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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CASANDRA CHEN MD
NPI 1710500244
Psychiatry & Neurology - Neurology in Boston, MA

Active since May 19, 2020PECOS Enrolled
800 WASHINGTON ST, BOSTON, MA 02111(617) 636-5000 Get Directions Write a Review

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

Record update history: Oct 8, 2026, May 19, 2020 (2 updates tracked since 2020).

About Casandra Chen Md NPPES

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

CASANDRA CHEN MD (NPI 1710500244) is an individual neurology provider in Boston, Massachusetts, licensed in Massachusetts (1027913) and active in the NPI registry since May 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710500244
Entity TypeIndividualFemale
Primary Taxonomy2084N0400X
Provider Legal NameCASANDRA CHENCredential: MD
Location Address800 WASHINGTON STBoston, MA 02111-1552
Mailing Address800 Washington StBoston, MA 02111-1552 · (617) 636-5000
Phone(617) 636-5000
Sole ProprietorYes
Enumeration DateMay 19, 2020
Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1710500244 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in MA · 1027913
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
800 WASHINGTON ST, Boston, MA 02111
Open in Google Maps ↗

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)

Casandra Chen Md 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 Casandra Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pratt Neurology Associates, Inc
Same address
Neurology
800 WASHINGTON ST, BOX 1013
Boston, MA 02111
  • Reassigned Medicare billing, Massachusetts enrollment
  • 40 clinicians in this Medicare group
NPI 1841237617 (617) 636-5000

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 02111 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
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
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.

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 Casandra Chen's NPI number?

The NPI number for Casandra Chen is 1710500244. It was assigned to this individual provider in the NPPES registry on May 19, 2020.

Where is Casandra Chen located?

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

What is Casandra Chen's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Casandra Chen enrolled in Medicare?

Yes. Casandra Chen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Casandra Chen's services?

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

What insurance does Casandra Chen accept?

Health plans from Anthem Blue Cross and Blue Shield list Casandra Chen 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 Casandra Chen was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.