Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Harold W. Horowitz, MD

Individual provider Infectious Disease Physician · NPI 1528084274

Harold W. Horowitz, MD is registered under Infectious Disease in Brooklyn, New York. Qualified in 1979, 47 years ago. Practices with Kings Physician Services PC, a 645-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
47
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

506 6th St
Brooklyn, NY 11215-3609
Phone: (718) 780-5257
Fax: (718) 780-3259
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 155554 (NY)

Record details

NPI number1528084274
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2006
Last updated in NPPESJuly 6, 2023
Certification dateJuly 6, 2023

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1979 (47 years in practice)
Group practice Kings Physician Services Pc — 645 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients53
Services billed 180 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Kings Physician Services PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 645 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn