Obesity (Silver Spring)
3T3 CellsAdipogenesisAdiponectin
Dr. William Clark Stewart Jr., MD
NPI1124028949PAC ID9830108612
- Medicare services, 2024
- 926
- Medicare patients, 2024
- 121
- Part D claims, 2024
- 2,781
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- 6465 N Quail Hollow Rd, Memphis, TN 38120
- Practice phone
- Call (901) 275-8280
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
William C. Stewart, Jr, M.D.
Memphis, Tennessee
Find Dr. Stewart's professional email, personal email and mobile number
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Dr. William Clark Stewart Jr. is an internist in Memphis, Tennessee
Dr. Stewart practices at William C. Stewart, Jr, M.D. in Memphis, Tennessee.
Dr. Stewart's NPI, 1124028949, was assigned on July 22, 2005. Dr. Stewart graduated from University of Tennessee, Hsc, College of Medicine in 1988. Dr. Stewart holds Tennessee license MD019833.
NPI and contact details
- NPI
- 1124028949NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830108612
- NPI enumeration date
- July 22, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (901) 275-8280
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Clark Stewart Jr. practices at William C. Stewart, Jr, M.D. in Memphis, Tennessee
Dr. Stewart's primary practice is William C. Stewart, Jr, M.D., at 6465 N Quail Hollow Rd, Memphis, TN 38120 in Shelby County. The practice phone is (901) 275-8280.
- William C. Stewart, Jr, M.D.6465 N Quail Hollow Rd, Memphis, TN 38120 · Shelby CountyPhone(901) 275-8280
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William Clark Stewart Jr. is affiliated with 4 sites of care
Dr. Stewart's primary practice is William C. Stewart, Jr, M.D. in Memphis, Tennessee. Dr. Stewart is also affiliated with Methodist University Hospital. Dmand AI also links Dr. Stewart to 1 more hospital and 1 physician office, each named with a free account.
William C. Stewart, Jr, M.D.Primary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Clark Stewart Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stewart practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William C. Stewart, Jr, M.D. | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Clark Stewart Jr. is one of 2,427 internists in Tennessee
Internal medicine is Dr. Stewart's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Stewart is licensed in Tennessee.
Specialties and state licenses
- Internal medicine, TennesseePrimary
Internists near Dr. Stewart
Counts of internists 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. William Clark Stewart Jr. billed Medicare for 926 services in 2024
CMS data shows 926 Medicare services from Dr. Stewart across 8 procedure codes in 2024, for 121 Medicare patients. Medicare paid $36,800 for them. Every service was in an office.
Medicare services, 2024926
Medicare patients121
Paid by Medicare$36,800
Procedure codes8
Dr. Stewart's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3622024: 31613%
- Surgery
- 2023: 3042024: 27011%
- Tests and treatments
- 2023: 1742024: 1627%
- Lab and pathology
- 2023: 1102024: 1176%
- Other services
- 2023: 642024: 615%
Dr. Stewart compared with the Tennessee median for internists, 2024
- Dr. Stewart
- Tennessee median
- Medicare services
- 926vs 67138% above
- Medicare patients
- 121vs 22245% below
- Part D claims
- 2,269vs 3346.8 times
Medians across 2,462 internists in Tennessee with Dmand AI profiles that report each measure.
Dr. Stewart'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. Stewart?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stewart and other internists in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Clark Stewart Jr. treated 121 Medicare patients in 2024, average age 78
CMS counts 121 Medicare patients who saw Dr. Stewart in 2024. The largest group is 75 to 84, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stewart's median patient age at 72, with 51% women.
Medicare patients, 2024121
Average age78
Average risk score0.89
Dr. Stewart's Medicare patients by age, 2024
Dr. Stewart's Medicare patients by sex, 2024
- Women6755%
- Men5445%
Chronic conditions among Dr. Stewart's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Osteoporosis51%
- Arthritis45%
- Ischemic heart disease25%
- Atrial fibrillation19%
- Diabetes19%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stewart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Clark Stewart Jr. wrote 2,781 Medicare Part D claims in 2024
In 2024, Dr. Stewart wrote 2,781 Medicare Part D claims for 155 patients. 89% of them were for generic drugs. CMS names the drug for 2,269 of them, across 62 drugs with 11 or more claims each, at $201,067 in total drug cost. In 2023, CMS named 2,439 claims across 65 drugs.
