Dr. Robert James Leach, MD
- Medicare services, 2024
- 6,798
- Medicare patients, 2024
- 593
- Part D claims, 2024
- 2,049
- Hospital affiliations
- 2
- Industry payments
- $4,114
- Practice address
- 5002 Cowhorn Creek Rd, Texarkana, TX 75503
- Practice phone
- Call (870) 621-3135
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Twin Cities Dialysis
Texarkana, Texas
Find Dr. Leach'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. Robert James Leach is a nephrologist in Texarkana, Texas
Dr. Leach practices at Twin Cities Dialysis in Texarkana, Texas.
Dr. Leach's NPI, 1114910411, was assigned on August 23, 2005. Dr. Leach graduated from University of Kansas School of Med (KC/Wich/Sal) in 1995. Dr. Leach holds Texas license R1810.
- NPI
- 1114910411NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658352893
- NPI enumeration date
- August 23, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (870) 621-3135
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert James Leach practices at Twin Cities Dialysis in Texarkana, Texas
Dr. Leach's primary practice is Twin Cities Dialysis, at 5002 Cowhorn Creek Rd, Texarkana, TX 75503 in Bowie County. The practice phone is (870) 621-3135.
- Twin Cities Dialysis5002 Cowhorn Creek Rd, Texarkana, TX 75503 · Bowie CountyPhone(870) 621-3135
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert James Leach is affiliated with 10 sites of care and 2 medical groups
Dr. Leach's primary practice is Twin Cities Dialysis in Texarkana, Texas. Dr. Leach is also affiliated with CHRISTUS St. Michael Hospital. The medical group on file is CHRISTUS Trinity Clinic. Dmand AI also links Dr. Leach to 1 more hospital, 5 dialysis centers, 2 group practices and clinics and 1 medical group, each named with a free account.
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. Robert James Leach's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leach practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Twin Cities Dialysis | Available with a free account |
| +9 more sites and 1 medical group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert James Leach is one of 1,045 nephrologists in Texas
Nephrology is Dr. Leach's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Leach's licenses on file in 6 states: Texas, Arkansas, Colorado, Idaho, Oklahoma and Utah.
Specialties and state licenses
- Nephrology, TexasPrimary
- Arkansas license
- Colorado license
- Idaho license
- Oklahoma license
- Hospitalist, Utah
Nephrologists near Dr. Leach
Counts of nephrologists 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 James Leach billed Medicare for 6,798 services in 2024
CMS data shows 6,798 Medicare services from Dr. Leach across 41 procedure codes in 2024, for 593 Medicare patients. Medicare paid $291,312 for them.
Dr. Leach's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3,4302024: 4,24524%
- Office and hospital visits
- 2023: 1,1522024: 1,33015%
- Surgery
- 2023: 5512024: 5663%
- Tests and treatments
- 2023: 5702024: 5562%
- Other services
- 2023: 02024: 101
Where Dr. Leach's Medicare services took place, 2024
- In an office5,91387%
- In a facility88513%
Dr. Leach compared with the Texas median for nephrologists, 2024
- Dr. Leach
- Texas median
- Medicare services
- 6,798vs 1,0486.5 times
- Medicare patients
- 593vs 2772.1 times
- Part D claims
- 1,810vs 7582.4 times
Medians across 1,017 nephrologists in Texas with Dmand AI profiles that report each measure.
Dr. Leach'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. Leach?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leach and other nephrologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert James Leach treated 593 Medicare patients in 2024, average age 71
CMS counts 593 Medicare patients who saw Dr. Leach in 2024. The largest group is 75 to 84, with 217 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 24% are also on Medicaid. Their average risk score is 4.59, 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. Leach's median patient age at 72, with 48% women.
