Expertise in
22
conditions

Dr. Michael Callahan

Oncology
Ascension Medical Group St. Vincent-Indianapolis Gynecologic Cancer Care
8402 Harcourt Rd Ste 420, 
Indianapolis, IN 
Expertise in
22
conditions
Ascension Medical Group St. Vincent-Indianapolis Gynecologic Cancer Care
8402 Harcourt Rd Ste 420, 
Indianapolis, IN 

Overview

Michael Callahan is an Oncologist in Indianapolis, Indiana. Dr. Callahan is highly rated in 22 conditions, according to our data. His top areas of expertise are Ovarian Cancer, Vulvar Cancer, Endometrial Cancer, Oophorectomy, and Salpingo-Oophorectomy.

His clinical research consists of co-authoring 101 peer reviewed articles and participating in 20 clinical trials. MediFind looks at clinical research from the past 15 years.

Specialties

Oncology

Licenses

Obstetrics & Gynecology in IN

Hospital Affiliations

Ascension St Vincent Hospital
Ascension St Vincent Carmel
Ascension St Vincent Kokomo
Hendricks Regional Health
Ascension St Vincent Anderson

Languages Spoken

English

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareSource
  • HMO
Cigna
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
MDwise
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
TeamCare
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
US Health and Life
  • EPO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Zing Health
  • MEDICARE MAPD
  • MEDICARE SNP
View 10 Less Insurance Carriers -

Locations

Ascension Medical Group St. Vincent-Indianapolis Gynecologic Cancer Care
8402 Harcourt Rd Ste 420, Indianapolis, IN 46260

