Karen M. Box, MD
Endocrinology, Diabetes & Metabolism Physician · Prescott, AZ
Karen M. Box, MD is an endocrinology, diabetes & metabolism physician with a practice address in Prescott, Arizona, and NPI 1386693992, issued on May 9, 2006. Check the license (Arizona 19996, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen M. Box
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 19996 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1050 Gail Gardner Way Ste 300, Prescott, AZ 86305
- Phone
- (928) 717-5240
- Enumerated
- May 9, 2006
- Record last updated
- Feb 3, 2025
- Fax
- (928) 717-5238
- Medicaid ID
- 822967 AZ
- Medicare enrollment
- Enrolled (PECOS I20060310000200); may accept Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 175 in Arizona → Look up another NPI →
Also registered at 1050 Gail Gardner Way Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jean Colella, ANPAdult Health Nurse Practitioner1902803208
- Amy Kallio, PAPhysician Assistant1235225954
- Michael Lacaze, DOFamily Medicine Physician1003161035
- Michelangelo Reyes, MDEndocrinology, Diabetes & Metabolism Physician1437721537
- Nancy Rosales, APRN, MSN, FNPFamily Nurse Practitioner1013195171
- Heather Sayer, FNPFamily Nurse Practitioner1427753300
Verify Karen M. Box in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 19996Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
75 Medicare Part D claims for 36 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D.
Most prescribed
- Alendronate Sodium29 claims
- Levothyroxine Sodium14 claims
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.
Karen M. Box among 175 endocrinology, diabetes & metabolism physician records in Arizona
Karen M. Box, MD is one of 175 endocrinology, diabetes & metabolism physician records with a practice address in Arizona. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 61% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1985 · median 2005 among the 107 with a school on file
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Arizona
There are 175 endocrinology, diabetes & metabolism physician records in Arizona.
All 175 in Arizona → Every provider in Prescott → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Michelangelo Reyes, MDPrescott, AZ 863051437721537
- Uwe Folhmeister, M.D.Prescott, AZ 863131871606715
- Sami Nasrallah, MDCottonwood, AZ 863261255528600
- Sandra Rubio, MDCottonwood, AZ 863261225131014
- Karen Jong, MDTuba City, AZ 860451093256208
- Michael Mortensen, DOFlagstaff, AZ 860011679709273
- Dorota Pucyk, M.D.Tucson, AZ 857421235275785
- David AlsterTucson, AZ 857411164457339
Common questions
What is Karen M. Box, MD's NPI number?
Karen M. Box, MD's National Provider Identifier (NPI) is 1386693992, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen M. Box, MD located?
The NPPES record lists a practice address at 1050 Gail Gardner Way Ste 300, Prescott, AZ, 86305. Phone: (928) 717-5240. Providers update this record themselves, so call before visiting.
How can I verify Karen M. Box, MD's license?
NPPES lists Arizona license number 19996, 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 M. Box, MD prescribe under Medicare Part D?
In 2024, Karen M. Box, MD had 75 Medicare Part D claims for 36 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.