Robert Randal Geier
Endocrinology, Diabetes & Metabolism Physician · Knoxville, TN
Robert Randal Geier is an endocrinology, diabetes & metabolism physician with a practice address in Knoxville, Tennessee, and NPI 1336673102, issued on Apr 18, 2017. Check the license (Tennessee 4716, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert Randal Geier
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 4716 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1450 Dowell Springs Blvd Ste 300, Knoxville, TN 37909
- Phone
- (656) 378-8128
- Enumerated
- Apr 18, 2017
- Record last updated
- Aug 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20220825000005); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 148 in Tennessee → Look up another NPI →
Also registered at 1450 Dowell Springs Blvd Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Irizarry, MDEndocrinology, Diabetes & Metabolism Physician1518282839
- Kaitlyn Landis, PA-CPhysician Assistant1396412391
- Linda Meyers, MDEndocrinology, Diabetes & Metabolism Physician1831397793
- Tracy Moseman, FNPFamily Nurse Practitioner1639652498
- Selena Reed, R.D., L.D.N.,CDEMetabolic Nutrition Registered Dietitian1437278769
Verify Robert Randal Geier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 4716Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,689 Medicare Part D claims for 261 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Levothyroxine Sodium662 claims
- Ozempic60 claims
- Methimazole52 claims
- Atorvastatin Calcium48 claims
- Hydrocortisone48 claims
- Rosuvastatin Calcium48 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.
Industry payments in 2024: $1,108.07
59 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. 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.
Bills Medicare through one group practice
- Endocrinology Consultants OF East TNKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Randal Geier among 148 endocrinology, diabetes & metabolism physician records in Tennessee
Robert Randal Geier is one of 148 endocrinology, diabetes & metabolism physician records with a practice address in Tennessee. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 86% of them.
- NPI issued2017 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2022 · median 2003 among the 108 with a school on file
- Record last updated2024 · 42% 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 Tennessee 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 Tennessee
There are 148 endocrinology, diabetes & metabolism physician records in Tennessee.
All 148 in Tennessee → Every provider in Knoxville → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Peter Campbell, MDKnoxville, TN 379091386640647
- Thomas Doty, MDKnoxville, TN 379091730184540
- David Irizarry, MDKnoxville, TN 379091518282839
- Bill Law, MDKnoxville, TN 379091720084825
- Daniel McCammon, MDKnoxville, TN 379091073518890
- Linda Meyers, MDKnoxville, TN 379091831397793
- Gregory Moffitt, MDKnoxville, TN 379091962403675
- Casey Page, MDKnoxville, TN 379091215933577
Common questions
What is Robert Randal Geier's NPI number?
Robert Randal Geier's National Provider Identifier (NPI) is 1336673102, issued on Apr 18, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Robert Randal Geier located?
The NPPES record lists a practice address at 1450 Dowell Springs Blvd Ste 300, Knoxville, TN, 37909. Phone: (656) 378-8128. Providers update this record themselves, so call before visiting.
How can I verify Robert Randal Geier's license?
NPPES lists Tennessee license number 4716, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Randal Geier prescribe under Medicare Part D?
In 2024, Robert Randal Geier had 1,689 Medicare Part D claims for 261 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.