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

Stuart Horowitz, DO

Individual provider Family Medicine Physician · NPI 1972661155

Stuart Horowitz, DO is a Family Practice in Massapequa, New York. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1977, 49 years ago. Practices with Ronald C Fagan MD PC, a 4-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
49
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
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

99 Grand Ave
Massapequa, NY 11758-1203
Phone: (516) 541-9700
Fax: (516) 798-1086
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 134589 (NY)

Record details

NPI number1972661155
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedDecember 4, 2006
Last updated in NPPESMay 16, 2008
Mailing address99 Grand Ave, Massapequa, NY 11758-1203

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 1977 (49 years in practice)
Group practice Ronald C Fagan Md Pc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Massapequa