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DR. COLIN A SIEFF MB, BCH
NPI 1942382635
Pediatrics - Pediatric Hematology-Oncology in Boston, MA

Active since October 20, 2006PECOS Enrolled
300 LONGWOOD AVE, FEGAN 7, BOSTON, MA 02115(617) 258-5228(617) 258-6768 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Colin A Sieff Mb, Bch NPPES

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

DR. COLIN A SIEFF MB, BCH (NPI 1942382635) is an individual pediatric hematology-oncology provider in Boston, Massachusetts, licensed in Massachusetts (73641) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1942382635
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameDR. COLIN A SIEFFCredential: MB, BCH
Location Address300 LONGWOOD AVE, FEGAN 7Boston, MA 02115-5724
Mailing Address45 Orchard AveWaban, MA 02468-2001 · (617) 527-1417
Phone(617) 258-5228
Fax(617) 258-6768
Sole ProprietorNo
Enumeration DateOctober 20, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1942382635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in MA · 73641
Definition
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.
300 LONGWOOD AVE, Boston, MA 02115
Open in Google Maps ↗

Other Identifiers 3

Medicaid3087440MA
Medicare UPINF08215
Medicare ID-Type UnspecifiedJ11869

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Colin A Sieff Mb, Bch 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.

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 Colin Sieff's NPI number?

The NPI number for Colin Sieff is 1942382635. It was assigned to this individual provider in the NPPES registry on October 20, 2006.

Where is Colin Sieff located?

Colin Sieff practices at 300 Longwood Ave Fegan 7, Boston, MA 02115. The listed phone number is (617) 258-5228.

What is Colin Sieff's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is Colin Sieff enrolled in Medicare?

Yes. Colin Sieff is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Colin Sieff was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.