1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Radiology
  6. NPI Profile

ILSE CASTRO-ARAGON M.D.
NPI 1043244221
Radiology - Diagnostic Radiology in Boston, MA

Active since July 11, 2006PECOS EnrolledAccepts Medicare Assignment
840 HARRISON AVE, BOSTON, MA 02118(617) 638-6610(617) 638-6616 Get Directions Write a Review

NPPES record last updated: March 2, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 2, 2026, Dec 16, 2025, Apr 3, 2024 and 1 more (4 updates tracked since 2022).

About Ilse Castro-aragon M.d. NPPES

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

ILSE CASTRO-ARAGON M.D. (NPI 1043244221) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (227109) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1043244221
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameILSE CASTRO-ARAGONCredential: M.D.
Location Address840 HARRISON AVEBoston, MA 02118-2905
Mailing Address960 Massachusetts Ave, Fl 2Boston, MA 02118-2690
Phone(617) 638-6610
Fax(617) 638-6616
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateJuly 11, 2006
Last NPPES UpdateMarch 2, 20264 updates tracked since enumeration
NPPES CertifiedMarch 2, 2026
✔ NPI 1043244221 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in MA · 227109
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedRadiology · Pediatric RadiologyTaxonomy 2085P0229X · License 227109 (MA)
840 HARRISON AVE, Boston, MA 02118
Open in Google Maps ↗

Other Names 1

Other Name (5)Ilse Maria Castro-aragon M.d.

Secondary Practice Locations 3

Location 1235 North Pearl StBrockton, MA 02301 · Phone (508) 427-2665
Location 210 Gove StreetEast Boston, MA 02128 · Phone (617) 569-5800
Location 3736 Cambridge StBrighton, MA 02135 · Phone (617) 789-3000

Other Identifiers 3

Medicaid3092332NH
Medicaid1043244221ME
Medicaid110075074AMA

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

Ilse Castro-aragon M.d. 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 ID840291787
PECOS Enrollment IDI20070120000039
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02118 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
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
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.

ALEXANDER R. OLIVER PA-C
Physician Assistant
840 HARRISON AVE, MENINO BUILDING
BOSTON, MA 02118
Suffolk County (617) 638-8609
DAVIDA MARTI SCHIFF I M.D.
Pediatrics
840 HARRISON AVE, MENINO 1
BOSTON, MA 02118
Suffolk County (617) 414-4511
MYOUNG JIN KIM MD
Radiology (Vascular & Interventional Radiology)
840 HARRISON AVE
BOSTON, MA 02118
Suffolk County (617) 638-6610
DR. SABRINA QUI RONG LIEW MD
Student in an Organized Health Care Education/Training Program
840 HARRISON AVE
BOSTON, MA 02118
Suffolk County (617) 638-8000
DR. ASHLEY DAVIDOFF MB, BCH
Radiology (Diagnostic Radiology)
840 HARRISON AVE
BOSTON, MA 02118
Suffolk County (617) 638-6610
DARLENE M KAMEL NP
Nurse Practitioner (Acute Care)
840 HARRISON AVE, MENINO BUILDING
BOSTON, MA 02118
Suffolk County (617) 638-8609
CHRISTINA A LEBEDIS MD
Radiology (Diagnostic Radiology)
840 HARRISON AVE
BOSTON, MA 02118
Suffolk County (617) 638-6610
RACHEL W THOMPSON M.D.
Pediatrics (Pediatric Emergency Medicine)
840 HARRISON AVE, MENINO 1
BOSTON, MA 02118
Suffolk County (617) 414-4991

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 Ilse Castro-aragon's NPI number?

The NPI number for Ilse Castro-aragon is 1043244221. It was assigned to this individual provider in the NPPES registry on July 11, 2006. The provider is also known as Ilse Maria Castro-Aragon M.D..

Where is Ilse Castro-aragon located?

Ilse Castro-aragon practices at 840 Harrison Ave, Boston, MA 02118. The listed phone number is (617) 638-6610.

What is Ilse Castro-aragon's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Ilse Castro-aragon enrolled in Medicare?

Yes. Ilse Castro-aragon 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.

When was this NPI record last updated?

The NPPES record for Ilse Castro-aragon was last updated on March 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.