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DR. AARON PHILIP NELSON PH.D.
NPI 1124096920
Clinical Neuropsychologist in Boston, MA

Active since March 09, 2006PECOS Enrolled
221 LONGWOOD AVE, BRIGHAM BEHAVIORAL NEUROLOGY GROUP, BOSTON, MA 02115(617) 732-8060(617) 738-9122 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Aaron Philip Nelson Ph.d. NPPES

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

DR. AARON PHILIP NELSON PH.D. (NPI 1124096920) is an individual clinical neuropsychologist in Boston, Massachusetts, licensed in Massachusetts (3482) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124096920
Entity TypeIndividualMale
Primary Taxonomy103G00000X
Provider Legal NameDR. AARON PHILIP NELSONCredential: PH.D.
Location Address221 LONGWOOD AVE, BRIGHAM BEHAVIORAL NEUROLOGY GROUPBoston, MA 02115-5804
Mailing Address221 Longwood Ave, Brigham Behavioral Neurology GroupBoston, MA 02115-5804 · (617) 732-8060 · Fax (617) 738-9122
Phone(617) 732-8060
Fax(617) 738-9122
Sole ProprietorYes
Enumeration DateMarch 9, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1124096920 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
License✔ Licensed in MA · 3482
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 3482 (MA)
221 LONGWOOD AVE, Boston, MA 02115
Open in Google Maps ↗

Other Identifiers 7

Other703415MA · Tufts Associated Health P
Medicare ID-Type UnspecifiedW03606MA
Medicaid0514748MA
Other001336MA · Value Options Health Care
OtherW03606MA · Blue Cross Blue Shield Ma
Other32259MA · Harvard Pilgrim Health Ca
Medicare UPINR44124

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aaron Philip Nelson Ph.d. 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 Aaron Nelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Brigham & Womens Physicians Organization Inc
0.3 mi
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
NPI 1033535497 (617) 732-5500

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.

MS. BLAIR D MANNING GARRIDO LICSW
Social Worker (Clinical)
221 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 732-6753
DANIEL WILLIAM CRAMER MD SCD
Obstetrics & Gynecology (Gynecology)
221 LONGWOOD AVE, BRIGHAM AND WOMENS HOSP DEPT OF OBSTETRICS AND GYNECOLO
BOSTON, MA 02115
Suffolk County (617) 732-4895
DANIEL M GRIMES M.D.
Psychiatry & Neurology (Psychiatry)
221 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 667-2300
REENA KAPOOR M.D.
Psychiatry & Neurology (Psychiatry)
221 LONGWOOD AVE, 4TH FL/PSYCHIATRY
BOSTON, MA 02115
Suffolk County (617) 667-2300
QUENTIN REGESTEIN MD
Specialist
221 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 739-1340
CHRISTINE MICHELLE CORNEJO
Dermatology
221 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 732-5500
BRIGHAM AND WOMEN'S HOSPITAL
General Acute Care Hospital
221 LONGWOOD AVE, BWH-ENDOCRINOLOGY
BOSTON, MA 02115
Suffolk County (617) 525-8867
DR. FARRAH BUCKHOREE MD, PHD
Dermatology
221 LONGWOOD AVE
BOSTON, MA 02115
Suffolk County (617) 732-5500

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 Aaron Nelson's NPI number?

The NPI number for Aaron Nelson is 1124096920. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Where is Aaron Nelson located?

Aaron Nelson practices at 221 Longwood Ave Brigham Behavioral Neurology Group, Boston, MA 02115. The listed phone number is (617) 732-8060.

What is Aaron Nelson's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Aaron Nelson enrolled in Medicare?

Yes. Aaron Nelson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Aaron Nelson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Nelson reassigns Medicare benefits to Brigham & Womens Physicians Organization 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 Aaron Nelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Aaron Nelson 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.