Dr. Robert L. Quarles, DO
- Medicare services, 2024
- 1,004
- Medicare patients, 2024
- 238
- Part D claims, 2024
- 1,708
- Hospital affiliations
- 6
- Industry payments
- $1,059
- Practice address
- 2621 Promenade Pkwy Ste 101, Midlothian, VA 23113-4905
- Practice phone
- Call (804) 897-3746
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Threshold Medical
Physician office · Midlothian, Virginia
Find Dr. Quarles' 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 L. Quarles is a general practice physician in Midlothian, Virginia
Dr. Quarles practices at Threshold Medical in Midlothian, Virginia.
Dr. Quarles' NPI, 1457386237, was assigned on July 11, 2006. Dr. Quarles graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1993. Dr. Quarles holds Virginia license 0102050025.
- NPI
- 1457386237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567648215
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (804) 897-3746
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert L. Quarles practices at Threshold Medical in Midlothian, Virginia
Dr. Quarles' primary practice is Threshold Medical, at 2621 Promenade Pkwy Ste 101, Midlothian, VA 23113-4905. The practice phone is (804) 897-3746.
- Threshold Medical2621 Promenade Pkwy Ste 101, Midlothian, VA 23113-4905Phone(804) 897-3746
Source: Dmand AI Affiliation Data
Dr. Robert L. Quarles is affiliated with 8 sites of care
Dr. Quarles' primary practice is Threshold Medical in Midlothian, Virginia. Dr. Quarles is also affiliated with Bon Secours St. Francis Medical Center. Dmand AI also links Dr. Quarles to 5 more hospitals and 1 home health agency, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert L. Quarles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quarles practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Threshold Medical | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert L. Quarles is one of 264 general practice physicians in Virginia
General practice is Dr. Quarles' primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Quarles is licensed in Virginia.
Specialties and state licenses
- General practice, VirginiaPrimary
General practice physicians near Dr. Quarles
Counts of general practice physicians 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 L. Quarles billed Medicare for 1,004 services in 2024
CMS data shows 1,004 Medicare services from Dr. Quarles across 5 procedure codes in 2024, for 238 Medicare patients. Medicare paid $77,633 for them. Every service was in an office.
Dr. Quarles' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7232024: 97435%
- Surgery
- 2023: 02024: 18
- Other services
- 2023: 02024: 12
Dr. Quarles compared with the Virginia median for general practice physicians, 2024
- Dr. Quarles
- Virginia median
- Medicare services
- 1,004vs 1705.9 times
- Medicare patients
- 238vs 773.1 times
- Part D claims
- 1,174vs 10711.0 times
Medians across 125 general practice physicians in Virginia with Dmand AI profiles that report each measure.
Dr. Quarles' 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Quarles and other general practice physicians in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert L. Quarles treated 238 Medicare patients in 2024, average age 75
CMS counts 238 Medicare patients who saw Dr. Quarles in 2024. The largest group is 65 to 74, with 122 patients. 75% of them have high cholesterol, and 68% have high blood pressure. Their average risk score is 0.86, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Quarles' median patient age at 62, with 48% women.
Dr. Quarles' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Quarles' Medicare patients by sex, 2024
- Women12452%
- Men11448%
Chronic conditions among Dr. Quarles' Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis42%
- Ischemic heart disease31%
- Diabetes20%
- Anxiety19%
- Cancer16%
- Atrial fibrillation15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Quarles' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women48%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert L. Quarles wrote 1,708 Medicare Part D claims in 2024
In 2024, Dr. Quarles wrote 1,708 Medicare Part D claims for 192 patients. 85% of them were for generic drugs. CMS names the drug for 1,174 of them, across 40 drugs with 11 or more claims each, at $46,300 in total drug cost. In 2023, CMS named 923 claims across 32 drugs.
Dr. Quarles' Part D claims by kind of drug, 2024
- Generic1,452 claims85%
- Brand-name152 claims9%
- Other104 claims6%
Dr. Quarles' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Quarles' Part D claims, 2024
- Antibiotics7%113 of 1,708 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9232024: 1,17427%
Drugs named by CMS: 40 in 2024, 32 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Robert L. Quarles takes part in Medicare
Dr. Quarles accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert L. Quarles received $1,059 in industry payments from 2016 to 2025
CMS Open Payments shows 59 general payments to Dr. Quarles from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Pfizer Inc. paid the most, $259.
General payments to Dr. Quarles by program year, 2016 to 2025
General payments to Dr. Quarles by kind, 2016 to 2025
- Food and beverage$1,04699%
- Education$141%
Companies that paid Dr. Quarles 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 L. Quarles graduated from Kansas City University of Med & Biosciences, College of Osteo Med
Dr. Quarles graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert L. Quarles'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 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)Medicare Part D Prescribers - by Provider (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) |
| 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 L. Quarles
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 L. Quarles' NPI number?
Dr. Robert L. Quarles' NPI number is 1457386237. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert L. Quarles?
Dr. Robert L. Quarles is a general practice physician in Midlothian, Virginia. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Robert L. Quarles practice?
Dr. Quarles practices at 2621 Promenade Pkwy Ste 101, Midlothian, VA 23113-4905. Dr. Quarles' primary practice is Threshold Medical in Midlothian, Virginia. Dmand AI also links Dr. Quarles to 5 hospitals and 1 home health agency.
What is Dr. Robert L. Quarles' office phone number?
The practice phone on file for Dr. Quarles is (804) 897-3746.
What is Dr. Robert L. Quarles' medical license number?
Dr. Quarles holds Virginia license 0102050025.
Which hospitals is Dr. Robert L. Quarles affiliated with?
Dr. Quarles is affiliated with Bon Secours St. Francis Medical Center. Dmand AI links Dr. Quarles to 5 more hospitals.
Does Dr. Robert L. Quarles accept Medicare?
Yes. CMS data shows Dr. Quarles billed Medicare for 1,004 services in 2024, and Dr. Quarles accepts Medicare assignment.
How many Medicare patients does Dr. Robert L. Quarles see?
CMS counts 238 Medicare patients who saw Dr. Quarles in 2024, with an average age of 75.
What services does Dr. Robert L. Quarles bill to Medicare?
In 2024, Dr. Quarles' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99211) and office visit, new patient (99205).
Where did Dr. Robert L. Quarles go to medical school?
Dr. Quarles graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1993.
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What drugs does Dr. Robert L. Quarles prescribe most?
In 2024 Medicare Part D data, Dr. Quarles' most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Robert L. Quarles received payments from drug or device companies?
CMS Open Payments shows $1,059 in general payments to Dr. Quarles from 21 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Robert L. Quarles been practicing?
Dr. Quarles graduated from medical school in 1993, 33 years ago.
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