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

Stephanie Lemaster, MD

Individual provider Surgery Physician · NPI 1609230036

Stephanie Lemaster, MD practises General Surgery in Alpena, Michigan. Qualified in 2016, 10 years ago. Practices with Mymichigan Medical Group, a 178-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
10
Licensed in
MI
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

311 Long Rapids Plz
Alpena, MI 49707-1375
Phone: (989) 354-5717
Fax: (989) 356-6526
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 4301505518 (MI)

Record details

NPI number1609230036
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2016
Last updated in NPPESOctober 26, 2021
Certification dateOctober 26, 2021

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Mymichigan Medical Group — 178 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 57 times · 66th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 40 times · 60th percentile
Hernia repair - groin (open) 1–10 times
Mastectomy 1–10 times
Melanoma (skin cancer) excision 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients165
Services billed 268 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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. Those with a page here are linked.

Colleagues at Mymichigan Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 178 clinicians in the practice; 12 are shown here.

Other providers in Alpena