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

Dr. David Lawrence Maslak, MD

Individual provider Hospitalist Physician · NPI 1477916179

Dr. David Lawrence Maslak, MD is an Internal Medicine in Derby, Connecticut. Qualified in 2016, 10 years ago. Practices with Griffin Faculty Physicians Inc, a 125-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
10
Licensed in
CT, NY
In the registry since
2016
Specialties on file
3
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

130 Division St
Derby, CT 06418-1326
Phone: (203) 732-1330
Fax: (203) 732-1332
Show map & directions

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

Additional practice locations (2)

  • 24 Hospital Ave, Danbury, CT 06810-6099 — (203) 739-8105
  • 670 Stoneleigh Ave, Carmel, NY 10512-3997 — (845) 279-5711

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 62720 (CT)
Hospitalist Physician Taxonomy 208M00000X · Licence 323344 (NY)
Hospitalist Physician Taxonomy 208M00000X · Licence 62720 (CT)

Record details

NPI number1477916179
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 30, 2016
Last updated in NPPESNovember 27, 2024
Certification dateNovember 27, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Griffin Faculty Physicians Inc — 125 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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