Summary

Dr. Norman Callahan is a gastroenterologist with 35 years of experience specializing in digestive health disorders. He earned his medical degree from Philadelphia College of Osteopathic Medicine and completed his residency at Lankenau Medical Center. Dr. Callahan speaks Spanish and French, allowing him to communicate with a diverse patient population.

Dr. Callahan practices at Lankenau Medical Center and maintains offices in Malvern, Wynnewood, and Lancaster, Pennsylvania. He specializes in treating colon polyps, diverticular disease, and diverticulosis. His expertise includes performing colonoscopies and lower gastrointestinal endoscopy procedures to diagnose and monitor digestive conditions. Patients have given him an average rating of 4.1 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.1
  • 35 years of experience
  • 47 insurance plans accepted
  • speaks Spanish, French
  • Lankenau Medical Center
  • 6 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Norman Mattock Callahan has 4 locations

Us Digestive Health

325 Central Ave Ste 200Malvern, PA 19355
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Lankenau Medical Center

100 E Lancaster AveWynnewood, PA 19096

Us Digestive Health

2112 Harrisburg Pike Ste 202Lancaster, PA 17601
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Main Line Endoscopy Center Malvern

700 STEEL LN STE 100MALVERN, PA 19355
Mon7:30 am - 5:00 pm
Tue7:30 am - 5:00 pm
Wed7:30 am - 5:00 pm
Thu7:30 am - 5:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

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Dr. Norman Mattock Callahan, DO
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Dr. Norman Mattock Callahan, DODr. Dhruvan N. Patel, MDDr. Steven Lichtenstein, DOEmily Lacek, PA-C
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
3.6 
35 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, French Speaks Spanish, Italian
Malvern , PADarby , PADarby , PADarby , PA
Med School: Philadelphia College Of Osteopathic Medicine Med School: Medical College Baroda (India) Med School: Philadelphia College of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. Norman Mattock Callahan

  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna - Medicare
  • AmeriHealth
  • AmeriHealth - HMO
  • Assurant Health
  • Blue Cross Blue Shield
  • Capital Blue Cross
  • Cenpatico
  • CHAMPVA
  • Cigna
  • Dean Health Plan
  • Devoted Health
  • Devoted Health - Medicare
  • First Health (Coventry Health Care) - Medicaid (Managed)
  • Gateway Health
  • Gateway Health - Medicare
  • GEHA
  • Geisinger Health Plan
  • Golden Rule
  • Harvard Pilgrim Health Care
  • Health Partners Plans (Pennsylvania)
  • Health Partners Plans (Pennsylvania) - Medicaid (Managed)
  • HealthPartners
  • HealthPartners - Medicaid (Managed)
  • Highmark Blue Shield
  • Humana
  • Independence Blue Cross
  • Keystone First
  • Keystone First - Medicaid (Managed)
  • Medica
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Mutual of Omaha - Medicare
  • Nippon Life Benefits
  • STLDentalPlan| LLC
  • Transamerica
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • UPMC Health Plan
  • UPMC Health Plan - Medicaid (Managed)

Medical Specialties

Dr. Norman Mattock Callahan has the following specialty

Specialty Expertise

Dr. Norman Mattock Callahan has the following 10 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

35 Years Experience

Dr. Norman Mattock Callahan holds an active medical license in the state of Pennsylvania.

Medical License

Doctor Of Osteopathy with an active medical license in the state of Pennsylvania that expires in 2026.

Education & Training

Residency

Completed their residency at Lankenau Medical Center.

Medical School

Graduated from Philadelphia College Of Osteopathic Medicine in 1991.

NPI Number

Dr. Callahan's NPI number is 1851367783.

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Frequently Asked Questions

What languages does Dr. Norman Mattock Callahan speak?
Dr. Norman Mattock Callahan speaks Spanish and French.
Does Dr. Norman Mattock Callahan accept my insurance?
You can see the insurance plans that Dr. Norman Mattock Callahan accepts on their Vitals profile.
Is Dr. Norman Mattock Callahan accepting new patients?
Dr. Norman Mattock Callahan is accepting new patients on Vitals. View Dr. Norman Mattock Callahan's profile on Vitals to make an appointment.
Where is Dr. Norman Mattock Callahan's office located?
Dr. Norman Mattock Callahan's office is located at 325 Central Ave Ste 200, Malvern, PA, 19355.
Which hospitals is Dr. Norman Mattock Callahan affiliated with?
Dr. Norman Mattock Callahan is affiliated with Lankenau Medical Center.

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