Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Sara L Mackerley, DO

Individual provider Anesthesiology Physician · NPI 1891944955

Dr. Sara L Mackerley, DO practises Anesthesiology in Chicago, Illinois. Qualified in 2006, 20 years ago. Practices with Mercy Medical Center, a 303-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
20
Licensed in
IL
In the registry since
2008
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

836 W Wellington Ave
Chicago, IL 60657-5147 Not confirmed with CMS for 18 years — call before visiting
Phone: (773) 296-7035
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 125051361 (IL)

Record details

NPI number1891944955
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 13, 2008
Last updated in NPPESSeptember 13, 2008

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Mercy Medical Center — 303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients207
Services billed 248 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mercy Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 303 clinicians in the practice; 12 are shown here.

Other providers in Chicago