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

Dr. Mark Sonnenschine, DO

Individual provider Internal Medicine Physician · NPI 1922291939

Dr. Mark Sonnenschine, DO is a Hematology/Oncology in Brooklyn, New York. Graduated from New York College of Osteo Medicine of New York Institute of Technology in 2003, 23 years ago. Practices with Physician Affiliate Group of New York PC, a 1,224-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
23
Trained at
New York College of Osteo Medicine of New York Institute of Technology
Licensed in
NY
In the registry since
2007
Specialties on file
2
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

6201 15th Ave # 305
Brooklyn, NY 11219-5411
Phone: (718) 775-2700
Fax: (718) 705-5804
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 705 Avenue U, Brooklyn, NY 11223-4133 — (718) 283-4232

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 242242 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 242242 (NY)

Record details

NPI number1922291939
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedAugust 22, 2007
Last updated in NPPESAugust 5, 2026
Certification dateAugust 5, 2026

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolNEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduated 2003 (23 years in practice)
Group practice Physician Affiliate Group Of New York Pc — 1224 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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