Dr. Robert Loy Whittaker, MD
- Medicare services, 2024
- 23,494
- Medicare patients, 2024
- 3,012
- Part D claims, 2017
- 51
- MIPS score, 2024
- 100
- Hospital affiliations
- 5
- Practice address
- 1710 Gunbarrel Road, Chattanooga, TN 37421
- Practice phone
- Call (423) 553-1234
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chattanooga Imaging East
Mammography / Breast Imaging Center · Chattanooga, Tennessee
Find Dr. Whittaker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert Loy Whittaker is a diagnostic radiologist in Chattanooga, Tennessee
Dr. Whittaker practices at Chattanooga Imaging East in Chattanooga, Tennessee.
Dr. Whittaker's NPI, 1366686875, was assigned on April 28, 2009. Dr. Whittaker graduated from University of Tennessee, Hsc, College of Medicine in 2009. Dr. Whittaker holds Tennessee license 47837.
- NPI
- 1366686875NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123308772
- NPI enumeration date
- April 28, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 553-1234
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Loy Whittaker practices at Chattanooga Imaging East in Chattanooga, Tennessee
Dr. Whittaker's primary practice is Chattanooga Imaging East, at 1710 Gunbarrel Road, Chattanooga, TN 37421. The practice phone is (423) 553-1234.
- Chattanooga Imaging East1710 Gunbarrel Road, Chattanooga, TN 37421Phone(423) 553-1234
Source: Dmand AI Affiliation Data
Dr. Robert Loy Whittaker is affiliated with 11 sites of care and 5 medical groups
Dr. Whittaker's primary practice is Chattanooga Imaging East in Chattanooga, Tennessee. Dr. Whittaker is also affiliated with CommonSpirit - Memorial Hospital - Chattanooga. The medical group on file is Chattanooga Imaging. Dmand AI also links Dr. Whittaker to 4 more hospitals, 5 group practices and clinics and 4 medical groups, each named with a free account. Dr. Whittaker's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Loy Whittaker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Whittaker practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chattanooga Imaging East | Available with a free account |
| +10 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Loy Whittaker is one of 691 diagnostic radiologists in Tennessee
Diagnostic radiology is Dr. Whittaker's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Whittaker is licensed in Tennessee.
Specialties and state licenses
- Diagnostic radiology, TennesseePrimary
Diagnostic radiologists near Dr. Whittaker
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert Loy Whittaker billed Medicare for 23,494 services in 2024
CMS data shows 23,494 Medicare services from Dr. Whittaker across 62 procedure codes in 2024, for 3,012 Medicare patients. Medicare paid $180,180 for them.
Dr. Whittaker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 15,4092024: 19,73828%
- Imaging
- 2023: 3,5862024: 3,569No change
- Tests and treatments
- 2023: 1652024: 1556%
- Lab and pathology
- 2023: 212024: 1910%
- Surgery
- 2023: 542024: 1376%
Where Dr. Whittaker's Medicare services took place, 2024
- In an office21,13390%
- In a facility2,36110%
Dr. Whittaker compared with the Tennessee median for diagnostic radiologists, 2024
- Dr. Whittaker
- Tennessee median
- Medicare services
- 23,494vs 2,8698.2 times
- Medicare patients
- 3,012vs 1,77270% above
- Part D claims
- 51vs 163.2 times
Medians across 703 diagnostic radiologists in Tennessee with Dmand AI profiles that report each measure.
Dr. Whittaker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Whittaker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Whittaker and other diagnostic radiologists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Loy Whittaker treated 3,012 Medicare patients in 2024, average age 74
CMS counts 3,012 Medicare patients who saw Dr. Whittaker in 2024. The largest group is 65 to 74, with 1,318 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Whittaker's median patient age at 66, with 63% women.
Dr. Whittaker's Medicare patients by age, 2024
Dr. Whittaker's Medicare patients by sex, 2024
- Women1,98366%
- Men1,02934%
Chronic conditions among Dr. Whittaker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes37%
- Ischemic heart disease36%
- Chronic kidney disease32%
- Anxiety31%
- Mood disorders29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Whittaker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Loy Whittaker wrote 51 Medicare Part D claims in 2017
In 2017, Dr. Whittaker wrote 51 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $316 in total drug cost. In 2016, CMS named 40 claims across 3 drugs.
Dr. Whittaker's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 402017: 5128%
Drugs named by CMS: 3 in 2017, 3 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Robert Loy Whittaker scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Whittaker for performance year 2024, reported as part of a group. Dr. Whittaker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Whittaker's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Robert Loy Whittaker received $529 in industry payments from 2016 to 2025
CMS Open Payments shows 14 general payments to Dr. Whittaker from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $208.
General payments to Dr. Whittaker by program year, 2016 to 2025
Companies that paid Dr. Whittaker the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Loy Whittaker graduated from University of Tennessee, Hsc, College of Medicine
Dr. Whittaker graduated from University of Tennessee, Hsc, College of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert Loy Whittaker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert Loy Whittaker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Robert Loy Whittaker's NPI number?
Dr. Robert Loy Whittaker's NPI number is 1366686875. It was assigned on April 28, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Loy Whittaker?
Dr. Robert Loy Whittaker is a diagnostic radiologist in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Robert Loy Whittaker practice?
Dr. Whittaker practices at 1710 Gunbarrel Road, Chattanooga, TN 37421. Dr. Whittaker's primary practice is Chattanooga Imaging East in Chattanooga, Tennessee. Dmand AI also links Dr. Whittaker to 4 hospitals, 5 group practices and clinics and 4 medical groups.
What is Dr. Robert Loy Whittaker's office phone number?
The practice phone on file for Dr. Whittaker is (423) 553-1234.
What is Dr. Robert Loy Whittaker's medical license number?
Dr. Whittaker holds Tennessee license 47837.
Which hospitals is Dr. Robert Loy Whittaker affiliated with?
Dr. Whittaker is affiliated with CommonSpirit - Memorial Hospital - Chattanooga. Dmand AI links Dr. Whittaker to 4 more hospitals.
What medical group is Dr. Robert Loy Whittaker part of?
Dr. Whittaker is linked to Chattanooga Imaging. Dmand AI links Dr. Whittaker to 4 more medical groups.
Does Dr. Robert Loy Whittaker accept Medicare?
Yes. CMS data shows Dr. Whittaker billed Medicare for 23,494 services in 2024, and Dr. Whittaker accepts Medicare assignment.
What is Dr. Robert Loy Whittaker's MIPS score?
Dr. Whittaker's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Robert Loy Whittaker see?
CMS counts 3,012 Medicare patients who saw Dr. Whittaker in 2024, with an average age of 74.
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What services does Dr. Robert Loy Whittaker bill to Medicare?
In 2024, Dr. Whittaker's most billed Medicare services were medicare temporary code (Q9967), medicare temporary code (Q9966) and medical supplies or transport (A9577).
Where did Dr. Robert Loy Whittaker go to medical school?
Dr. Whittaker graduated from University of Tennessee, Hsc, College of Medicine in 2009.
What drugs does Dr. Robert Loy Whittaker prescribe most?
In 2017 Medicare Part D data, Dr. Whittaker's most prescribed drugs by claims were Oxycodone HCl, Ciprofloxacin HCl and Ondansetron HCl.
Has Dr. Robert Loy Whittaker received payments from drug or device companies?
CMS Open Payments shows $529 in general payments to Dr. Whittaker from 7 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Robert Loy Whittaker been practicing?
Dr. Whittaker graduated from medical school in 2009, 17 years ago.
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