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

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Doctors in Thousand Oaks, CA

396 doctors in Thousand Oaks, CA. 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. Advanced Care Multispecialty Medical Group Apc

    ActiveInternal Medicine, Nephrology

    Thousand Oaks, CA

    Proof for Advanced Care Multispecialty Medical Group Apc
    NPI registration
    NPPES 1164041422
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Nephrology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 497-7775
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  2. Advanced Gastroenterology, Inc.

    ActiveInternal Medicine, Gastroenterology

    Thousand Oaks, CA

    Proof for Advanced Gastroenterology, Inc.
    NPI registration
    NPPES 1497970875
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Gastroenterology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 719-0244
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  3. California Dermatology Institute PC

    ActiveDermatology

    Thousand Oaks, CA

    Proof for California Dermatology Institute PC
    NPI registration
    NPPES 1235671389
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Dermatology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 222-5803
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  4. California Institute of Neuroscience Inc

    ActivePsychiatry & Neurology, Vascular Neurology

    Thousand Oaks, CA

    Proof for California Institute of Neuroscience Inc
    NPI registration
    NPPES 1215593652
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Psychiatry & Neurology, Vascular Neurology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 795-7656
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  5. Christopher Costanzo M D Inc

    ActivePlastic Surgery, Surgery of the Hand

    Thousand Oaks, CA

    Proof for Christopher Costanzo M D Inc
    NPI registration
    NPPES 1114199163
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Plastic Surgery, Surgery of the Hand
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 373-9919
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  6. Proof for Clarity Surgical Group a Professional Medical Corporation
    NPI registration
    NPPES 1164348009
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Surgery
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 852-0852
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  7. Conejo Los Robles Anesthesiology Medical Group, Inc.

    ActiveAnesthesiology

    Thousand Oaks, CA

    Proof for Conejo Los Robles Anesthesiology Medical Group, Inc.
    NPI registration
    NPPES 1821171729
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Anesthesiology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 370-4521
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  8. Cristina S. Wiese. M.D. Inc.

    ActiveInternal Medicine, Gastroenterology

    Thousand Oaks, CA

    Proof for Cristina S. Wiese. M.D. Inc.
    NPI registration
    NPPES 1306156260
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Gastroenterology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 557-0452
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  9. Cse Medical Group Inc.

    ActiveOphthalmology

    Thousand Oaks, CA

    Proof for Cse Medical Group Inc.
    NPI registration
    NPPES 1215979844
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Ophthalmology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 497-3744
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  10. David D. Chi, M.D., F.A.C.S., a Medical Corp.

    ActiveSurgery, Surgical Oncology

    Thousand Oaks, CA

    Proof for David D. Chi, M.D., F.A.C.S., a Medical Corp.
    NPI registration
    NPPES 1154649796
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Surgery, Surgical Oncology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 497-7785
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  11. David Ghausi DO Inc

    ActiveObstetrics & Gynecology

    Thousand Oaks, CA

    Proof for David Ghausi DO Inc
    NPI registration
    NPPES 1396910915
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Obstetrics & Gynecology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 497-0244
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  12. Elvira Lindwall, M.D., a Medical Corporation

    ActiveInternal Medicine, Rheumatology

    Thousand Oaks, CA

    Proof for Elvira Lindwall, M.D., a Medical Corporation
    NPI registration
    NPPES 1639690001
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Rheumatology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 370-1965
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  13. Frederic J Leong MD Inc

    ActivePediatrics, Pediatric Cardiology

    Thousand Oaks, CA

    Proof for Frederic J Leong MD Inc
    NPI registration
    NPPES 1801953237
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Pediatrics, Pediatric Cardiology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 497-7214
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  14. Frontline Healthcare Endocrinology LLC

    ActiveInternal Medicine, Endocrinology, Diabetes & Metabolism

    Thousand Oaks, CA

    Proof for Frontline Healthcare Endocrinology LLC
    NPI registration
    NPPES 1538055066
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Internal Medicine, Endocrinology, Diabetes & Metabolism
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 449-1111
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  15. Hera Health Care

    ActiveObstetrics & Gynecology, Gynecology

    Thousand Oaks, CA

    Proof for Hera Health Care
    NPI registration
    NPPES 1700123569
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Obstetrics & Gynecology, Gynecology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 379-9110
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  16. John M Delgado MD Inc

    ActiveOrthopaedic Surgery

    Thousand Oaks, CA

    Proof for John M Delgado MD Inc
    NPI registration
    NPPES 1730564865
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Orthopaedic Surgery
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 497-9481
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  17. Kaditam V Reddy, M.D., Inc.

    ActivePsychiatry & Neurology, Neurology

    Thousand Oaks, CA

    Proof for Kaditam V Reddy, M.D., Inc.
    NPI registration
    NPPES 1104369552
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Psychiatry & Neurology, Neurology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 918-5008
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  18. Karie Mcmurray MD Inc a Medical Corporation

    ActiveObstetrics & Gynecology

    Thousand Oaks, CA

    Proof for Karie Mcmurray MD Inc a Medical Corporation
    NPI registration
    NPPES 1861557985
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Obstetrics & Gynecology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 371-4700
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  19. Kenneth L Saul MD, Inc.

    ActivePediatrics

    Thousand Oaks, CA

    Proof for Kenneth L Saul MD, Inc.
    NPI registration
    NPPES 1427179969
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Pediatrics
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 494-1948
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record
  20. Kiavash Nikkhou MD Inc

    ActiveUrology

    Thousand Oaks, CA

    Proof for Kiavash Nikkhou MD Inc
    NPI registration
    NPPES 1588198790
    Issuer
    NPPES NPI Registry
    Status
    Active
    Class
    Urology
    Checked
    Oct 25, 2026
    Where
    Thousand Oaks, CA · serves California
    Phone
    (805) 371-4707
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → NPPES NPI Registry record

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