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

20 Clinical Trials

A Randomized Phase III, Two-Arm Trial of Paclitaxel/Carboplatin/Maintenance Letrozole Versus Letrozole Monotherapy in Patients With Stage II-IV, Primary Low-Grade Serous Carcinoma of the Ovary or Peritoneum
A Randomized Phase III, Two-Arm Trial of Paclitaxel/Carboplatin/Maintenance Letrozole Versus Letrozole Monotherapy in Patients With Stage II-IV, Primary Low-Grade Serous Carcinoma of the Ovary or Peritoneum
Enrollment Status: Active_not_recruiting
Publish Date: January 14, 2026
Intervention Type: Drug, Procedure
Study Drugs: Carboplatin, Letrozole, Paclitaxel
Study Phase: Phase 3
A Phase II Trial of Ribociclib (LEE011) Plus Letrozole in Women With Recurrent Low-Grade Serous Carcinoma of the Ovary, Fallopian Tube or Peritoneum
A Phase II Trial of Ribociclib (LEE011) Plus Letrozole in Women With Recurrent Low-Grade Serous Carcinoma of the Ovary, Fallopian Tube or Peritoneum
Enrollment Status: Active_not_recruiting
Publish Date: December 23, 2025
Intervention Type: Drug
Study Drugs: Ribociclib, Letrozole
Study Phase: Phase 2
A Phase II Study of Tazemetostat (EPZ-6438) in Recurrent or Persistent Endometrioid or Clear Cell Carcinoma of the Ovary, and Recurrent or Persistent Endometrioid Endometrial Adenocarcinoma
A Phase II Study of Tazemetostat (EPZ-6438) in Recurrent or Persistent Endometrioid or Clear Cell Carcinoma of the Ovary, and Recurrent or Persistent Endometrioid Endometrial Adenocarcinoma
Enrollment Status: Active_not_recruiting
Publish Date: December 03, 2025
Intervention Type: Procedure, Drug
Study Drug: Tazemetostat
Study Phase: Phase 2
A Randomized Phase II Study Comparing Single-Agent Olaparib, Single Agent Cediranib, and the Combinations of Cediranib/Olaparib, Olaparib/Durvalumab (MEDI4736), Cediranib/Durvalumab (MEDI4736), Olaparib/AZD5363 (Capivasertib) in Women With Recurrent, Persistent or Metastatic Endometrial Cancer. A Multi-Arm Trial for Women With Recurrent or Persistent Endometrial Cancer
A Randomized Phase II Study Comparing Single-Agent Olaparib, Single Agent Cediranib, and the Combinations of Cediranib/Olaparib, Olaparib/Durvalumab (MEDI4736), Cediranib/Durvalumab (MEDI4736), Olaparib/AZD5363 (Capivasertib) in Women With Recurrent, Persistent or Metastatic Endometrial Cancer. A Multi-Arm Trial for Women With Recurrent or Persistent Endometrial Cancer
Enrollment Status: Active_not_recruiting
Publish Date: December 03, 2025
Intervention Type: Drug, Procedure, Biological
Study Phase: Phase 2
A Randomized, Phase II/III Study of Pegylated Liposomal Doxorubicin and CTEP-Supplied Atezolizumab Versus Pegylated Liposomal Doxorubicin, CTEP-Supplied Bevacizumab and CTEP-Supplied Atezolizumab Versus Pegylated Liposomal Doxorubicin and CTEP-Supplied Bevacizumab in Platinum Resistant Ovarian Cancer
A Randomized, Phase II/III Study of Pegylated Liposomal Doxorubicin and CTEP-Supplied Atezolizumab Versus Pegylated Liposomal Doxorubicin, CTEP-Supplied Bevacizumab and CTEP-Supplied Atezolizumab Versus Pegylated Liposomal Doxorubicin and CTEP-Supplied Bevacizumab in Platinum Resistant Ovarian Cancer
Enrollment Status: Active_not_recruiting
Publish Date: December 02, 2025
Intervention Type: Other, Procedure, Drug, Biological
Study Drugs: Atezolizumab, Bevacizumab, Pegylated liposomal doxorubicin hydrochloride
Study Phase: Phase 2/Phase 3
A Randomized Phase III Trial of Radiation Therapy and Cisplatin Alone or in Combination With Intravenous Triapine in Women With Newly Diagnosed Bulky Stage IB2, Stage II, IIIB, or IVA Cancer of the Uterine Cervix or Stage II-IVA Vaginal Cancer
A Randomized Phase III Trial of Radiation Therapy and Cisplatin Alone or in Combination With Intravenous Triapine in Women With Newly Diagnosed Bulky Stage IB2, Stage II, IIIB, or IVA Cancer of the Uterine Cervix or Stage II-IVA Vaginal Cancer
Enrollment Status: Active_not_recruiting
Publish Date: December 01, 2025
Intervention Type: Radiation, Drug, Other
Study Drugs: Cisplatin, Triapine
Study Phase: Phase 3
A Phase III Study Comparing Single-Agent Olaparib or the Combination of Cediranib and Olaparib to Standard Platinum-Based Chemotherapy in Women With Recurrent Platinum-Sensitive Ovarian, Fallopian Tube, or Primary Peritoneal Cancer
A Phase III Study Comparing Single-Agent Olaparib or the Combination of Cediranib and Olaparib to Standard Platinum-Based Chemotherapy in Women With Recurrent Platinum-Sensitive Ovarian, Fallopian Tube, or Primary Peritoneal Cancer
Enrollment Status: Active_not_recruiting
Publish Date: December 01, 2025
Intervention Type: Drug, Procedure, Other
Study Drugs: Carboplatin, Cediranib Maleate, Gemcitabine, Gemcitabine Hydrochloride, Olaparib, Paclitaxel, Pegylated Liposomal Doxorubicin Hydrochloride
Study Phase: Phase 3
A Randomized Phase II/III Study of the Combination of Cediranib and Olaparib Compared to Cediranib or Olaparib Alone, or Standard of Care Chemotherapy in Women With Recurrent Platinum-Resistant or -Refractory Ovarian, Fallopian Tube, or Primary Peritoneal Cancer (COCOS)
A Randomized Phase II/III Study of the Combination of Cediranib and Olaparib Compared to Cediranib or Olaparib Alone, or Standard of Care Chemotherapy in Women With Recurrent Platinum-Resistant or -Refractory Ovarian, Fallopian Tube, or Primary Peritoneal Cancer (COCOS)
Enrollment Status: Active_not_recruiting
Publish Date: December 01, 2025
Intervention Type: Procedure, Drug, Other
Study Drugs: Cediranib, Cediranib Maleate, Olaparib, Paclitaxel, Pegylated Liposomal Doxorubicin Hydrochloride, Topotecan, Topotecan Hydrochloride
Study Phase: Phase 2/Phase 3
A Randomized Phase II/III Study to Assess the Efficacy of Trametinib (GSK 1120212) in Patients With Recurrent or Progressive Low-Grade Serous Ovarian Cancer or Peritoneal Cancer
A Randomized Phase II/III Study to Assess the Efficacy of Trametinib (GSK 1120212) in Patients With Recurrent or Progressive Low-Grade Serous Ovarian Cancer or Peritoneal Cancer
Enrollment Status: Completed
Publish Date: November 13, 2025
