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

Mark A Tidswell, MD

Individual provider Pulmonary Disease Physician · NPI 1699722066

Mark A Tidswell, MD is a Critical Care (Intensivists) in Springfield, Massachusetts. Graduated from Oregon Health Sciences University School of Medicine in 1987, 39 years ago. Practices with Baystate Medical Practices Inc, a 1,346-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
39
Trained at
Oregon Health Sciences University School of Medicine
Licensed in
MA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

759 Chestnut Street S2668
Springfield, MA 01199
Phone: (413) 794-5439
Fax: (413) 794-5389
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 161219 (MA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 161219 (MA)

Record details

NPI number1699722066
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 30, 2006
Last updated in NPPESApril 1, 2011
Mailing address280 Chestnut Street, 2nd Floor, Springfield, MA 01199

Medicare enrollment

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

Medicare specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolOREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Baystate Medical Practices Inc — 1346 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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