Dr. Jon Harvey Gray, MD
- Medicare services, 2024
- 541
- Medicare patients, 2024
- 469
- Part D claims, 2024
- 484
- Hospital affiliations
- 1
- Industry payments
- $1,487
- Practice address
- 1701 Oak Park Blvd, Lake Charles, LA 70601
- Practice phone
- Call (337) 494-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Jon Harvey Gray is a general practice physician in Lake Charles, Louisiana
Dr. Gray practices at Lake Charles Memorial Hospital in Lake Charles, Louisiana, part of Lake Charles Memorial Health System.
Dr. Gray's NPI, 1356322077, was assigned on November 9, 2005. Dr. Gray holds Louisiana license 022139.
- NPI
- 1356322077NPI Registry (opens in a new tab)
- NPI enumeration date
- November 9, 2005
- NPI status
- Active
- Practice phone
- (337) 494-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Jon Harvey Gray practices at Lake Charles Memorial Hospital in Lake Charles, Louisiana
Dr. Gray's primary practice is Lake Charles Memorial Hospital, at 1701 Oak Park Blvd, Lake Charles, LA 70601 in Calcasieu Parish. The practice phone is (337) 494-3000.
- Lake Charles Memorial Hospital1701 Oak Park Blvd, Lake Charles, LA 70601 · Calcasieu ParishPhone(337) 494-3000
Source: Dmand AI Affiliation Data
Dr. Jon Harvey Gray is affiliated with 1 site of care and 4 medical groups
Dr. Gray's primary practice is Lake Charles Memorial Hospital in Lake Charles, Louisiana, part of Lake Charles Memorial Health System. The medical group on file is St. Tammany Health System. Dmand AI also links Dr. Gray to 3 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jon Harvey Gray's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gray practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lake Charles Memorial Hospital | Available with a free account |
| +3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Lake Charles Memorial Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jon Harvey Gray is one of 111 general practice physicians in Louisiana
General practice is Dr. Gray's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Gray is licensed in Louisiana.
Specialties and state licenses
- General practice, LouisianaPrimary
General practice physicians near Dr. Gray
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. Jon Harvey Gray billed Medicare for 541 services in 2024
CMS data shows 541 Medicare services from Dr. Gray across 3 procedure codes in 2024, for 469 Medicare patients. Medicare paid $67,468 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gray's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6792024: 54120%
Dr. Gray compared with the Louisiana median for general practice physicians, 2024
- Dr. Gray
- Louisiana median
- Medicare services
- 541vs 1862.9 times
- Medicare patients
- 469vs 1353.5 times
- Part D claims
- 298vs 1162.6 times
Medians across 121 general practice physicians in Louisiana with Dmand AI profiles that report each measure.
Dr. Gray'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jon Harvey Gray treated 469 Medicare patients in 2024, average age 75
CMS counts 469 Medicare patients who saw Dr. Gray in 2024. The largest group is 75 to 84, with 150 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.26, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Gray's median patient age at 46, with 54% women.
Dr. Gray's Medicare patients by age, 2024
Dr. Gray's Medicare patients by sex, 2024
- Women25254%
- Men21746%
Chronic conditions among Dr. Gray's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Anxiety45%
- Diabetes45%
- Chronic kidney disease44%
- Ischemic heart disease44%
- Mood disorders43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gray's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jon Harvey Gray wrote 484 Medicare Part D claims in 2024
In 2024, Dr. Gray wrote 484 Medicare Part D claims for 269 patients. 98% of them were for generic drugs. CMS names the drug for 298 of them, across 9 drugs with 11 or more claims each, at $1,230 in total drug cost. In 2023, CMS named 350 claims across 13 drugs.
Dr. Gray's Part D claims by kind of drug, 2024
- Generic475 claims98%
- Brand-name and other9 claims2%
Dr. Gray'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. Gray's Part D claims, 2024
- Opioids29%142 of 484 claims
- Antibiotics16%79 of 484 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: 3502024: 29815%
Drugs named by CMS: 9 in 2024, 13 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
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Dr. Jon Harvey Gray received $1,487 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Gray from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 61% of the total. BTG International, Inc. paid the most, $578.
General payments to Dr. Gray by program year, 2016 to 2025
General payments to Dr. Gray by kind, 2016 to 2025
- Food and beverage$90961%
- Travel and lodging$57839%
Companies that paid Dr. Gray the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jon Harvey Gray'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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Jon Harvey Gray
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. Jon Harvey Gray's NPI number?
Dr. Jon Harvey Gray's NPI number is 1356322077. It was assigned on November 9, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Jon Harvey Gray?
Dr. Jon Harvey Gray is a general practice physician in Lake Charles, Louisiana. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Jon Harvey Gray practice?
Dr. Gray practices at 1701 Oak Park Blvd, Lake Charles, LA 70601. Dr. Gray's primary practice is Lake Charles Memorial Hospital in Lake Charles, Louisiana, part of Lake Charles Memorial Health System. Dmand AI also links Dr. Gray to 3 medical groups.
What is Dr. Jon Harvey Gray's office phone number?
The practice phone on file for Dr. Gray is (337) 494-3000.
What is Dr. Jon Harvey Gray's medical license number?
Dr. Gray holds Louisiana license 022139.
Which hospitals is Dr. Jon Harvey Gray affiliated with?
Dr. Gray practices at Lake Charles Memorial Hospital in Lake Charles, Louisiana.
What medical group is Dr. Jon Harvey Gray part of?
Dr. Gray is linked to St. Tammany Health System. Dmand AI links Dr. Gray to 3 more medical groups.
Does Dr. Jon Harvey Gray accept Medicare?
Yes. CMS data shows Dr. Gray billed Medicare for 541 services in 2024.
How many Medicare patients does Dr. Jon Harvey Gray see?
CMS counts 469 Medicare patients who saw Dr. Gray in 2024, with an average age of 75.
What services does Dr. Jon Harvey Gray bill to Medicare?
In 2024, Dr. Gray's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
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What drugs does Dr. Jon Harvey Gray prescribe most?
In 2024 Medicare Part D data, Dr. Gray's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Prednisone and Prochlorperazine Maleate.
Has Dr. Jon Harvey Gray received payments from drug or device companies?
CMS Open Payments shows $1,487 in general payments to Dr. Gray from 13 companies from 2016 to 2025. The largest total came from BTG International, Inc.
How long has Dr. Jon Harvey Gray been practicing?
Dr. Gray's NPI was assigned in 2005.
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