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

John M Spielmann, MD

Individual provider Anesthesiology Physician · NPI 1114958022

John M Spielmann, MD practises Anesthesiology in Buffalo, Minnesota. Graduated from University of Pittsburgh School of Medicine in 1995, 31 years ago. Practices with Metropolitan Anesthesia Network LLP, a 519-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
31
Trained at
University of Pittsburgh School of Medicine
Licensed in
MN
In the registry since
2006
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

303 Catlin St
Buffalo, MN 55313-1947 Not confirmed with CMS for 19 years — call before visiting
Phone: (763) 682-1212
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 39232 (MN)

Record details

NPI number1114958022
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Metropolitan Anesthesia Network Llp — 519 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
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 patients181
Services billed 193 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

  • Buffalo Hospital Hospital · Buffalo, MN

Colleagues at Metropolitan Anesthesia Network LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 519 clinicians in the practice; 12 are shown here.

Other providers in Buffalo