Intervention Type: Other, Drug
Study Drugs: Letrozole, Paclitaxel, Pegylated liposomal doxorubicin hydrochloride, Tamoxifen citrate, Topotecan, Trametinib dimethyl sulfoxide
Study Phase: Phase 2/Phase 3
A Phase 3, Randomized, Double-blind, Multicenter Study of Dostarlimab (TSR-042) Plus Carboplatin-paclitaxel Versus Placebo Plus Carboplatin-paclitaxel in Patients With Recurrent or Primary Advanced Endometrial Cancer (RUBY)
A Phase 3, Randomized, Double-blind, Multicenter Study of Dostarlimab (TSR-042) Plus Carboplatin-paclitaxel Versus Placebo Plus Carboplatin-paclitaxel in Patients With Recurrent or Primary Advanced Endometrial Cancer (RUBY)
Enrollment Status: Active_not_recruiting
Publish Date: September 03, 2025
Intervention Type: Drug, Biological
Study Drugs: Dostarlimab, Carboplatin, Paclitaxel, Niraparib
Study Phase: Phase 3
Phase II Randomized Trial of Nivolumab With or Without Ipilimumab in Patients With Persistent or Recurrent Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancer
Phase II Randomized Trial of Nivolumab With or Without Ipilimumab in Patients With Persistent or Recurrent Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancer
Enrollment Status: Completed
Publish Date: August 29, 2025
Intervention Type: Biological
Study Phase: Phase 2
A Phase I/II Study of Ruxolitinib With Front-Line Neoadjuvant and Post-Surgical Therapy in Patients With Advanced Epithelial Ovarian, Fallopian Tube or Primary Peritoneal Cancer
A Phase I/II Study of Ruxolitinib With Front-Line Neoadjuvant and Post-Surgical Therapy in Patients With Advanced Epithelial Ovarian, Fallopian Tube or Primary Peritoneal Cancer
Enrollment Status: Completed
Publish Date: May 25, 2025
Intervention Type: Drug, Procedure
Study Drugs: Carboplatin, Paclitaxel, Ruxolitinib phosphate
Study Phase: Phase 1/Phase 2
Randomized Phase III Clinical Trial of Adjuvant Radiation Versus Chemoradiation in Intermediate Risk, Stage I/IIA Cervical Cancer Treated With Initial Radical Hysterectomy and Pelvic Lymphadenectomy (NCT #01101451)
Randomized Phase III Clinical Trial of Adjuvant Radiation Versus Chemoradiation in Intermediate Risk, Stage I/IIA Cervical Cancer Treated With Initial Radical Hysterectomy and Pelvic Lymphadenectomy (NCT #01101451)
Enrollment Status: Completed
Publish Date: May 23, 2025
Intervention Type: Other, Radiation, Drug
Study Drug: Cisplatin
Study Phase: Phase 3
SORAYA: A Phase 3, Single Arm Study of Mirvetuximab Soravtansine in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha Expression
SORAYA: A Phase 3, Single Arm Study of Mirvetuximab Soravtansine in Platinum-Resistant, Advanced High-Grade Epithelial Ovarian, Primary Peritoneal, or Fallopian Tube Cancers With High Folate Receptor-Alpha Expression
Enrollment Status: Completed
Publish Date: August 07, 2024
Intervention Type: Drug
Study Drug: Mirvetuximab Soravtansine
Study Phase: Phase 3
A Phase II Study of MK-3475 (Pembrolizumab) (NSC #776864) + Epacadostat (NSC #766086) in Recurrent Clear Cell Carcinoma of the Ovary
A Phase II Study of MK-3475 (Pembrolizumab) (NSC #776864) + Epacadostat (NSC #766086) in Recurrent Clear Cell Carcinoma of the Ovary
Enrollment Status: Completed
Publish Date: July 26, 2024
Intervention Type: Drug, Biological
Study Phase: Phase 2
A Randomized, Controlled, Double-Arm, Double-Blind, Multi-Center Study of Ofranergene Obadenovec (VB-111) Combined With Paclitaxel vs. Paclitaxel Combined With Placebo for the Treatment of Recurrent Platinum-Resistant Ovarian Cancer
A Randomized, Controlled, Double-Arm, Double-Blind, Multi-Center Study of Ofranergene Obadenovec (VB-111) Combined With Paclitaxel vs. Paclitaxel Combined With Placebo for the Treatment of Recurrent Platinum-Resistant Ovarian Cancer
Enrollment Status: Completed
Publish Date: January 10, 2023
Intervention Type: Drug
Study Drugs: VB-111, Paclitaxel
Study Phase: Phase 3
A Phase III Trial of Adjuvant Chemotherapy Following Chemoradiation as Primary Treatment for Locally Advanced Cervical Cancer Compared to Chemoradiation Alone: The OUTBACK Trial
A Phase III Trial of Adjuvant Chemotherapy Following Chemoradiation as Primary Treatment for Locally Advanced Cervical Cancer Compared to Chemoradiation Alone: The OUTBACK Trial
Enrollment Status: Completed
Publish Date: November 07, 2022
Intervention Type: Other, Drug, Radiation
Study Drugs: Carboplatin, Cisplatin, Paclitaxel
Study Phase: Phase 3
A Phase III Randomized Trial of Pulse Actinomycin-D Versus Multi-day Methotrexate for the Treatment of Low-Risk Gestational Trophoblastic Neoplasia
A Phase III Randomized Trial of Pulse Actinomycin-D Versus Multi-day Methotrexate for the Treatment of Low-Risk Gestational Trophoblastic Neoplasia
Enrollment Status: Completed
Publish Date: August 12, 2022
Intervention Type: Other, Drug, Biological
Study Drugs: Dactinomycin, Leucovorin Calcium, Methotrexate
Study Phase: Phase 3
A Randomized Phase II Trial of Paclitaxel and Carboplatin vs. Bleomycin, Etoposide, and Cisplatin for Newly Diagnosed Advanced Stage and Recurrent Chemonaive Sex Cord-Stromal Tumors of the Ovary
A Randomized Phase II Trial of Paclitaxel and Carboplatin vs. Bleomycin, Etoposide, and Cisplatin for Newly Diagnosed Advanced Stage and Recurrent Chemonaive Sex Cord-Stromal Tumors of the Ovary
Enrollment Status: Unknown
Publish Date: January 25, 2022
Intervention Type: Biological, Drug, Other
Study Drugs: Bleomycin Sulfate, Carboplatin, Cisplatin, Etoposide Phosphate, Paclitaxel
Study Phase: Phase 2
A Randomized Phase II/III Study of Paclitaxel/Carboplatin/Metformin (NSC#91485) Versus Paclitaxel/Carboplatin/Placebo as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer
A Randomized Phase II/III Study of Paclitaxel/Carboplatin/Metformin (NSC#91485) Versus Paclitaxel/Carboplatin/Placebo as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer
Enrollment Status: Unknown
Publish Date: September 30, 2021
Intervention Type: Other, Drug
Study Drugs: Carboplatin, Metformin hydrochloride, Paclitaxel
Study Phase: Phase 2/Phase 3
View 19 Less Clinical Trials

