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Internal medicine · Valencia, CA

Internal medicine for adults in the Santa Clarita Valley.

Dr. Nastran Hashemi, M.D., MHA is board-certified by the American Board of Internal Medicine, with more than 20 years in medicine and residency training through the UCSF Fresno program.

What an internist does

Internists are specialists in adult medicine. The training goes deep on the conditions that accumulate over a lifetime — heart disease, diabetes, hypertension, thyroid and hormone disorders, kidney and liver disease — and on how those conditions interact with one another.

Where a general practitioner treats broadly across all ages, an internist is the physician you want when your health picture has more than one moving part.

Dr. Hashemi’s background

Board-certified in internal medicine by the American Board of Internal Medicine. Residency completed through the University of California, San Francisco (Fresno) medical education program. Additional graduate training in healthcare administration.

She sees patients in English and Farsi.

Conditions commonly managed

  • Type 2 diabetes and prediabetes
  • High blood pressure and high cholesterol
  • Thyroid and hormone disorders
  • Weight management
  • Respiratory conditions including asthma and COPD
  • Preventive care and cancer screening coordination
  • Complex patients with several conditions at once

How to be seen

We accept most major insurance and are taking new patients. Request an appointment online or call (661) 200-0066 — we respond within one business day.

Service area

Serving the Santa Clarita Valley

Patients come to our Valencia office from across the Santa Clarita Valley — Saugus, Newhall, Canyon Country, Stevenson Ranch, Castaic, and the surrounding communities. If you’re searching for a primary care doctor or internist near you, we’d be glad to meet you.

Book in 60 seconds

Request a visit with Dr. Hashemi

Fill out five quick fields and we’ll call or text you within one business day to confirm your time. Most major insurance accepted — no membership required.

  • Same-week appointments for new patients
  • Same-day access for concierge members
  • Scheduling only — no medical details required
Now accepting new patients

Please don’t include medical details in this form — it’s for scheduling only. We’ll collect health information securely at your visit.

or call (661) 200-0066

We’ll call or text you within one business day to confirm.

Visit us

In Valencia, for the Santa Clarita Valley.

Our office is on Valencia Blvd, minutes from Valencia Town Center — an easy drive from Saugus, Newhall, Canyon Country, Stevenson Ranch, Castaic, and the rest of Santa Clarita.

23838 Valencia Blvd., Suite 150Valencia, CA 91355(661) 200-0066Mon, Wed–Fri · 9a–5p (closed Tuesdays)