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

Maria E Diaz, MD

Individual provider Internal Medicine Physician · NPI 1023124880

Maria E Diaz, MD is an Internal Medicine in Lawrence, Massachusetts. Qualified in 1999, 27 years ago. Practices with Greater Lawrence Family Health Center Inc, a 118-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
27
Licensed in
MA
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

150 Park St
Lawrence, MA 01841-2517
Phone: (978) 685-1770
Fax: (978) 682-5787
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 227339 (MA)

Record details

NPI number1023124880
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2006
Last updated in NPPESNovember 4, 2015
Mailing address150 Park St, Lawrence, MA 01841-2517

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Greater Lawrence Family Health Center Inc — 118 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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