Dr. Leach's Medicare patients by age, 2024
Dr. Leach's Medicare patients by sex, 2024
- Women28748%
- Men30652%
Chronic conditions among Dr. Leach's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes68%
- Heart failure51%
- Arthritis48%
- Ischemic heart disease47%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leach'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
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert James Leach wrote 2,049 Medicare Part D claims in 2024
In 2024, Dr. Leach wrote 2,049 Medicare Part D claims for 359 patients. 78% of them were for generic drugs. CMS names the drug for 1,810 of them, across 33 drugs with 11 or more claims each, at $312,760 in total drug cost. In 2023, CMS named 1,331 claims across 26 drugs.
Dr. Leach's Part D claims by kind of drug, 2024
- Generic1,591 claims78%
- Brand-name458 claims22%
Dr. Leach'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. Leach's Part D claims, 2024
- Antibiotics4%90 of 2,049 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: 1,3312024: 1,81036%
Drugs named by CMS: 33 in 2024, 26 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 James Leach takes part in Medicare
Dr. Leach 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Robert James Leach received $4,114 in industry payments from 2018 to 2025
CMS Open Payments shows 162 general payments to Dr. Leach from 24 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 79% of the total. Janssen Pharmaceuticals, Inc paid the most, $765.
General payments to Dr. Leach by program year, 2018 to 2025
General payments to Dr. Leach by kind, 2018 to 2025
- Food and beverage$3,24379%
- Consulting fees$75018%
- Education$1213%
Companies that paid Dr. Leach the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert James Leach graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Leach graduated from University of Kansas School of Med (KC/Wich/Sal) in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert James Leach'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) |
| 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 James Leach
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 James Leach's NPI number?
Dr. Robert James Leach's NPI number is 1114910411. It was assigned on August 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert James Leach?
Dr. Robert James Leach is a nephrologist in Texarkana, Texas. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Robert James Leach practice?
Dr. Leach practices at 5002 Cowhorn Creek Rd, Texarkana, TX 75503. Dr. Leach's primary practice is Twin Cities Dialysis in Texarkana, Texas. Dmand AI also links Dr. Leach to 1 hospital, 5 dialysis centers, 2 group practices and clinics and 1 medical group.
What is Dr. Robert James Leach's office phone number?
The practice phone on file for Dr. Leach is (870) 621-3135.
What is Dr. Robert James Leach's medical license number?
Dr. Leach holds Texas license R1810, one of the licenses on file in 6 states.
Which states has Dr. Robert James Leach been licensed in?
Dmand AI has state licenses on file for Dr. Leach in Texas, Arkansas, Colorado, Idaho, Oklahoma and Utah.
Which hospitals is Dr. Robert James Leach affiliated with?
Dr. Leach is affiliated with CHRISTUS St. Michael Hospital. Dmand AI links Dr. Leach to 1 more hospital.
What medical group is Dr. Robert James Leach part of?
Dr. Leach is linked to CHRISTUS Trinity Clinic. Dmand AI links Dr. Leach to 1 more medical group.
Does Dr. Robert James Leach accept Medicare?
Yes. CMS data shows Dr. Leach billed Medicare for 6,798 services in 2024, and Dr. Leach accepts Medicare assignment.
How many Medicare patients does Dr. Robert James Leach see?
CMS counts 593 Medicare patients who saw Dr. Leach in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Robert James Leach bill to Medicare?
In 2024, Dr. Leach's most billed Medicare services were surgery: heart and blood vessels (36415), office visit, established patient (99214) and lab and pathology test (85025).
Where did Dr. Robert James Leach go to medical school?
Dr. Leach graduated from University of Kansas School of Med (KC/Wich/Sal) in 1995.
What drugs does Dr. Robert James Leach prescribe most?
In 2024 Medicare Part D data, Dr. Leach's most prescribed drugs by claims were Furosemide, Losartan Potassium and Jardiance.
Has Dr. Robert James Leach received payments from drug or device companies?
CMS Open Payments shows $4,114 in general payments to Dr. Leach from 24 companies from 2018 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Robert James Leach been practicing?
Dr. Leach graduated from medical school in 1995, 31 years ago.
Selling to nephrology practices?
See nephrologists in Texas by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card