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DR. MARA KATHERINE ALEXEEV M.D.
NPI 1750657912
Pediatrics in Boston, MA

Active since March 31, 2012
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: May 6, 2020. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 6, 2020, May 8, 2019 (2 updates tracked since 2019).

About Dr. Mara Katherine Alexeev M.d. NPPES

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

DR. MARA KATHERINE ALEXEEV M.D. (NPI 1750657912) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (237) and active in the NPI registry since March 2012. She maintains a secondary practice location in Oakland.

NPPES Registry Identity

NPI1750657912
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MARA KATHERINE ALEXEEVCredential: M.D.
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Phone(617) 355-6000
Sole ProprietorNo
Enumeration DateMarch 31, 2012
Last NPPES UpdateMay 6, 20202 updates tracked since enumeration
NPPES CertifiedMay 6, 2020
✔ NPI 1750657912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in MA · 237✔ Licensed in NY · 289387
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
300 LONGWOOD AVE, Boston, MA 02115
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Other Names 1

Former Name (1)Mara Katherine Determan M.d.

Secondary Practice Location 1

Location 1280 W MacArthur Blvd, Kaiser Permanente Medical CenterOakland, CA 94611-5642 · Phone (510) 752-1375

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 Mara Alexeev's NPI number?

The NPI number for Mara Alexeev is 1750657912. It was assigned to this individual provider in the NPPES registry on March 31, 2012. The provider is also known as Mara Katherine Determan M.D..

Where is Mara Alexeev located?

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

What is Mara Alexeev's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Mara Alexeev was last updated on May 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.