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

Robert Alexander, DO

Individual provider Internal Medicine Physician · NPI 1912956301

Robert Alexander, DO is an Internal Medicine in Massapequa, New York. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 1996, 30 years ago. Practices with Northwell Healthcare Inc, a 17-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
30
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
NY
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

896 N Broadway
Massapequa, NY 11758-2328
Phone: (516) 541-2233
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 207736 (NY)

Record details

NPI number1912956301
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESJune 9, 2015
Mailing address850 Hicksville Rd Ste 104, Seaford, NY 11783-1300

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 1996 (30 years in practice)
Group practice Northwell Healthcare Inc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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