Robert Eugene Chalmers, DO
Family Medicine Physician · Oak Ridge, TN
Robert Eugene Chalmers, DO is a family medicine physician with a practice address in Oak Ridge, Tennessee, and NPI 1760911879, issued on Jun 12, 2017. Check the license (Tennessee 3656, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Robert Eugene Chalmers
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 3656 TN
Self-reported in NPPES; status is on the state search - Practice location
- 801 Oak Ridge Tpke, Oak Ridge, TN 37830
- Phone
- (865) 483-3172
- Enumerated
- Jun 12, 2017
- Record last updated
- Jul 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200625000527); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,674 in Tennessee → Look up another NPI →
Also registered at 801 Oak Ridge Tpke
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Melissa Brooker, FNPFamily Nurse Practitioner1720711013
- Robert Casey, MDFamily Medicine Physician1588691018
- Tara Casey, APRNFamily Nurse Practitioner1558998658
- Corrinne Curry, APRNNurse Practitioner1083158414
- Sonali Deo, MDFamily Medicine Physician1215121611
Verify Robert Eugene Chalmers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 3656Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% more Medicare Part D claims than the average family medicine physician in 2024
5,111 Medicare Part D claims for 272 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 162 claims were for opioids.
Most prescribed
- Atorvastatin Calcium269 claims
- Gabapentin152 claims
- Levothyroxine Sodium148 claims
- Amlodipine Besylate138 claims
- Losartan Potassium134 claims
- Ozempic131 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: $469.54
28 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Summit Medical Group, PLLCOak Ridge, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Eugene Chalmers among 2,674 family medicine physician records in Tennessee
Robert Eugene Chalmers, DO is one of 2,674 family medicine physician records with a practice address in Tennessee. 81% 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 81% of them.
- NPI issued2017 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2017 · median 2004 among the 1,685 with a school on file
- Record last updated2020 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 family medicine physician records list a practice address in Oak Ridge
They are 38 of the 904 NPPES records with a practice address in Oak Ridge, and 2,674 family medicine physician records in Tennessee.
All 2,674 in Tennessee → Every provider in Oak Ridge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Elizabeth Azel, MDOak Ridge, TN 378301396794392
- William Bell, M.D.Oak Ridge, TN 378301659353647
- Pamela Bridgeman, MDOak Ridge, TN 378301174559652
- David Compton, M.D.Oak Ridge, TN 378301184606261
- Shere Conway, M.D.Oak Ridge, TN 378301619959798
- David Heald, M.D.Oak Ridge, TN 378301578545372
- Daniel Lenoir, M.D.Oak Ridge, TN 378301861474967
- Terrence Meece, M.D.Oak Ridge, TN 378301477542033
Common questions
What is Robert Eugene Chalmers, DO's NPI number?
Robert Eugene Chalmers, DO's National Provider Identifier (NPI) is 1760911879, issued on Jun 12, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Robert Eugene Chalmers, DO located?
The NPPES record lists a practice address at 801 Oak Ridge Tpke, Oak Ridge, TN, 37830. Phone: (865) 483-3172. Providers update this record themselves, so call before visiting.
How can I verify Robert Eugene Chalmers, DO's license?
NPPES lists Tennessee license number 3656, 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 Eugene Chalmers, DO prescribe under Medicare Part D?
In 2024, Robert Eugene Chalmers, DO had 5,111 Medicare Part D claims for 272 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.