Summary

Dr. David Harlan is an endocrinologist specializing in diabetes and metabolism, with additional expertise in internal medicine. He earned his medical degree from Duke University School of Medicine and brings 46 years of clinical experience to his practice. Dr. Harlan is fluent in English and Arabic.

Dr. Harlan practices at UMass Memorial Medical Center in Worcester, Massachusetts. He focuses on treating diabetes mellitus and managing complex cases including geriatric diabetes and hyperglycemic emergencies. His approach includes comprehensive blood work such as complete blood counts, A1c monitoring, and general blood tests to help patients manage their conditions effectively. Patients rate him 3.0 out of 5 stars on average.

Overview based on verified provider data

Quick Facts

  • 3
  • 46 years of experience
  • speaks English, Arabic
  • Duke University School Of Medicine
  • 2 specialties
  • 14 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Flexible scheduling

Office Locations

Dr. David Marshall Harlan has 2 locations

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Dr. David Marshall Harlan, MDDr. Alison K DuganDr. Jacqueline Alden HartDr. David K Taylor
Endocrinology, Diabetes & MetabolismInternal MedicineInternal MedicineInternal Medicine
46 Years of Experience 41 Years of Experience 34 Years of Experience 37 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Arabic
Worcester , MAWorcester , MADover , MAWoonsocket , RI
Med School: Duke University School Of Medicine Med School: Queens Univ Fac Of Med Med School: George Washington University School Of Medicine & Health Sciences Med School: Warren Alpert Medical School Of Brown University
Current Profile
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Insurance Plans Accepted by Dr. David Marshall Harlan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. David Marshall Harlan has the following 2 specialties

Specialty Expertise

Dr. David Marshall Harlan has the following 14 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Diabetes Mellitus, Type 1
  • Experimental Diabetes Mellitus
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Internal Medicine

Certifications, License, & Education

46 Years Experience

Dr. David Marshall Harlan holds an active medical license in the state of Massachusetts.

Medical License

Medical Doctor with an active medical license in the state of Massachusetts that expires in 2026.

Education & Training

Medical School

Graduated from Duke University School Of Medicine in 1980.

NPI Number

Dr. Harlan's NPI number is 1083737951.

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Frequently Asked Questions

Is Dr. David Harlan accepting new patients?
Dr. David Harlan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. David Harlan accept my insurance?
You can see the insurance plans that Dr. David Harlan accepts on their Vitals profile.
Which hospitals is Dr. David Harlan affiliated with?
Dr. David Harlan is affiliated with Umass Memorial Medical Center and Umass Memorial Medical Center.
Does Dr. David Harlan accept virtual/telehealth appointments?
Dr. David Harlan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. David Harlan?
You can find contact information for Dr. David Harlan here on Vitals.

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