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MR. JAMES BREW MCKENZIE
NPI 1386952299
Psychiatry & Neurology - Child & Adolescent Psychiatry in Cambridge, MA

Active since September 14, 2010PECOS Enrolled
89.57/100
CMS Quality Rating
1439 CAMBRIDGE ST, CAMBRIDGE, MA 02139(617) 665-1187(617) 665-3449 Get Directions Write a Review

NPPES record last updated: April 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 10, 2026, Jan 30, 2026, May 4, 2023 and 1 more (4 updates tracked since 2021).

About Mr. James Brew Mckenzie NPPES

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

MR. JAMES BREW MCKENZIE (NPI 1386952299) is an individual child & adolescent psychiatry provider in Cambridge, Massachusetts, licensed in Tennessee (4309) and active in the NPI registry since September 2010. He is enrolled in Medicare PECOS, maintains a secondary practice location in Cambridge, and is a graduate of Lincoln Mem Univ, Debusk Col Of Osteopathic Med (2015).

NPPES Registry Identity

NPI1386952299
Entity TypeIndividualMale
Primary Taxonomy2084P0804X
Provider Legal NameMR. JAMES BREW MCKENZIE
Location Address1439 CAMBRIDGE STCambridge, MA 02139-1106
Mailing Address210 25th Ave N Ste 1220Nashville, TN 37203-1640 · (615) 669-3579 · Fax (615) 622-8871
Phone(617) 665-1187
Fax(617) 665-3449
Sole ProprietorYes
Medical School CMSLincoln Mem Univ, Debusk Col Of Osteopathic MedGraduated 2015
Enumeration DateSeptember 14, 2010
Last NPPES UpdateApril 10, 20264 updates tracked since enumeration
NPPES CertifiedApril 10, 2026
✔ NPI 1386952299 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
Licenses✔ Licensed in TN · 4309✔ Licensed in MA · 277675
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
1439 CAMBRIDGE ST, Cambridge, MA 02139
Open in Google Maps ↗

Secondary Practice Location 1

Location 1700 Massachusetts Ave Fl 3Cambridge, MA 02139-3345 · Phone (888) 500-2067 · Fax (617) 649-8520

Accepted Insurance

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. James Brew Mckenzie is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2365745148
PECOS Enrollment IDI20260416000389
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 Reassignments

3

Medicare enrollment records show James Mckenzie reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cartwheel Health Services PC
0.6 mi
Child & Adolescent Psychiatry
700 MASSACHUSETTS AVE FL 3
Cambridge, MA 02139
  • Reassigned Medicare billing, Massachusetts enrollment
  • 83 clinicians in this Medicare group
NPI 1912633975 (888) 500-2067
Meharry Medical College
943 mi
Clinic/Center
1005 DR. D. B. TODD BLVD
Nashville, TN 37208
  • Reassigned Medicare billing, Tennessee enrollment
  • 118 clinicians in this Medicare group
NPI 1205859279 (615) 327-5592
Iac Associates PLLC
1,127 mi
Mental Health
6401 POPLAR AVE STE 500
Memphis, TN 38119
  • Reassigned Medicare billing, Tennessee enrollment
  • 8 clinicians in this Medicare group
NPI 1487126272 (901) 746-9438

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

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.57/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality65.45
Promoting Interoperability99
Improvement Activities40

Other Providers at the Same Location NPPES 10

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

DR. JAMES MARTIN QUINN MD
Anesthesiology
1439 CAMBRIDGE ST, CAMBRIDGE HOSPITAL ANESTHESIA
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1630
CAMILA RENE AZUERO MSW, LICSW
Social Worker (Clinical)
1439 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 575-5661
KIANA TUCKER
Licensed Practical Nurse
1439 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000
MS. ALEXANDRA SANTAMARIA PHARMD
Pharmacist
1439 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-2738
DANNY DO
Internal Medicine
1439 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1000
LAURA JANE MILLER M.D.
Psychiatry & Neurology (Psychiatry)
1439 CAMBRIDGE ST, ROOM 206 MACHT BUILDING
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1187
DR. DAVID STEPHEN SIRIGNANO PHARM.D.
Pharmacist
1439 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1438
ANNABEL GILL
Social Worker
1439 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Middlesex County (617) 665-1185

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 James Mckenzie's NPI number?

The NPI number for James Mckenzie is 1386952299. It was assigned to this individual provider in the NPPES registry on September 14, 2010.

Where is James Mckenzie located?

James Mckenzie practices at 1439 Cambridge St, Cambridge, MA 02139. The listed phone number is (617) 665-1187.

What is James Mckenzie's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is James Mckenzie enrolled in Medicare?

Yes. James Mckenzie is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Mckenzie's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Mckenzie reassigns Medicare benefits to 3 organizations: Cartwheel Health Services PC (Cambridge, MA), Meharry Medical College (Nashville, TN) and Iac Associates PLLC (Memphis, TN). Each 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 James Mckenzie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Mckenzie accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource, Cigna Healthcare, Harvard Pilgrim Health Care and Oscar Insurance Company and 2 other insurers list James Mckenzie 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 James Mckenzie was last updated on April 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.