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

Mark D Mosson, MD

Individual provider Internal Medicine Physician · NPI 1174765549

Mark D Mosson, MD is an Internal Medicine in San Diego, California. Qualified in 2009, 17 years ago. Practices with Hillcrest Internal Medicine a Medical Corporation, a 5-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
17
Licensed in
CA
In the registry since
2009
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

4060 Fourth Ave Ste 505
San Diego, CA 92103-2121
Phone: (619) 298-1318
Fax: (619) 298-0843
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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 A114134 (CA)

Record details

NPI number1174765549
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2009
Last updated in NPPESJune 25, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Hillcrest Internal Medicine A Medical Corporation — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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