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

Mr. Howard Marx, MD

Individual provider Internal Medicine Physician · NPI 1356307136

Mr. Howard Marx, MD is an Internal Medicine Physician in Pasadena, California. Works from 3 locations. Licensed in California.

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

2090 Woodlyn Ave
Pasadena, CA 91104
Phone: (626) 398-7642
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1500 E Duarte Rd, Duarte, CA 91010 — (626) 359-8111
  • 1500 E Duarte Rd, Duarte, CA 91010 — (626) 359-8111

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G48962 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence G48962 (CA)

Record details

NPI number1356307136
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 21, 2006
Last updated in NPPESJuly 23, 2018

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