Part D claims, 20242,781
Drugs named by CMS62
Total drug cost$201,067
Part D patients155
Dr. Stewart's Part D claims by kind of drug, 2024
- Generic2,474 claims89%
- Brand-name and other307 claims11%
Dr. Stewart's 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. Stewart's Part D claims, 2024
- Opioids2%63 of 2,781 claims
- Antibiotics4%100 of 2,781 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: 2,4392024: 2,2697%
Drugs named by CMS: 62 in 2024, 65 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. William Clark Stewart Jr. takes part in Medicare
Dr. Stewart 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. William Clark Stewart Jr. has 3 publications on record
Dmand AI links 3 papers to Dr. Stewart, published from 2010 to 2011. Dr. Stewart has published most often in Obesity (Silver Spring).
Papers3
Years published2010 to 2011
Recent publications by Dr. Stewart
Obesity (Silver Spring)
3T3-L1 CellsAdipocytesCytokine Receptor gp130
LasersLightNeuroblastoma
See who Dr. Stewart researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stewart works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Clark Stewart Jr. received $479 in industry payments from 2016 to 2025
CMS Open Payments shows 29 general payments to Dr. Stewart from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $87.
General payments to Dr. Stewart by program year, 2016 to 2025
Companies that paid Dr. Stewart 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. William Clark Stewart Jr. graduated from University of Tennessee, Hsc, College of Medicine
Dr. Stewart graduated from University of Tennessee, Hsc, College of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Clark Stewart Jr.'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. William Clark Stewart Jr.
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. William Clark Stewart Jr.'s NPI number?
Dr. William Clark Stewart Jr.'s NPI number is 1124028949. It was assigned on July 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William Clark Stewart Jr.?
Dr. William Clark Stewart Jr. is an internist in Memphis, Tennessee. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. William Clark Stewart Jr. practice?
Dr. Stewart practices at 6465 N Quail Hollow Rd, Memphis, TN 38120. Dr. Stewart's primary practice is William C. Stewart, Jr, M.D. in Memphis, Tennessee. Dmand AI also links Dr. Stewart to 1 hospital and 1 physician office.
What is Dr. William Clark Stewart Jr.'s office phone number?
The practice phone on file for Dr. Stewart is (901) 275-8280.
What is Dr. William Clark Stewart Jr.'s medical license number?
Dr. Stewart holds Tennessee license MD019833.
Which hospitals is Dr. William Clark Stewart Jr. affiliated with?
Dr. Stewart is affiliated with Methodist University Hospital. Dmand AI links Dr. Stewart to 1 more hospital.
Does Dr. William Clark Stewart Jr. accept Medicare?
Yes. CMS data shows Dr. Stewart billed Medicare for 926 services in 2024, and Dr. Stewart accepts Medicare assignment.
How many Medicare patients does Dr. William Clark Stewart Jr. see?
CMS counts 121 Medicare patients who saw Dr. Stewart in 2024, with an average age of 78.
What services does Dr. William Clark Stewart Jr. bill to Medicare?
In 2024, Dr. Stewart's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and lab and pathology test (81002).
Where did Dr. William Clark Stewart Jr. go to medical school?
Dr. Stewart graduated from University of Tennessee, Hsc, College of Medicine in 1988.
Show 4 more questionsShow fewer questions
What drugs does Dr. William Clark Stewart Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Stewart's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
Has Dr. William Clark Stewart Jr. received payments from drug or device companies?
CMS Open Payments shows $479 in general payments to Dr. Stewart from 10 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. William Clark Stewart Jr. been practicing?
Dr. Stewart graduated from medical school in 1988, 38 years ago.
Does Dr. William Clark Stewart Jr. do research?
Dmand AI links 3 publications to Dr. Stewart, published from 2010 to 2011.
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