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

Dr. Amy Lum Tobin, DO

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1093743007

Dr. Amy Lum Tobin, DO practises Endocrinology in Sterling Heights, Michigan. Graduated from Michigan State University College of Human Medicine in 1990, 36 years ago. Practices with Grunberger Diabetes Medical Center PC, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
36
Trained at
Michigan State University College of Human Medicine
Licensed in
MI
In the registry since
2006
Specialties on file
2
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

38731 Mound Rd Ste 200
Sterling Heights, MI 48310-3210 Not confirmed with CMS for 13 years — call before visiting
Phone: (586) 939-8480
Fax: (586) 939-8487
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 5101010948 (MI)
Nuclear Imaging & Therapy Physician Taxonomy 207UN0902X · Licence 5101010948 (MI)

Record details

NPI number1093743007
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 29, 2006
Last updated in NPPESNovember 20, 2012

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 1990 (36 years in practice)
Group practice Grunberger Diabetes Medical Center Pc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients145
Services billed 1,018 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $5,384 159 payments · a meal or drink at a meeting or visit, not a fee
Education $72 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Grunberger Diabetes Medical Center PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Sterling Heights