Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Henry Markley Gass IV, MD

Individual provider Orthopaedic Surgery Physician · NPI 1346637949

Dr. Henry Markley Gass IV, MD is an Orthopaedic Surgery Physician in Tustin, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2015
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

14642 Newport Ave Ste 105
Tustin, CA 92780-6058
Phone: (949) 688-0958
Fax: (949) 688-0960
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence A201942 (CA)

Record details

NPI number1346637949
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 21, 2015
Last updated in NPPESAugust 6, 2026
Certification dateAugust 6, 2026

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