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

Dr. Emily Ann Hammer, DO

Individual provider Emergency Medicine Physician · NPI 1306189519

Dr. Emily Ann Hammer, DO practises Emergency Medicine in Grand Blanc, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 2013, 13 years ago. Practices with Observation Medicine Group PLLC, a 28-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
13
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2013
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

1 Genesys Pkwy
Grand Blanc, MI 48439-8065 Not confirmed with CMS for 10 years — call before visiting
Phone: (810) 606-6372
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 5101020254 (MI)

Record details

NPI number1306189519
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 5, 2013
Last updated in NPPESApril 1, 2016

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2013 (13 years in practice)
Group practice Observation Medicine Group Pllc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients320
Services billed 362 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 Observation Medicine Group PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 28 clinicians in the practice; 12 are shown here.

Other providers in Grand Blanc