Dr. John R. Treer Jr., MD
- Medicare services, 2024
- 2,086
- Medicare patients, 2024
- 516
- Part D claims, 2024
- 8,725
- Hospital affiliations
- 6
- Industry payments
- $13,885
- Practice address
- 874 Ed Hall Dr, Kaufman, TX 75142
- Practice phone
- Call (214) 860-6300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Texas Health Physicians Group
Kaufman, Texas
Find Dr. Treer'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 R. Treer Jr. is an internist in Kaufman, Texas
Dr. Treer practices at Texas Health Physicians Group in Kaufman, Texas.
Dr. Treer's NPI, 1972521110, was assigned on July 17, 2006. Dr. Treer graduated from UT Southwestern Medical Center in 1997. Dr. Treer holds Texas license K5418.
- NPI
- 1972521110NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436189081
- NPI enumeration date
- July 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (214) 860-6300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John R. Treer Jr. practices at Texas Health Physicians Group in Kaufman, Texas
Dr. Treer's primary practice is Texas Health Physicians Group, at 874 Ed Hall Dr, Kaufman, TX 75142 in Kaufman County. The practice phone is (214) 860-6300.
- Texas Health Physicians Group874 Ed Hall Dr, Kaufman, TX 75142 · Kaufman CountyPhone(214) 860-6300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John R. Treer Jr. is affiliated with 12 sites of care and 2 medical groups
Dr. Treer's primary practice is Texas Health Physicians Group in Kaufman, Texas. Dr. Treer is also affiliated with Medical City Plano Hospital. The medical group on file is Texas Health Physicians Group. Dmand AI also links Dr. Treer to 5 more hospitals, 3 home health agencies, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John R. Treer Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Treer practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Texas Health Physicians Group | Available with a free account |
| +11 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John R. Treer Jr. is one of 8,437 internists in Texas
Internal medicine is Dr. Treer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Treer is board certified in internal medicine by the American Board of Internal Medicine. Dr. Treer is licensed in Texas.
Specialties and state licenses
- Internal medicine, TexasPrimary
Clinical focus
Dmand AI lists acute sinusitis, aneurysm, atrial fibrillation and flutter, bladder disease, bronchitis, chronic diabetes, chronic hypertension and coronary artery disease among the conditions Dr. Treer treats.
Internists near Dr. Treer
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. John R. Treer Jr. billed Medicare for 2,086 services in 2024
CMS data shows 2,086 Medicare services from Dr. Treer across 9 procedure codes in 2024, for 516 Medicare patients. Medicare paid $103,324 for them. Every service was in an office.
Dr. Treer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0372024: 1,0764%
- Other services
- 2023: 942024: 971933%
- Tests and treatments
- 2023: 692024: 3943%
Dr. Treer compared with the Texas median for internists, 2024
- Dr. Treer
- Texas median
- Medicare services
- 2,086vs 5393.9 times
- Medicare patients
- 516vs 1902.7 times
- Part D claims
- 7,981vs 28927.6 times
Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.
Dr. Treer'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. Treer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Treer and other internists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John R. Treer Jr. treated 516 Medicare patients in 2024, average age 76
CMS counts 516 Medicare patients who saw Dr. Treer in 2024. The largest group is 75 to 84, with 236 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.13, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Treer's median patient age at 71, with 43% women.
Dr. Treer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Treer's Medicare patients by sex, 2024
- Women24447%
- Men27253%
Chronic conditions among Dr. Treer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Ischemic heart disease34%
- Diabetes26%
- Chronic kidney disease23%
- Anxiety22%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Treer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John R. Treer Jr. wrote 8,725 Medicare Part D claims in 2024
In 2024, Dr. Treer wrote 8,725 Medicare Part D claims for 878 patients. 89% of them were for generic drugs. CMS names the drug for 7,981 of them, across 123 drugs with 11 or more claims each, at $545,603 in total drug cost. In 2023, CMS named 7,626 claims across 119 drugs.
