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

Dr. Karen Louise Herbst, PHD, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1114977840

Dr. Karen Louise Herbst, PHD, MD is an Endocrinology, Diabetes & Metabolism Physician in Tucson, Arizona. Licensed in Arizona and California. Registered with an NPI since 2006.

Licensed in
AZ, CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6365 E Tanque Verde Rd Ste 200
Tucson, AZ 85715-3830
Phone: (520) 719-1610
Fax: (520) 720-3904
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence A80165 (CA)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 47835 (AZ)

Record details

NPI number1114977840
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESAugust 25, 2025
Certification dateAugust 25, 2025

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Consulting Fee $36,000 12 payments
Travel and Lodging $422 1 payment · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $42 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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