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

Dr. Douglas C Johnson, MD

Individual provider Pulmonary Disease Physician · NPI 1710969738

Dr. Douglas C Johnson, MD is registered under Pulmonary Disease in Springfield, Massachusetts. Graduated from Harvard Medical School in 1976, 50 years ago. Practices with Baystate Medical Practices Inc, a 1,346-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
50
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2005
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

3300 Main St 2nd Fl Ste A
Springfield, MA 01107-1112
Phone: (413) 794-7330
Fax: (413) 794-8163
Show map & directions

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

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 43956 (MA)

Record details

NPI number1710969738
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 16, 2005
Last updated in NPPESDecember 22, 2017

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 1976 (50 years in practice)
Group practice Baystate Medical Practices Inc — 1346 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients779
Services billed 1,782 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at Baystate Medical Practices Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1346 clinicians in the practice; 12 are shown here.

Other providers in Springfield