Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Howard S Lyon, MD

Individual provider Internal Medicine Physician · NPI 1164459764

Dr. Howard S Lyon, MD practises Internal Medicine in San Diego, California. Graduated from New York Medical College in 1989, 37 years ago. Practices with Scripps Health, a 1,446-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
37
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

4077 Fifth Ave MER127
San Diego, CA 92103-2105 Not confirmed with CMS for 19 years — call before visiting
Phone: (619) 994-6558
Fax: (619) 686-3874
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G70629 (CA)

Record details

NPI number1164459764
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1989 (37 years in practice)
Group practice Scripps Health — 1446 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 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 patients101
Services billed 250 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

  • Scripps Mercy Hospital Hospital · San Diego, CA

Colleagues at Scripps Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1446 clinicians in the practice; 12 are shown here.

Other providers in San Diego