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Dr. Anna S. Lok, MD


  • (734) 647-5944

Dr. Lok's Overview

Dr. Anna S. Lok graduated from the Univ of Hong Kong, Fac of Med, Hong Kong in 1977. She works in Ann Arbor, MI and specializes in Gastroenterology and Hepatology. Dr. Lok is affiliated with University Of Michigan Hospitals & Health Center.

Dr. Lok's Experience

Years in Practice: 38

Procedures Performed by Dr. Lok

Dr. Lok's Specialties

Gastroenterology, Hepatology

Dr. Lok's Education & Training

Medical School: Univ of Hong Kong, Fac of Med, Hong Kong; Graduated 1977

Dr. Lok's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Lok's Accepted Insurance

  • Aetna Choice POS II
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • BCBS MI Blue Care Network PCP Focus Network
  • BCBS MI PPO Plans - Group Employees
  • Blue Care Network
  • CIGNA Open Access Plus
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Dr. Lok's Office Information & Appointments

Office Locations

University Of Michigan Gastroenterology

1500 E Medical Center Dr Spc 5002
Ann Arbor, MI 48109
(734) 647-5944


Office Hours and Information

Fax: (734) 936-5458

Practice Website: Not Available

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 8:00 AM - 5:00 PM
Tuesday 8:00 AM - 5:00 PM
Wednesday 8:00 AM - 5:00 PM
Thursday 8:00 AM - 5:00 PM
Friday 8:00 AM - 5:00 PM
Saturday Closed
Sunday Closed

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Dr. Lok's Hospital Affiliations

Office Locations

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