Dr. John Gray Wallace, MD
- Medicare services, 2024
- 23,448
- Medicare patients, 2024
- 612
- Part D claims, 2024
- 18,375
- Hospital affiliations
- 2
- Industry payments
- $11,268
- Practice address
- 332 Hwy 12 W, Kosciusko, MS 39090-3209
- Practice phone
- Call (662) 289-1800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kosciusko Medical Clinic
Primary care practice · Kosciusko, Mississippi
Find Dr. Wallace'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. John Gray Wallace is a family medicine physician in Kosciusko, Mississippi
Dr. Wallace practices at Kosciusko Medical Clinic in Kosciusko, Mississippi.
Dr. Wallace's NPI, 1831486596, was assigned on July 1, 2011. Dr. Wallace graduated from University of Mississippi School of Medicine in 2011. Dr. Wallace holds Mississippi license 22522.
- NPI
- 1831486596NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072756808
- NPI enumeration date
- July 1, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (662) 289-1800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Gray Wallace practices at Kosciusko Medical Clinic in Kosciusko, Mississippi
Dr. Wallace's primary practice is Kosciusko Medical Clinic, at 332 Hwy 12 W, Kosciusko, MS 39090-3209. The practice phone is (662) 289-1800.
- Kosciusko Medical Clinic332 Hwy 12 W, Kosciusko, MS 39090-3209Phone(662) 289-1800
Source: Dmand AI Affiliation Data
Dr. John Gray Wallace is affiliated with 9 sites of care and 2 medical groups
Dr. Wallace's primary practice is Kosciusko Medical Clinic in Kosciusko, Mississippi. Dr. Wallace is also affiliated with Baptist Memorial Hospital-Attala. The medical group on file is Kosciusko Medical Clinic. Dmand AI also links Dr. Wallace to 1 more hospital, 3 home health agencies, 1 group practice or clinic, 1 hospice, 1 skilled nursing facility and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Gray Wallace's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wallace practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kosciusko Medical Clinic | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Gray Wallace is one of 954 family medicine physicians in Mississippi
Family medicine is Dr. Wallace's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Wallace is licensed in Mississippi.
Specialties and state licenses
- Family medicine, MississippiPrimary
Family medicine physicians near Dr. Wallace
Counts of family medicine 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. John Gray Wallace billed Medicare for 23,448 services in 2024
CMS data shows 23,448 Medicare services from Dr. Wallace across 71 procedure codes in 2024, for 612 Medicare patients. Medicare paid $353,472 for them.
Dr. Wallace's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 4,4652024: 11,021147%
- Other services
- 2023: 3,4622024: 4,56432%
- Lab and pathology
- 2023: 4,5452024: 4,3883%
- Office and hospital visits
- 2023: 1,6672024: 1,7706%
- Surgery
- 2023: 8452024: 847No change
- Tests and treatments
- 2023: 5372024: 61815%
- Imaging
- 2023: 2942024: 24018%
Where Dr. Wallace's Medicare services took place, 2024
- In an office23,01998%
- In a facility4292%
Dr. Wallace compared with the Mississippi median for family medicine physicians, 2024
- Dr. Wallace
- Mississippi median
- Medicare services
- 23,448vs 80029.3 times
- Medicare patients
- 612vs 2552.4 times
- Part D claims
- 17,658vs 1,7929.9 times
Medians across 967 family medicine physicians in Mississippi with Dmand AI profiles that report each measure.
Dr. Wallace'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. Wallace?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wallace and other family medicine physicians in Mississippi.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Gray Wallace treated 612 Medicare patients in 2024, average age 75
CMS counts 612 Medicare patients who saw Dr. Wallace in 2024. The largest group is 65 to 74, with 231 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 19% are also on Medicaid. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Wallace's median patient age at 72, with 62% women.
Dr. Wallace's Medicare patients by age, 2024
Dr. Wallace's Medicare patients by sex, 2024
- Women36059%
- Men25241%
Chronic conditions among Dr. Wallace's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis47%
- Chronic kidney disease39%
- Diabetes36%
- Mood disorders34%
- Depression33%
- Ischemic heart disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wallace'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
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Gray Wallace wrote 18,375 Medicare Part D claims in 2024
In 2024, Dr. Wallace wrote 18,375 Medicare Part D claims for 721 patients. 85% of them were for generic drugs. CMS names the drug for 17,658 of them, across 213 drugs with 11 or more claims each, at $1,598,697 in total drug cost. In 2023, CMS named 16,270 claims across 201 drugs.
