Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Hollis Raquel London, DO

Individual provider Emergency Medicine Physician · NPI 1538456165

Dr. Hollis Raquel London, DO practises Emergency Medicine in Fairfield, California. Qualified in 2011, 15 years ago. Practices with Northbay Physicians Surgery Center, LLC, a 337-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Licensed in
CA
In the registry since
2011
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1200 B Gale Wilson Blvd
Fairfield, CA 94533-3552 Not confirmed with CMS for 10 years — call before visiting
Phone: (707) 646-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 20A14426 (CA)

Record details

NPI number1538456165
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 4, 2011
Last updated in NPPESJune 24, 2016

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Northbay Physicians Surgery Center, Llc — 337 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients205
Services billed 363 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Northbay Physicians Surgery Center, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 337 clinicians in the practice; 12 are shown here.

Other providers in Fairfield