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

Chelsey Ryan Malhas, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1730708694

Chelsey Ryan Malhas, MD is an Internal Medicine in Smithtown, New York. Qualified in 2020, 6 years ago. Practices with Southwest Suffolk Medical PC, a 200-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
6
Licensed in
NY
In the registry since
2020
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

50 New York Ave # 25A
Smithtown, NY 11787-3448
Phone: (631) 862-3000
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 327297 (NY)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 327297 (NY)

Record details

NPI number1730708694
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2020
Last updated in NPPESJune 25, 2026
Certification dateJune 25, 2026
Mailing address50 New York Ave # 25a, Smithtown, NY 11787-3448

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Southwest Suffolk Medical Pc — 200 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount