✔ Licensed in MA · RN169645
Also ListedNurse Practitioner · NeonatalTaxonomy 363LN0000X · License RN169645 (MA)
Also ListedNurse Practitioner · Neonatal, Critical CareTaxonomy 363LN0005X · License RN169645 (MA)
330 BROOKLINE AVE, Boston, MA 02215
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Secondary Practice Location 1

Location 1119 Belmont StWorcester, MA 01605-2903 · Phone (508) 334-6206 · Fax (508) 334-6083

Other Identifiers 1

Medicaid110091271AMA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Mary Elizabeth Whitlock Nnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Mary Whitlock reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Umass Memorial Medical Group Inc
34 mi
Internal Medicine
55 LAKE AVE N
Worcester, MA 01655
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,902 clinicians in this Medicare group
NPI 1760445373 (508) 334-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BETH ISRAEL DEACONESS MEDICAL CENTER
Chronic Disease Hospital (Children)
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 677-4042
DR. BRIAN DANIEL HOBBS MD, MMSC
Internal Medicine
330 BROOKLINE AVE, PULMONARY AND CRITICAL CARE DEPARTMENT
BOSTON, MA 02215
Suffolk County (617) 667-5864
ERICA DOMMASCH MD
Dermatology
330 BROOKLINE AVE, SHAPIRO 2
BOSTON, MA 02215
Suffolk County (617) 667-3753
VAHID KIARAD M.D
Anesthesiology
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000
DR. MICHAEL R GOLDSTEIN PHD
Psychologist (Clinical)
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 356-7246
SARA MURDOCK CAHILL MD
Hospitalist
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000
DR. DEVON ABT HARRIS MD
Obstetrics & Gynecology (Gynecologic Oncology)
330 BROOKLINE AVE, KIRSTEIN 3
BOSTON, MA 02215
Suffolk County (617) 667-3736
DR. ELIZABETH MAIER BALOUGH MD, PHD
Student in an Organized Health Care Education/Training Program
330 BROOKLINE AVE
BOSTON, MA 02215
Suffolk County (617) 667-7000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Whitlock's NPI number?

The NPI number for Mary Whitlock is 1588959670. It was assigned to this individual provider in the NPPES registry on June 16, 2011.

Where is Mary Whitlock located?

Mary Whitlock practices at 330 Brookline Ave, Boston, MA 02215. The listed phone number is (617) 667-4042.

What is Mary Whitlock's specialty?

The primary specialty registered for this NPI is General Acute Care Hospital, specializing in Children, with taxonomy code 282NC2000X.

Is Mary Whitlock enrolled in Medicare?

Yes. Mary Whitlock is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Whitlock's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Whitlock reassigns Medicare benefits to Umass Memorial Medical Group Inc (Worcester, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Whitlock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Whitlock was last updated on November 16, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.