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

Plutarco E Castellanos, MD

Individual provider Internal Medicine Physician · NPI 1669463303

Plutarco E Castellanos, MD is a Pulmonary Disease in Leominster, Massachusetts. Qualified in 1997, 29 years ago. Practices with Mass Lung and Allergy PC, a 13-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
29
Licensed in
MA
In the registry since
2005
Specialties on file
4
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

50 Memorial Dr Ste 113
Leominster, MA 01453
Phone: (978) 466-2692
Fax: (978) 466-4754
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 211028 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 211208 (MA)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 211028 (MA)
Allergy & Immunology (Internal Medicine) Physician Taxonomy 207RA0201X · Licence 211028 (MA)

Record details

NPI number1669463303
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 2, 2005
Last updated in NPPESOctober 6, 2010

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Mass Lung And Allergy Pc — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Leominster