CARLENE M MACMILLAN M.D.
NPI 1689801417
Psychiatry & Neurology - Child & Adolescent Psychiatry in Brooklyn, NY
About Carlene M Macmillan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CARLENE M MACMILLAN M.D. (NPI 1689801417) is an individual child & adolescent psychiatry provider in Brooklyn, New York, licensed in New York (278517) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (2009).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Carlene M Macmillan 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.
Medicare Billing Reassignments
4Medicare enrollment records show Carlene Macmillan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11249
- Reassigned Medicare billing, New York enrollment
- 16 clinicians in this Medicare group
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 clinicians in this Medicare group
Belmont, MA 02478
- Reassigned Medicare billing, Massachusetts enrollment
- 422 clinicians in this Medicare group
San Diego, CA 92121
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROOKLYN, NY 11249
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 Carlene Macmillan's NPI number?
The NPI number for Carlene Macmillan is 1689801417. It was assigned to this individual provider in the NPPES registry on June 19, 2009.
Where is Carlene Macmillan located?
Carlene Macmillan practices at 58 N 9th St Ste 103, Brooklyn, NY 11249. The listed phone number is (929) 227-6577.
What is Carlene Macmillan's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Carlene Macmillan enrolled in Medicare?
Yes. Carlene Macmillan 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.
Which organizations bill Medicare for Carlene Macmillan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carlene Macmillan reassigns Medicare benefits to 4 organizations: Nyc Psychiatrist Services P.C. (Brooklyn, NY), Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA), The Mclean Hospital Corporation (Belmont, MA) and Owen Muir MD Psychiatry Ca PC (San Diego, CA). 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 Carlene Macmillan'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 Carlene Macmillan was last updated on May 23, 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.
# Carlene M Macmillan, M.D. · NPI 1689801417
Child & Adolescent Psychiatry physician in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since June 19, 2009.
## Identity
- **NPI:** 1689801417 (Entity type: Individual)
- **Enumerated:** June 19, 2009
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** 278517 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 58 N 9TH ST STE 103, Brooklyn, NY 11249-2018
- **Phone:** (929) 227-6577
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Nyc Psychiatrist Services P.C. (NPI 1598236283, Brooklyn, NY); Mass General Brigham Medical Group Suburban Massachusetts Inc (NPI 1538191218, Newton, MA); The Mclean Hospital Corporation (NPI 1114979580, Belmont, MA); Owen Muir MD Psychiatry Ca PC (NPI 1871388611, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2009
## Record status
- **NPPES last updated:** May 23, 2023
- **Other identifiers:** Medicaid 110094989A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1689801417) · Data from the CMS NPPES public registry.