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

Dr. Matthew Michael Miller, DO

Individual provider Internal Medicine Physician · NPI 1639372360

Dr. Matthew Michael Miller, DO is a Hospitalist in Orange, California. Graduated from Lake Erie Col of Osteo Med at Seton Hill Univ in 2006, 20 years ago. Licensed in California, Ohio and Pennsylvania.

Years since qualifying
20
Trained at
Lake Erie Col of Osteo Med at Seton Hill Univ
Licensed in
CA, OH, PA
In the registry since
2007
Specialties on file
6
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

101 The City Dr S
Orange, CA 92868-3201
Phone: (714) 456-8888
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 20A24335 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence OT011861 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 20A24335 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence OS014149 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 34.015407 (OH)
Hospitalist Physician Taxonomy 208M00000X · Licence OS014149 (PA)

Record details

NPI number1639372360
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 8, 2007
Last updated in NPPESNovember 7, 2025
Certification dateNovember 7, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolLAKE ERIE COL OF OSTEO MED AT SETON HILL UNIV
Graduated 2006 (20 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 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 patients23
Services billed 82 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Travel and Lodging $495 4 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $259 3 payments · a meal or drink at a meeting or visit, 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.

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