Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Robert L Neilan, MD

Individual provider Hospitalist Physician · NPI 1689763724

Robert L Neilan, MD practises Internal Medicine in Fountain Valley, California. Graduated from West Virginia University School of Medicine in 1994, 32 years ago. Practices with Memorialcare Medical Foundation, a 562-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
32
Trained at
West Virginia University School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

17360 Brookhurst St
Fountain Valley, CA 92708-3720
Phone: (949) 340-9530
Fax: (714) 665-4614
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1201 W La Veta Ave, Orange, CA 92868-4213 — (714) 288-3230

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence A70376 (CA)

Record details

NPI number1689763724
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 12, 2006
Last updated in NPPESMarch 27, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolWEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice Memorialcare Medical Foundation — 562 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients331
Services billed 952 a service is one billed item, such as a visit, a test or a procedure
Average patient age80

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Memorialcare Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 562 clinicians in the practice; 12 are shown here.

Other providers in Fountain Valley