Dr. Treer's Part D claims by kind of drug, 2024
- Generic7,751 claims89%
- Brand-name932 claims11%
- Other42 claims0%
Dr. Treer'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. Treer's Part D claims, 2024
- Opioids1%97 of 8,725 claims
- Antibiotics1%106 of 8,725 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: 7,6262024: 7,9815%
Drugs named by CMS: 123 in 2024, 119 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 R. Treer Jr. offers telehealth to Medicare patients
Dr. Treer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Treer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John R. Treer Jr. received $13,885 in industry payments from 2016 to 2025
CMS Open Payments shows 919 general payments to Dr. Treer from 58 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $1,907.
General payments to Dr. Treer by program year, 2016 to 2025
General payments to Dr. Treer by kind, 2016 to 2025
- Food and beverage$13,821100%
- Education$640%
Companies that paid Dr. Treer 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 R. Treer Jr. graduated from UT Southwestern Medical Center
Dr. Treer graduated from UT Southwestern Medical Center in 1997.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John R. Treer Jr. accepts plans from 21 insurance carriers
Dr. Treer is in network with 21 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Cigna
- Elevance
- HCSC
- Alliant Health Plans
- Aspirus Health Plan
- +13 more carriersWith a free account
Plan types Dr. Treer accepts, by number of carriers
- PPO13
- HMO11
- Medicare8
- POS5
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John R. Treer 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 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 R. Treer 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. John R. Treer Jr.'s NPI number?
Dr. John R. Treer Jr.'s NPI number is 1972521110. It was assigned on July 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John R. Treer Jr.?
Dr. John R. Treer Jr. is an internist in Kaufman, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John R. Treer Jr. practice?
Dr. Treer practices at 874 Ed Hall Dr, Kaufman, TX 75142. Dr. Treer's primary practice is Texas Health Physicians Group in Kaufman, Texas. Dmand AI also links Dr. Treer to 5 hospitals, 3 home health agencies, 2 group practices and clinics and 1 medical group.
What is Dr. John R. Treer Jr.'s office phone number?
The practice phone on file for Dr. Treer is (214) 860-6300.
What is Dr. John R. Treer Jr.'s medical license number?
Dr. Treer holds Texas license K5418.
Which hospitals is Dr. John R. Treer Jr. affiliated with?
Dr. Treer is affiliated with Medical City Plano Hospital. Dmand AI links Dr. Treer to 5 more hospitals.
What medical group is Dr. John R. Treer Jr. part of?
Dr. Treer is linked to Texas Health Physicians Group. Dmand AI links Dr. Treer to 1 more medical group.
Does Dr. John R. Treer Jr. accept Medicare?
Yes. CMS data shows Dr. Treer billed Medicare for 2,086 services in 2024, and Dr. Treer accepts Medicare assignment.
Does Dr. John R. Treer Jr. offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Treer as offering telehealth services.
How many Medicare patients does Dr. John R. Treer Jr. see?
CMS counts 516 Medicare patients who saw Dr. Treer in 2024, with an average age of 76.
Show 7 more questionsShow fewer questions
Is Dr. John R. Treer Jr. board certified?
Yes. Dr. Treer is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John R. Treer Jr. bill to Medicare?
In 2024, Dr. Treer's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and office visit, established patient (99213).
Where did Dr. John R. Treer Jr. go to medical school?
Dr. Treer graduated from UT Southwestern Medical Center in 1997.
What drugs does Dr. John R. Treer Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Treer's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Levothyroxine Sodium.
Has Dr. John R. Treer Jr. received payments from drug or device companies?
CMS Open Payments shows $13,885 in general payments to Dr. Treer from 58 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. John R. Treer Jr. been practicing?
Dr. Treer graduated from medical school in 1997, 29 years ago.
What insurance does Dr. John R. Treer Jr. accept?
Dr. Treer is in network with 21 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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