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KEIRA MASON MD
NPI 1598744799
Anesthesiology - Pediatric Anesthesiology in Boston, MA

Active since January 16, 2006PECOS EnrolledAccepts Medicare Assignment
300 LONGWOOD AVE, DEPTARTMENT OF ANESTHESIA, BOSTON, MA 02115(617) 789-2782 Get Directions Write a Review

NPPES record last updated: October 6, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Keira Mason Md NPPES

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

KEIRA MASON MD (NPI 1598744799) is an individual pediatric anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (82061) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with Boston Children's Hospital, and is a graduate of Boston University School Of Medicine (1991).

NPPES Registry Identity

NPI1598744799
Entity TypeIndividualFemale
Primary Taxonomy207LP3000X
Provider Legal NameKEIRA MASONCredential: MD
Location Address300 LONGWOOD AVE, DEPTARTMENT OF ANESTHESIABoston, MA 02115-5724
Mailing Address300 Longwood Ave, Dept Of AnesthesiaBoston, MA 02115-5724 · (617) 562-5413 · Fax (617) 562-5415
Phone(617) 789-2782
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 1991
Enumeration DateJanuary 16, 2006
Last NPPES UpdateOctober 6, 2025
NPPES CertifiedOctober 6, 2025
✔ NPI 1598744799 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 · 82061
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
Open in Google Maps ↗

Other Identifiers 1

Medicaid3147053MA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Keira Mason Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3072615632
PECOS Enrollment IDI20070228000261
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Boston Children's Hospital

Childrens · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number223302
Location300 Longwood AvenueBoston, MA 02115 · Suffolk County
Emergency services

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
MISS LAUREN ASHLEY MASTERSON 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 Keira Mason's NPI number?

The NPI number for Keira Mason is 1598744799. It was assigned to this individual provider in the NPPES registry on January 16, 2006.

Where is Keira Mason located?

Keira Mason practices at 300 Longwood Ave Deptartment Of Anesthesia, Boston, MA 02115. The listed phone number is (617) 789-2782.

What is Keira Mason's specialty?

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

Is Keira Mason enrolled in Medicare?

Yes. Keira Mason is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Keira Mason affiliated with any hospitals?

According to CMS data, Keira Mason is affiliated with Boston Children's Hospital.

When was this NPI record last updated?

The NPPES record for Keira Mason was last updated on October 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.