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

Stephen G Sisselman, DO

Individual provider Internal Medicine Physician · NPI 1609948884

Stephen G Sisselman, 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 Sisselman Medical Group PC, a 5-clinician group, accepts Medicare assignment and offers telehealth. 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

627 Broadway Ste 1
Massapequa, NY 11758-5031
Phone: (516) 308-4040
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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 216161 (NY)

Record details

NPI number1609948884
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 14, 2006
Last updated in NPPESOctober 12, 2022
Certification dateOctober 12, 2022
Mailing address627 Broadway, Suite 1, Massapequa, NY 11758-5031

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 Sisselman Medical Group Pc — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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