Individual provider

Aleksandra Phillips, M.D.

Child & Adolescent Psychiatry Physician Psychiatry Physician Medicare enrolled

Aleksandra Phillips, M.D. is a Child & Adolescent Psychiatry Physician in Cambridge, MA, registered under NPI 1316018450. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 75 MOUNT AUBURN ST, Cambridge, MA 02138. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

75 MOUNT AUBURN ST, Cambridge, MA 02138 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
MD11599 HI Child & Adolescent Psychiatry Physician primary
14781R LA Psychiatry Physician
046215 CT Child & Adolescent Psychiatry Physician
277354 MA Child & Adolescent Psychiatry Physician
046215 CT Psychiatry Physician
MD14144 RI Psychiatry Physician
14781R LA Child & Adolescent Psychiatry Physician

Licences are recorded in 5 states: HI, LA, CT, MA, RI. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Psychiatry
PAC ID
7012969439

Enrolled in Medicare 4 times, across 4 states:

StateEnrollment IDProvider type
Connecticut I20081114000257 Practitioner - Psychiatry
Rhode Island I20130731000274 Practitioner - Psychiatry
Massachusetts I20190515001611 Practitioner - Psychiatry
North Carolina I20211117000687 Practitioner - Psychiatry

Medicare enrolment is recorded as approved under the provider type Practitioner - Psychiatry. There are 4 separate enrolment records across 4 states (CT, RI, MA, NC). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 5 states

This provider holds licences in 5 states: Connecticut, Hawaii, Louisiana, Massachusetts and Rhode Island. The practice address on file is in Cambridge, MA, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

CT Connecticut
Licence
046215
Specialty
Child & Adolescent Psychiatry Physician
Verify with the CT board →
HI Hawaii
Licence
MD11599
Specialty
Child & Adolescent Psychiatry Physician
Verify with the HI board →
LA Louisiana
Licence
14781R
Specialty
Psychiatry Physician
Verify with the LA board →
MA Massachusetts practice address
Licence
277354
Specialty
Child & Adolescent Psychiatry Physician
Verify with the MA board →
RI Rhode Island
Licence
MD14144
Specialty
Psychiatry Physician
Verify with the RI board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Child & Adolescent Psychiatry covers

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. NUCC Health Care Provider Taxonomy, code 2084P0804X
Allopathic & Osteopathic Physicians Psychiatry & Neurology Child & Adolescent Psychiatry

All registered taxonomy codes

This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
2084P0804X Child & Adolescent Psychiatry Physician Child & Adolescent Psychiatry MD11599 HI primary
2084P0800X Psychiatry Physician Psychiatry 14781R LA
2084P0804X Child & Adolescent Psychiatry Physician Child & Adolescent Psychiatry 046215 CT
2084P0804X Child & Adolescent Psychiatry Physician Child & Adolescent Psychiatry 277354 MA
2084P0800X Psychiatry Physician Psychiatry 046215 CT
2084P0800X Psychiatry Physician Psychiatry MD14144 RI
2084P0804X Child & Adolescent Psychiatry Physician Child & Adolescent Psychiatry 14781R LA

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1316018450 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 12, 2006
Last updatedOct 31, 2025
StatusActive
Sole proprietorYes
CredentialM.D.
Practice address 75 MOUNT AUBURN ST
Cambridge, MA 02138
(508) 923-5429
Fax (617) 495-8078
Mailing address 28 SALISBURY ST
Tiverton, RI 02878
Other identifiers 1573761 · Medicaid (LA)
This record was updated on Oct 31, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1316018450 passes the NPI check digit test The final digit 0 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 3 1 6 0 1 8 4 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 3 2 6 0 1 7 4 1

Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1316018450?
NPI 1316018450 is the National Provider Identifier assigned to Aleksandra Phillips, M.D. in Cambridge, MA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Child & Adolescent Psychiatry cover?
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.
How do I contact Aleksandra Phillips, M.D.?
The phone number on file with NPPES is (508) 923-5429, last updated Oct 31, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Aleksandra Phillips, M.D. accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1316018450 a valid number?
Yes. 1316018450 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.