Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael Joseph Vortmann, MD

Individual provider Emergency Medicine Physician · NPI 1225204068

Michael Joseph Vortmann, MD practises Emergency Medicine in Boston, Massachusetts. Graduated from University of California, San Francisco School of Medicine in 2004, 22 years ago. Practices with Lahey Clinic Inc, a 1,372-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
22
Trained at
University of California, San Francisco School of Medicine
Licensed in
MA
In the registry since
2008
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

88 E Newton St Boston Medical Ctr Dept OF Emergency Medicine
Boston, MA 02118-2308
Phone: (617) 414-4929
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 41 Mall Road, Burlington, MA 01805 — (781) 744-8000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 225405 (MA)

Record details

NPI number1225204068
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 1, 2008
Last updated in NPPESJanuary 10, 2020
Certification dateJanuary 10, 2020

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Lahey Clinic Inc — 1372 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 patients516
Services billed 562 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

  • Lahey Hospital & Medical Center, Burlington Hospital · Burlington, MA

Colleagues at Lahey Clinic Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1372 clinicians in the practice; 12 are shown here.

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