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MICHELLE XIAO-XIAO LAROSA MD
NPI 1568990299
Radiology - Diagnostic Radiology in Boston, MA

Active since May 25, 2017PECOS Enrolled
300 LONGWOOD AVE DEPT OF, BOSTON, MA 02115(412) 862-5702(516) 663-8796 Get Directions Write a Review

NPPES record last updated: January 26, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 26, 2023, May 25, 2017 (2 updates tracked since 2017).

About Michelle Xiao-xiao Larosa Md NPPES

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

MICHELLE XIAO-XIAO LAROSA MD (NPI 1568990299) is an individual diagnostic radiology provider in Boston, Massachusetts, licensed in Massachusetts (292095) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with Boston Children's Hospital, and is a graduate of New York Medical College (2017).

NPPES Registry Identity

NPI1568990299
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameMICHELLE XIAO-XIAO LAROSACredential: MD
Location Address300 LONGWOOD AVE DEPT OFBoston, MA 02115-5724
Mailing Address330 Park Hill AveYonkers, NY 10705-2441
Phone(412) 862-5702
Fax(516) 663-8796
Sole ProprietorNo
Medical School CMSNew York Medical CollegeGraduated 2017
Enumeration DateMay 25, 2017
Last NPPES UpdateJanuary 26, 20232 updates tracked since enumeration
NPPES CertifiedJanuary 26, 2023
✔ NPI 1568990299 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in MA · 292095
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
300 LONGWOOD AVE DEPT OF, Boston, MA 02115
Open in Google Maps ↗

Other Names 1

Former Name (1)Xiao Xiao Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michelle Xiao-xiao Larosa Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7810353372
PECOS Enrollment IDI20230525002389
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 Michelle Larosa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Children's Hospital Radiology Foundation, Inc.
Same address
Diagnostic Radiology
300 LONGWOOD AVE, DEPARTMENT OF RADIOLOGY
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 77 clinicians in this Medicare group
NPI 1487681912 (617) 355-8382

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Boston Children's Hospital

Childrens · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number223302
Location300 Longwood AvenueBoston, MA 02115 · Suffolk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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 12

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KRISTEN LYNN SZOLOMAYER MSN, FNP-BC, CNP
Nurse Practitioner (Family)
300 LONGWOOD AVE DEPT OF
BOSTON, MA 02115
Suffolk County (617) 355-6000
DR. JONATHAN OREN LIPTON M.D., PH.D.
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
300 LONGWOOD AVE DEPT OF, FEGAN 11
BOSTON, MA 02115
Suffolk County (617) 355-2067
MRS. MARIETTE TYEDMERS CO
Technician/Technologist (Orthoptist)
300 LONGWOOD AVE DEPT OF
BOSTON, MA 02115
Suffolk County (617) 355-6845
SARAH ELIZABETH FLEET MD
Pediatrics (Pediatric Gastroenterology)
300 LONGWOOD AVE DEPT OF
BOSTON, MA 02115
Suffolk County (212) 355-6000
MS. CATHERINE CAILLOUETTE RN, CPNP
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE DEPT OF
BOSTON, MA 02115
Suffolk County (617) 355-2340
DR. ASHWIN PRAKASH
Pediatrics (Pediatric Cardiology)
300 LONGWOOD AVE DEPT OF
BOSTON, MA 02115
Suffolk County (617) 355-7366
KATHERINE ROSEMARY MCALEESE MD
Pediatrics (Pediatric Infectious Diseases)
300 LONGWOOD AVE DEPT OF
BOSTON, MA 02115
Suffolk County (617) 355-6000
DR. RITA M GARRIDO AU.D., CCC-A, FAAA
Audiologist
300 LONGWOOD AVE DEPT OF
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 Michelle Larosa's NPI number?

The NPI number for Michelle Larosa is 1568990299. It was assigned to this individual provider in the NPPES registry on May 25, 2017. The provider is also known as Xiao Xiao MD.

Where is Michelle Larosa located?

Michelle Larosa practices at 300 Longwood Ave Dept Of, Boston, MA 02115. The listed phone number is (412) 862-5702.

What is Michelle Larosa's specialty?

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

Is Michelle Larosa enrolled in Medicare?

Yes. Michelle Larosa is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michelle Larosa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Larosa reassigns Medicare benefits to Children's Hospital Radiology Foundation, 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 Michelle Larosa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michelle Larosa accept?

Health plans from Taro Health list Michelle Larosa 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.

Is Michelle Larosa affiliated with any hospitals?

According to CMS data, Michelle Larosa is affiliated with Boston Children's Hospital.

When was this NPI record last updated?

The NPPES record for Michelle Larosa was last updated on January 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.