Karen Louise Herbst, PH.D., M.D.
Endocrinology, Diabetes & Metabolism Physician · Tucson, AZ
Karen Louise Herbst, PH.D., M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Tucson, Arizona, and NPI 1114977840, issued on May 11, 2006. Check the license (Arizona 47835, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen Louise Herbst
- Credential
- PH.D., M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License numbers
- 47835 AZ
A80165 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6365 E Tanque Verde RD Ste 200, Tucson, AZ 85715
- Phone
- (520) 719-1610
- Enumerated
- May 11, 2006
- Record last updated
- Aug 25, 2025
- Fax
- (520) 720-3904
- Entity
- Type 1 · individual
Verify Karen Louise Herbst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 47835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
22 Medicare Part D claims for 11 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $36,106.89
14 payments; by number, the most common kind was consulting fee; the largest payer was CashFlow Solutions, LLC. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Endocrinology, Diabetes & Metabolism Physician providers in Arizona
There are 175 endocrinology, diabetes & metabolism physician records in Arizona.
Other endocrinology, diabetes & metabolism physician records in Arizona
- Rtika Abraham, MDPhoenix, AZ1689803173
- Dima Abu Afifeh, MDTucson, AZ1144924325
- Rashi Agarwal, M.D.Peoria, AZ1336394956
- Seema Ahluwalia, M.D.Chandler, AZ1447231147
- Adnan Ajmal, MDPhoenix, AZ1245494046
- Yasmin Akhunji, M.D.Phoenix, AZ1790918738
- Osamah Al Ali, MDScottsdale, AZ1407485337
- Ahmad Al Maradni, MDPhoenix, AZ1588194112
- Abdul-Razzak Alamir, MDScottsdale, AZ1841263662
- Karissa Aldrete, MDPhoenix, AZ1134682594
Common questions
What is Karen Louise Herbst, PH.D., M.D.'s NPI number?
Karen Louise Herbst, PH.D., M.D.'s National Provider Identifier (NPI) is 1114977840, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Louise Herbst, PH.D., M.D. located?
The NPPES record lists a practice address at 6365 E Tanque Verde RD Ste 200, Tucson, AZ, 85715. Phone: (520) 719-1610. Providers update this record themselves, so call before visiting.
How can I verify Karen Louise Herbst, PH.D., M.D.'s license?
NPPES lists Arizona license number 47835, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karen Louise Herbst, PH.D., M.D. prescribe under Medicare Part D?
In 2024, Karen Louise Herbst, PH.D., M.D. had 22 Medicare Part D claims for 11 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.