Dr. Daniel O\'Brien
Dr. Daniel O\'Brien
Last updated: Sep 18, 2025

Dr. Daniel O\'Brien

  • Gender: Male
  • Sole propriator: Yes
  • NPI: 1023512431

Dr. Daniel O\'Brien

Resident

He is located at 501 Deep Valley Drive Suite 100 in Rolling Hills Estates, CA 90274. His National Provider Identifier (NPI) number is 1023512431. Appointment can be made via the phone number (310) 303-3953.

Medicare Enrollment

Dr. Daniel O\'Brien is enrolled to bill Medicare as a Practitioner - Cardiovascular Disease (cardiology) (also registered under: Practitioner - Hospitalist, Practitioner - Internal Medicine) .

Bills through: The Regents Of The University Of California

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and is not a comment on insurance accepted, quality, outcomes, or board certification.

Looking for more Residents?

There are 6 other residents in this region.

Dr. Rachel Hannako Rangwala
  • Gender: Female
  • Address: 3101 Viaduct LA Selva Palos Verdes Estates, 90274, CA
Dr. Matthew Latham Macer
  • Gender: Male
  • Address: Suite 287 550 Deep Valley Drive Rolling Hills Estates, 90274, CA
Dr. Achal Singh Achrol
  • Gender: Male
  • Address: 11234 Anderson Street Room 2562-B Loma Linda, 92354, CA
Dr. Alex Katz
  • Gender: Male
  • Address: 101 The City Drive South Orange, 92868, CA
Dr. Camille Hamilton
  • Gender: Female
  • Address: 200 Ucla Medical Plaza Suite 265 Los Angeles, 90095, CA
Dr. Melissa Marie Hammill
  • Gender: Female
  • Address: 901 SILVER SPUR RD Rolling Hills Estates, 90274, CA
Dr. Preeti Jhorar
  • Gender: Female
  • Address: Suite 100 501 Deep Valley Drive Rolling Hills Estates, 90274, CA

Questions & Answers

Does Dr. Daniel O\'Brien accept insurance?

Unfortunately we don't have any information if Dr. Daniel O\'Brien accepts insurance.

Where can you meet with Dr. Daniel O\'Brien?

Dr. Daniel O\'Brien's office is located at 501 Deep Valley Drive Suite 100 in Rolling Hills Estates, CA 90274.