ALEXANDRA M. KOLOSSOVSKY PA-C
NPI 1538836820
Physician Assistant in Boston, MA
About Alexandra M. Kolossovsky Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDRA M. KOLOSSOVSKY PA-C (NPI 1538836820) is an individual physician assistant in Boston, Massachusetts, licensed in Massachusetts (PA101702) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Alexandra M. Kolossovsky Pa-c 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.
Areas of Expertise CMS Part B claims
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore Medical Center -
Acute Care Hospitals · Salem, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAStrong Memorial Hospital
Acute Care Hospitals · Rochester, NYPhysician 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.
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.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Alexandra Kolossovsky's NPI number?
The NPI number for Alexandra Kolossovsky is 1538836820. It was assigned to this individual provider in the NPPES registry on August 25, 2021.
Where is Alexandra Kolossovsky located?
Alexandra Kolossovsky practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-5500.
What is Alexandra Kolossovsky's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Alexandra Kolossovsky enrolled in Medicare?
Yes. Alexandra Kolossovsky 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.
What insurance does Alexandra Kolossovsky accept?
Health plans from Anthem Blue Cross and Blue Shield list Alexandra Kolossovsky 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 Alexandra Kolossovsky affiliated with any hospitals?
According to CMS data, Alexandra Kolossovsky is affiliated with North Shore Medical Center -, Massachusetts General Hospital, Brigham And Women's Hospital, Faulkner Hospital-Brigham And Women's and Strong Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Alexandra Kolossovsky was last updated on November 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.
# Alexandra M. Kolossovsky, PA-C · NPI 1538836820
Physician Assistant physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since August 25, 2021.
## Identity
- **NPI:** 1538836820 (Entity type: Individual)
- **Enumerated:** August 25, 2021
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** PA101702 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 75 FRANCIS ST, Boston, MA 02115-6110
- **Phone:** (617) 732-5500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** November 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1538836820) · Data from the CMS NPPES public registry.