Dr. Wallace's Part D claims by kind of drug, 2024
- Generic15,674 claims85%
- Brand-name2,671 claims15%
- Other30 claims0%
Dr. Wallace'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. Wallace's Part D claims, 2024
- Opioids2%389 of 18,375 claims
- Antibiotics4%750 of 18,375 claims
- Antipsychotics, patients 65 and over1%103 of 18,375 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: 16,2702024: 17,6589%
Drugs named by CMS: 213 in 2024, 201 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
Dr. John Gray Wallace ranks in the 60th percentile for removal of skin lesions in Medicare
Dr. Wallace accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Wallace as offering telehealth. CMS counts 13 procedures of removal of skin lesions by Dr. Wallace, more than 60% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Wallace ranks in Medicare procedure volume
- Removal of skin lesions
- 60th percentile13 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Gray Wallace received $11,268 in industry payments from 2016 to 2025
CMS Open Payments shows 1,012 general payments to Dr. Wallace from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,078.
General payments to Dr. Wallace by program year, 2016 to 2025
General payments to Dr. Wallace by kind, 2016 to 2025
- Food and beverage$11,249100%
- Education$190%
Companies that paid Dr. Wallace 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. John Gray Wallace graduated from University of Mississippi School of Medicine
Dr. Wallace graduated from University of Mississippi School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Gray Wallace'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)Doctors and Clinicians Utilization Data (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. John Gray Wallace
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. John Gray Wallace's NPI number?
Dr. John Gray Wallace's NPI number is 1831486596. It was assigned on July 1, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. John Gray Wallace?
Dr. John Gray Wallace is a family medicine physician in Kosciusko, Mississippi. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Gray Wallace practice?
Dr. Wallace practices at 332 Hwy 12 W, Kosciusko, MS 39090-3209. Dr. Wallace's primary practice is Kosciusko Medical Clinic in Kosciusko, Mississippi. Dmand AI also links Dr. Wallace to 1 hospital, 3 home health agencies, 1 group practice or clinic, 1 hospice, 1 skilled nursing facility and 1 medical group.
What is Dr. John Gray Wallace's office phone number?
The practice phone on file for Dr. Wallace is (662) 289-1800.
What is Dr. John Gray Wallace's medical license number?
Dr. Wallace holds Mississippi license 22522.
Which hospitals is Dr. John Gray Wallace affiliated with?
Dr. Wallace is affiliated with Baptist Memorial Hospital-Attala. Dmand AI links Dr. Wallace to 1 more hospital.
What medical group is Dr. John Gray Wallace part of?
Dr. Wallace is linked to Kosciusko Medical Clinic. Dmand AI links Dr. Wallace to 1 more medical group.
Does Dr. John Gray Wallace accept Medicare?
Yes. CMS data shows Dr. Wallace billed Medicare for 23,448 services in 2024, and Dr. Wallace accepts Medicare assignment.
Does Dr. John Gray Wallace offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Wallace as offering telehealth services.
How many Medicare patients does Dr. John Gray Wallace see?
CMS counts 612 Medicare patients who saw Dr. Wallace in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. John Gray Wallace bill to Medicare?
In 2024, Dr. Wallace's most billed Medicare services were injected or infused drug (J1010), injected or infused drug (J0897) and medicare temporary code (Q9967).
Where did Dr. John Gray Wallace go to medical school?
Dr. Wallace graduated from University of Mississippi School of Medicine in 2011.
What drugs does Dr. John Gray Wallace prescribe most?
In 2024 Medicare Part D data, Dr. Wallace's most prescribed drugs by claims were Amlodipine Besylate, Levothyroxine Sodium and Atorvastatin Calcium.
Has Dr. John Gray Wallace received payments from drug or device companies?
CMS Open Payments shows $11,268 in general payments to Dr. Wallace from 38 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. John Gray Wallace been practicing?
Dr. Wallace graduated from medical school in 2011, 15 years ago.
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