MACKENZIE MCGRATH
NPI 1659959625
Anesthesiology - Pediatric Anesthesiology in Boston, MA

Q: What is Mackenzie Mcgrath's NPI number?

The NPI number for Mackenzie Mcgrath is 1659959625. It was assigned to this individual provider in the NPPES registry on March 31, 2021.

Q: What is Mackenzie Mcgrath's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Q: When was this NPI record last updated?

The NPPES record for Mackenzie Mcgrath was last updated on May 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.

Active since March 31, 2021PECOS Enrolled

300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: May 8, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 8, 2026, Mar 31, 2021 (2 updates tracked since 2021).

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About Mackenzie Mcgrath NPPES

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

MACKENZIE MCGRATH (NPI 1659959625) is an individual pediatric anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1022288) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (2021).

NPPES Registry Identity

NPI1659959625

Entity TypeIndividualFemale

Primary Taxonomy207LP3000X

Provider Legal NameMACKENZIE MCGRATH

Location Address300 LONGWOOD AVEBoston, MA 02115-5724

Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000

Phone(617) 355-6000

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 2021

Enumeration DateMarch 31, 2021

Last NPPES UpdateMay 8, 20262 updates tracked since enumeration

NPPES CertifiedMay 8, 2026

✔ NPI 1659959625 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pediatric AnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207LP3000X

License✔ Licensed in MA · 1022288

Definition

An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy.

300 LONGWOOD AVE, Boston, MA 02115

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mackenzie Mcgrath is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466859020

PECOS Enrollment IDI20260528003617

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 Mackenzie Mcgrath reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chmc Anesthesia Foundation Inc

Same address

Pediatric Anesthesiology

300 LONGWOOD AVE
Boston, MA 02115

Reassigned Medicare billing, Massachusetts enrollment
101 clinicians in this Medicare group

NPI 1831268754 (617) 919-1340

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JULIE ANN HANSEN LCSW

Social Worker (Clinical)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (857) 218-4309

MS. ANNA ROGLIERI

Nurse Practitioner (Psychiatric/Mental Health)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-6000

STEPHEN G. FLYNN M.D.

Anesthesiology (Pediatric Anesthesiology)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-6000

MRS. LAUREN ASHLEY SHARIS P.T., D.P.T

Physical Therapist

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-7216

MS. SOYUN KWAN LICSW

Social Worker (Clinical)

300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115

Suffolk County (617) 355-0567

PUJA BANKA M.D.

Pediatrics

300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115

Suffolk County (617) 355-6363

MR. COURTNEY SULLIVAN FRATTO CPNP

Nurse Practitioner (Pediatrics)

300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115

Suffolk County (857) 218-4085

DR. ELIZABETH S TAGLAUER M.D., PH.D.

Pediatrics (Neonatal-Perinatal Medicine)

300 LONGWOOD AVE
BOSTON, MA 02115

Suffolk County (617) 355-6000

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 Mackenzie Mcgrath's NPI number?

The NPI number for Mackenzie Mcgrath is 1659959625. It was assigned to this individual provider in the NPPES registry on March 31, 2021.

Where is Mackenzie Mcgrath located?

Mackenzie Mcgrath practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Mackenzie Mcgrath's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Is Mackenzie Mcgrath enrolled in Medicare?

Yes. Mackenzie Mcgrath is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mackenzie Mcgrath's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Mcgrath reassigns Medicare benefits to Chmc Anesthesia Foundation Inc (Boston, 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 Mackenzie Mcgrath'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 Mackenzie Mcgrath was last updated on May 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.