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

Dr. Zachary Philip Lamaster, DO

Individual provider Family Medicine Physician · NPI 1265667810

Dr. Zachary Philip Lamaster, DO is a Family Practice in Chicago, Illinois. Graduated from Midwestern University, Chicago College of Osteopathic Med in 2009, 17 years ago. Practices with Advocate Health and Hospitals Corporation, a 3,079-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
17
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IL
In the registry since
2009
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

4600 N Ravenswood Ave Fl 2
Chicago, IL 60640
Phone: (773) 561-7500
Fax: (773) 561-7612
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5425 W Lake St, Chicago, IL 60644-2342 — (773) 378-3347

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036130431 (IL)

Record details

NPI number1265667810
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 27, 2009
Last updated in NPPESMarch 20, 2025
Certification dateMarch 20, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 2009 (17 years in practice)
Group practice Advocate Health And Hospitals Corporation — 3079 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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