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

Rachel May, MD

Individual provider Emergency Medicine Physician · NPI 1609810209

Rachel May, MD practises Emergency Medicine in Arroyo Grande, California. Graduated from New York Medical College in 2002, 24 years ago. Practices with Kristopher Lyon, MD and Rachel May, MD, a Medical Corporation, a 4-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Trained at
New York Medical College
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

345 S Halcyon Rd
Arroyo Grande, CA 93420-3896 Not confirmed with CMS for 18 years — call before visiting
Phone: (805) 489-4261
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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 A94123 (CA)

Record details

NPI number1609810209
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2006
Last updated in NPPESJanuary 31, 2008

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 2002 (24 years in practice)
Group practice Kristopher Lyon, Md And Rachel May, Md, A Medical Corporation — 4 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 patients288
Services billed 554 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

  • French Hospital Medical Center Hospital · San Luis Obispo, CA
  • Marian Regional Medical Center Hospital · Santa Maria, CA

Colleagues at Kristopher Lyon, MD and Rachel May, MD, a Medical Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4 clinicians in the practice; 2 are shown here.

Other providers in Arroyo Grande