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John M. Koostra, MD – Natividad: Inspiring healthy lives Salinas - Natividad Medical Center (Natividad Hospital) is a 172-bed, acute-care teaching hospital in Salinas, CA, owned by Monterey County and affiliated with UCSF. - Mission: “Inspiring healthy lives” by providing care to all patients, regardless of ability to pay. - Leadership/Medical staff: Includes physicians and department leaders; Dr. John M. - Services: Level II trauma center; family medicine residency; bariatric surgery center; multiple specialty and primary care clinics; emergency department with ~52,000 visits per year. - Accreditation: Joint Commission; recognized for UCSF affiliation and teaching hospital status on the Central Coast. - Location: 1441 Constitution Blvd, Salinas, CA 93906. Helipad and trauma capabilities noted. - Contact: Main phone (831) 755-4111. If you need further details on Dr. Koostra’s role, specialty, or contact information within Natividad, I can look up and summarize that specifically.

Clinic Type

Pulmonology

Address

D'Arrigo Family Specialty Services, 1441 Constitution Blvd., Bldg. 200, Salinas, CA 93901

Phone

831-755-4156

Email

nmcfmres@natividad.com

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

Team

  • John M. Koostra, MD — Pulmonology / Pulmonary Disease

Insurance & Payment

Languages Spoken

  • English

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • WebMD Care: 4.5 out of 5 stars (based on 16 ratings) (16 ratings)
  • Sharecare: 5.0 out of 5 stars (based on 2 ratings) (2 ratings)

Patients praise

  • Thorough and comprehensive examinations
  • Approachable bedside manner
  • Good listener who asks questions
  • Knowledgeable and masterful clinical approach
  • Courteous office staff

Common complaints

  • One patient reported concerns regarding medication management (changing antibiotics without an in-person visit)

"Dr Koostra has a very approachable style. He listens. He asks questions. Then he has a masterful approach, leaving no possibility off of his list. He tests extensively, and he gives you hope that he can find the cause of virtually any medical issue."

Sharecare

"Dr. John Koostra is bar none the best doctor hands down! He took an oath when he graduated medical school to care for..."

Yelp

"changed antibiotics 3 times without seeing"

WebMD Care

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 10, 2026.

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