Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Simon M Ritchken, MD

Individual provider Internal Medicine Physician · NPI 1255399341

Dr. Simon M Ritchken, MD is a Gastroenterology in San Diego, California. Qualified in 1973, 53 years ago. Practices with Ritchken and First Medical Group, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
53
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

4282 Genesee Ave Ste 103
San Diego, CA 92117-4961
Phone: (858) 292-0108
Fax: (858) 292-9097
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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 A34151 (CA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence A34151 (CA)

Record details

NPI number1255399341
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2006
Last updated in NPPESJune 29, 2010

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1973 (53 years in practice)
Group practice Ritchken And First Medical Group — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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