101 Total Publications

Phase II Trial of Ribociclib Plus Letrozole in Women With Recurrent Low-Grade Serous Carcinoma of the Ovary, Fallopian Tube, or Peritoneum: A GOG Partners Trial (GOG 3026).
Phase II Trial of Ribociclib Plus Letrozole in Women With Recurrent Low-Grade Serous Carcinoma of the Ovary, Fallopian Tube, or Peritoneum: A GOG Partners Trial (GOG 3026).
Journal: Journal of clinical oncology : official journal of the American Society of Clinical Oncology
Published: December 12, 2025
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Frequently Asked Questions about Dr. Michael Callahan

How do I make an appointment with Dr. Michael Callahan?

You can book an appointment with Dr. Michael Callahan by calling their office at 317-415-6740. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Michael Callahan a top-rated expert for Ovarian Cancer?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Michael Callahan is classified as an Distinguished expert for Ovarian Cancer, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Michael Callahan specialize in?

While Dr. Michael Callahan is a Oncology, they have specific expertise in Ovarian Cancer, Vulvar Cancer, and Endometrial Cancer. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Oncology.

Does Dr. Michael Callahan participate in research or clinical trials?

Yes. Dr. Michael Callahan has published 101 articles and abstracts on conditions like Ovarian Cancer. You can view a list of Dr. Michael Callahan's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Michael Callahan accept my insurance?

Dr. Michael Callahan accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 317-415-6740 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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