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DR. GREG KOLODZIEJCZAK PSYD
NPI 1760715940
Psychologist - Clinical in Cambridge, MA

Active since September 06, 2009Opted out of Medicare · through Feb 17, 2027
106 WINTHROP ST, CAMBRIDGE, MA 02138(617) 595-7844 Get Directions Write a Review

NPPES record last updated: September 6, 2009. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Greg Kolodziejczak Psyd NPPES

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

DR. GREG KOLODZIEJCZAK PSYD (NPI 1760715940) is an individual clinical provider in Cambridge, Massachusetts, licensed in Massachusetts (8862) and active in the NPI registry since September 2009. He has opted out of Medicare through February 17, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1760715940
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. GREG KOLODZIEJCZAKCredential: PSYD
Location Address106 WINTHROP STCambridge, MA 02138-4930
Mailing Address106 Winthrop StCambridge, MA 02138-4930 · (617) 595-7844
Phone(617) 595-7844
Sole ProprietorYes
Enumeration DateSeptember 6, 2009
✔ NPI 1760715940 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MA · 8862
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
106 WINTHROP ST, Cambridge, MA 02138
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Greg Kolodziejczak Psyd has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 17, 2019 through February 17, 2027.

Opt-Out Effective DateFebruary 17, 2019
Opt-Out In Effect ThroughFebruary 17, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02138 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$189.86 typical visit price
range $63.72 – $189.86
Typical copayment $47.46 (range $15.93 – $47.46)
Most-billed visit code 99205
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

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

KERRIN MESECK MS, RD, LDN
Dietitian, Registered
106 WINTHROP ST
CAMBRIDGE, MA 02138
Middlesex County (617) 982-3933
CAROLYN ANNE RIEDER PH.D.
Psychologist (Clinical)
106 WINTHROP ST
CAMBRIDGE, MA 02138
Middlesex County (617) 855-3642
CHRISTINA J. CHAN
Dietitian, Registered
106 WINTHROP ST
CAMBRIDGE, MA 02138
Middlesex County (617) 982-3933
SARAH ANN SANDERS MD
Psychiatry & Neurology (Psychiatry)
106 WINTHROP ST
CAMBRIDGE, MA 02138
Middlesex County (617) 256-2278

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 Greg Kolodziejczak's NPI number?

The NPI number for Greg Kolodziejczak is 1760715940. It was assigned to this individual provider in the NPPES registry on September 6, 2009.

Where is Greg Kolodziejczak located?

Greg Kolodziejczak practices at 106 Winthrop St, Cambridge, MA 02138. The listed phone number is (617) 595-7844.

What is Greg Kolodziejczak's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Greg Kolodziejczak enrolled in Medicare?

No. Greg Kolodziejczak has opted out of Medicare through February 17, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Greg Kolodziejczak was last updated on September 6, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.