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

Dr. Oren Schaefer, MD

Individual provider Pulmonary Disease Physician · NPI 1649252065

Dr. Oren Schaefer, MD is a Pulmonary Disease in Worcester, Massachusetts. Graduated from Geisel School of Medicine at Dartmouth in 1986, 40 years ago. Practices with Mass Lung and Allergy PC, a 13-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
40
Trained at
Geisel School of Medicine at Dartmouth
Licensed in
MA
In the registry since
2005
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

33 Oak Ave
Worcester, MA 01605
Phone: (508) 926-8240
Fax: (508) 926-8580
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 72485 (MA)
Allergy & Immunology (Internal Medicine) Physician Taxonomy 207RA0201X · Licence 72485 (MA)

Record details

NPI number1649252065
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 20, 2005
Last updated in NPPESAugust 14, 2012
Mailing addressPo Box 726, Leominster, MA 01453

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesALLERGY/IMMUNOLOGY, CRITICAL CARE (INTENSIVISTS)
Medical schoolGEISEL SCHOOL OF MEDICINE AT DARTMOUTH
Graduated 1986 (40 years in practice)
Group practice Mass Lung And Allergy Pc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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