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ANN CHACKO DO
NPI 1912469552
Pediatrics - Neonatal-Perinatal Medicine in Boston, MA

Active since April 03, 2019PECOS Enrolled
800 WASHINGTON ST, BOSTON, MA 02111(617) 636-5000 Get Directions Write a Review

NPPES record last updated: April 19, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 3, 2019, Apr 3, 2019 (2 updates tracked since 2019).

About Ann Chacko Do NPPES

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

ANN CHACKO DO (NPI 1912469552) is an individual neonatal-perinatal medicine provider in Boston, Massachusetts, licensed in Wisconsin (77085-21) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1912469552
Entity TypeIndividualFemale
Primary Taxonomy2080N0001X
Provider Legal NameANN CHACKOCredential: DO
Location Address800 WASHINGTON STBoston, MA 02111-1552
Mailing Address301 University Blvd Galveston Tx 7755Galveston, TX 77555-0354 · (409) 747-0534 · Fax (409) 747-0721
Phone(617) 636-5000
Sole ProprietorNo
Enumeration DateApril 3, 2019
Last NPPES UpdateApril 19, 20252 updates tracked since enumeration
NPPES CertifiedApril 19, 2025
✔ NPI 1912469552 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in WI · 77085-21
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
800 WASHINGTON ST, Boston, MA 02111
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ann Chacko Do 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 Ann Chacko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pratt Pediatric Associates Inc
Same address
Pediatrics
800 WASHINGTON ST, BOX 1013
Boston, MA 02111
  • Reassigned Medicare billing, Massachusetts enrollment
  • 202 clinicians in this Medicare group
NPI 1477590511 (617) 636-5000

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.

AARON DICKSTEIN M.D.
Internal Medicine (Gastroenterology)
800 WASHINGTON ST, BOX 233
BOSTON, MA 02111
Suffolk County (617) 636-5883
THOMAS E BIGELOW
Technician/Technologist (Optician)
800 WASHINGTON ST, BOX 450
BOSTON, MA 02111
Suffolk County (617) 636-5857
SARAH MERRIMAN PERSING M.D.
Plastic Surgery
800 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (617) 636-5000
DR. SHARANYA MOHANTY M.D.
Internal Medicine
800 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (617) 636-5000
AFRAH SADIQ SAIT MOHAMMED M.D.
Internal Medicine (Infectious Disease)
800 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (718) 629-7204
ADNAN SALIM QAMAR MD
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (617) 636-5829
ALICIA SIGIA WU MD
Psychiatry & Neurology (Psychiatry)
800 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (617) 636-1619
ZEANAARONEVAN ANDRES LUNA
Student in an Organized Health Care Education/Training Program
800 WASHINGTON ST
BOSTON, MA 02111
Suffolk County (617) 636-8100

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 Ann Chacko's NPI number?

The NPI number for Ann Chacko is 1912469552. It was assigned to this individual provider in the NPPES registry on April 3, 2019.

Where is Ann Chacko located?

Ann Chacko practices at 800 Washington St, Boston, MA 02111. The listed phone number is (617) 636-5000.

What is Ann Chacko's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Ann Chacko enrolled in Medicare?

Yes. Ann Chacko is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ann Chacko's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Chacko reassigns Medicare benefits to Pratt Pediatric Associates 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 Ann Chacko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ann Chacko accept?

Health plans from Anthem Blue Cross and Blue Shield list Ann Chacko as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ann Chacko was last updated on April 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.