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Internal Medicine in Laguna Hills, California

Data updated monthly · Last refresh September 2026

56 Internal Medicine providers practice in Laguna Hills, and 43% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Laguna Hills

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Alan Lo, MD
Laguna Hills, CA · $1,457 in drug and device payments (2025) · Telehealth · (949) 768-4850
Dr. Ali Ghahraman, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 581-2002
Dr. Ali Ghazvini, M.D.
Laguna Hills, CA · $120 in drug and device payments (2025) · (949) 716-7700
Dr. Allen Jay, M.D
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 362-4560
Dr. Angela Basen, MD
Laguna Hills, CA · $324 in drug and device payments (2025) · Telehealth · (949) 204-3006
Dr. Arthur Daigneault, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 588-8700
Dr. Bijan Movafegh-jooryabi, D.O
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 900-6992
Dr. Brian Henry
Laguna Hills, CA · $77 in drug and device payments (2025) · (949) 588-8700
Dr. Cecilia Tran, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 420-5980
Dr. Charles Blumberg, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 238-4100
Dr. Chi-whei Lin, M.D.
Laguna Hills, CA · $316 in drug and device payments (2025) · (949) 716-4555
Dr. Curtis Siu, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 872-5227
Dr. David Huseby, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 373-7799
Dr. David Nah, DO
Laguna Hills, CA · $46 in drug and device payments (2025) · (949) 362-8877
Dr. David Teng, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 799-4786
Dr. Dzintris Vallis, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 334-8200
Dr. Ester Mark, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 903-8563
Dr. Farbod Farmand, D.O
Laguna Hills, CA · $1,632 in drug and device payments (2025) · (949) 555-5555
Dr. Gregory Lam, M.D.
Laguna Hills, CA · $19 in drug and device payments (2025) · Telehealth · (949) 238-4100
Dr. Homer Lew, D.O.
Laguna Hills, CA · $290 in drug and device payments (2025) · (949) 588-7262
Dr. Humberto Boccardo, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 951-7808
Dr. Hussien Saab, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 215-5055
Dr. Jason Hunt, D.O.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 768-4850
Dr. Julie Marshburn, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 768-4850
Dr. Konidala Naidu, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 770-7907
Dr. Lawrence Luppi, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 206-0360
Dr. Lori Clark
Laguna Hills, CA · $182 in drug and device payments (2025) · (949) 588-7262
Dr. Louis Scarcella, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 770-7691
Dr. Lynn Granlund, M. D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 373-7799
Dr. Mark Shields, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 588-8700
Dr. Marwan Edris, M.D.
Laguna Hills, CA · $22 in drug and device payments (2025) · (949) 364-9080
Dr. Maziar Zamani, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 404-5647
Dr. Michael Salzle
Laguna Hills, CA · $592 in drug and device payments (2025) · (949) 939-3756
Dr. Mozhgan Ashtari, M.D.
Laguna Hills, CA · $496 in drug and device payments (2025) · Telehealth · (949) 600-6334
Dr. Nermine Morcos-clark, MD
Laguna Hills, CA · $175 in drug and device payments (2025) · (949) 588-7262
Dr. Owrang Dastmalchi, D.O.
Laguna Hills, CA · $472 in drug and device payments (2025) · (949) 215-5055
Dr. Patrick Chaipat, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 855-1158
Dr. Paul Bixenstine, MD
Laguna Hills, CA · $109 in drug and device payments (2025) · (949) 366-1053
Dr. Paul Cassedy, M.D.
Laguna Hills, CA · $114 in drug and device payments (2025) · Telehealth · (949) 707-0005
Dr. Paul Strodtbeck, M. D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 373-7799
Dr. Pedram Ansari Pirsaraei, M.D.
Laguna Hills, CA · $415 in drug and device payments (2025) · (949) 799-4786
Dr. Piyanetr Sukhu, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 951-7808
Dr. Ralph Cummings, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 859-4433
Dr. Raymond Fernandez, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 465-8155
Dr. Reza Govashiri, M.D.
Laguna Hills, CA · $601 in drug and device payments (2025) · Telehealth · (949) 830-4201
Dr. Richard Greengold, M.D.
Laguna Hills, CA · $102 in drug and device payments (2025) · (949) 770-2080
Dr. Robert Lazatin, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 768-4850
Dr. Stefan Frolov, MD
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 452-3021
Dr. Teneese Nguyen, MD.
Laguna Hills, CA · No drug or device payments recorded (2025) · (949) 215-5055
Dr. Tracy Siegfried, M.D.
Laguna Hills, CA · No drug or device payments recorded (2025) · Telehealth · (949) 716-0833

Conditions Internal Medicine providers in Laguna Hills, California commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Laguna Hills, California?

There are 56 Internal Medicine providers with active NPI records practicing in Laguna Hills, according to federal NPPES data refreshed monthly.

How many Internal Medicine providers in Laguna Hills received drug or device company payments?

24 of 56 (43%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

What conditions do Internal Medicine providers in Laguna Hills treat?

Internal Medicine providers in Laguna Hills commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Laguna Hills Internal Medicine across California

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.