Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Mary Chao, DO

Individual provider Internal Medicine Physician · NPI 1881814002

Mrs. Mary Chao, DO is an Internal Medicine in Lansing, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 2004, 22 years ago. Practices with McLaren Greater Lansing, a 96-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
22
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1540 Lake Lansing Rd Ste 102
Lansing, MI 48912-3756
Phone: (517) 913-3810
Fax: (517) 913-3811
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 5101016242 (MI)

Record details

NPI number1881814002
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 27, 2007
Last updated in NPPESSeptember 11, 2012
Mailing address1540 Lake Lansing Rd, Suite 102, Lansing, MI 48912-3756

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2004 (22 years in practice)
Group practice McLaren Greater Lansing — 96 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Lansing