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Northwest Cancer Centers, PC

Q: What type of organization is Northwest Cancer Centers, PC?

Northwest Cancer Centers, PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in Dyer, IN · enumerated 2006 · authorized official Mohamad Kassar, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1578527826

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Registry record

Entity type Organization (Type 2)

Legal business name Northwest Cancer Centers, PC

Practice address 1001 Calumet Ave, Dyer, IN, 46311

Phone (219) 924-8178

Fax (219) 924-8314

Enumeration date Apr 13, 2006

Last updated in NPPES Oct 14, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Secondary

207VF0040X Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician Allopathic & Osteopathic Physicians Secondary

207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Mohamad Kassar

Title President

Phone (219) 924-8178

Other identifiers

Identifier	Type	State	Issuer
200448210	Medicaid	IN	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Northwest Cancer Centers, PC?

Northwest Cancer Centers, PC is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Providers at this address

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Sameer Sharma Gynecologic Oncology Physician · Dyer, IN NPI 1033278056 Mohamad Kassar Hematology & Oncology Physician · Dyer, IN NPI 1063691830 Neel Shah Hematology & Oncology Physician · Dyer, IN NPI 1356508915 Gowri Ramadas Hematology & Oncology Physician · Dyer, IN NPI 1528294998 Michael Tallarico Medical Oncology Physician · Dyer, IN NPI 1467773036 Shruti Singh Hematology & Oncology Physician · Dyer, IN NPI 1619210143 Amanda Nakashian Women's Health Nurse Practitioner · Dyer, IN NPI 1558783019 Melissa Krzus Family Nurse Practitioner · Dyer, IN NPI 1205243524

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-14.