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NAICS 621111 · Offices of Physicians (except Mental Health Specialists)

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Doctors in Smithtown, NY

272 doctors in Smithtown, NY. Every listing checked against the issuer's record, in the published order.

Health practices are listed so you can find them. Contact them directly; DouxProcess does not pass health requests.

  1. Branch Pediatrics and Adolescent Group P.C.

    ActivePediatrics

    Smithtown, NY

    Proof for Branch Pediatrics and Adolescent Group P.C.
    NPI registration
    NPPES 1740552942
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Pediatrics
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 979-6466
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  2. Brian Margolis, M.D. and Anthony Spadaro, M.D., L.L.P.

    ActiveInternal Medicine, Pulmonary Disease

    Smithtown, NY

    Proof for Brian Margolis, M.D. and Anthony Spadaro, M.D., L.L.P.
    NPI registration
    NPPES 1326273939
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Pulmonary Disease
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 360-8481
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  3. David Michael Horowitz, MD PC

    ActiveInternal Medicine

    Smithtown, NY

    Proof for David Michael Horowitz, MD PC
    NPI registration
    NPPES 1487951968
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 724-4048
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  4. Dr Michael Kaplan DO PC

    ActiveInternal Medicine

    Smithtown, NY

    Proof for Dr Michael Kaplan DO PC
    NPI registration
    NPPES 1912086000
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 366-2333
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  5. Endocrine Associates of Long Island, PC

    ActiveInternal Medicine, Endocrinology, Diabetes & Metabolism

    Smithtown, NY

    Proof for Endocrine Associates of Long Island, PC
    NPI registration
    NPPES 1619200896
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Endocrinology, Diabetes & Metabolism
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 265-5501
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  6. Glass & Inserra, M.D P.C.

    ActiveOrthopaedic Surgery

    Smithtown, NY

    Proof for Glass & Inserra, M.D P.C.
    NPI registration
    NPPES 1710156500
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Orthopaedic Surgery
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 360-2200
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  7. Harvey Gutman, MD PC

    ActiveUrology

    Smithtown, NY

    Proof for Harvey Gutman, MD PC
    NPI registration
    NPPES 1235293770
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Urology
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 862-3700
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  8. Infectious Disease Medical Practice of NY LLC

    ActiveInternal Medicine, Infectious Disease

    Smithtown, NY

    Proof for Infectious Disease Medical Practice of NY LLC
    NPI registration
    NPPES 1225255524
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Infectious Disease
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 864-6111
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  9. Island Plastic Surgery, PC

    ActiveSurgery, Surgery of the Hand

    Smithtown, NY

    Proof for Island Plastic Surgery, PC
    NPI registration
    NPPES 1679228993
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Surgery, Surgery of the Hand
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 540-0022
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  10. Kalter Physical Medicine & Rehabilitation PC

    ActivePhysical Medicine & Rehabilitation, Pain Medicine

    Smithtown, NY

    Proof for Kalter Physical Medicine & Rehabilitation PC
    NPI registration
    NPPES 1720526999
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Physical Medicine & Rehabilitation, Pain Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 361-5300
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  11. Leon NP Family Health Care PLLC

    ActiveFamily Medicine

    Smithtown, NY

    Proof for Leon NP Family Health Care PLLC
    NPI registration
    NPPES 1710807524
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Family Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (646) 236-5620
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  12. Long Island Gastroenterology and Liver Disease P.C.

    ActiveInternal Medicine

    Smithtown, NY

    Proof for Long Island Gastroenterology and Liver Disease P.C.
    NPI registration
    NPPES 1194025973
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 265-0062
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  13. Long Island Medical Office, PLLC

    ActivePhysical Medicine & Rehabilitation

    Smithtown, NY

    Proof for Long Island Medical Office, PLLC
    NPI registration
    NPPES 1336517242
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Physical Medicine & Rehabilitation
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 656-8270
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  14. Mcclain Laboratories LLC

    ActivePathology, Anatomic Pathology & Clinical Pathology

    Smithtown, NY

    Proof for Mcclain Laboratories LLC
    NPI registration
    NPPES 1144283912
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Pathology, Anatomic Pathology & Clinical Pathology
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 361-4000
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  15. Middle Country Endocrinology, PC

    ActiveInternal Medicine, Endocrinology, Diabetes & Metabolism

    Smithtown, NY

    Proof for Middle Country Endocrinology, PC
    NPI registration
    NPPES 1295068930
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Endocrinology, Diabetes & Metabolism
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 509-0390
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  16. Mirza Orthopedics PC

    ActiveOrthopaedic Surgery

    Smithtown, NY

    Proof for Mirza Orthopedics PC
    NPI registration
    NPPES 1043881196
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Orthopaedic Surgery
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 361-5302
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  17. New York Spine Care Medical, PC

    ActivePhysical Medicine & Rehabilitation, Pain Medicine

    Smithtown, NY

    Proof for New York Spine Care Medical, PC
    NPI registration
    NPPES 1801155130
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Physical Medicine & Rehabilitation, Pain Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 656-6853
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  18. North Shore Digestive Medicine PC

    ActiveInternal Medicine, Gastroenterology

    Smithtown, NY

    Proof for North Shore Digestive Medicine PC
    NPI registration
    NPPES 1407114960
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Gastroenterology
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (516) 488-9427
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  19. North Shore Psychiatric Consultants PC

    ActivePsychiatry & Neurology, Psychiatry

    Smithtown, NY

    Proof for North Shore Psychiatric Consultants PC
    NPI registration
    NPPES 1558489864
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Psychiatry & Neurology, Psychiatry
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 265-6868
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  20. Omni Medical 360 PLLC

    ActiveInternal Medicine

    Smithtown, NY

    Proof for Omni Medical 360 PLLC
    NPI registration
    NPPES 1114780525
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine
    Checked
    Oct 25, 2026
    Where
    Smithtown, NY · serves New York
    Phone
    (631) 813-7788
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record

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