James P. Lash
- Medicare services, 2024
- 133
- Medicare patients, 2024
- 71
- Part D claims, 2024
- 130
- Publications
- 226
- Clinical trials
- 1
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find James Lash's professional email, personal email and mobile number
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James P. Lash is a nephrologist in Evanston, Illinois
James Lash practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
James Lash's NPI, 1548365646, was assigned on September 13, 2006. James Lash graduated from University of Chicago, Pritzker School of Medicine in 1981. James Lash holds Illinois license 036065527.
- NPI
- 1548365646NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9638203623
- NPI enumeration date
- September 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James P. Lash practices at Evanston Hospital in Evanston, Illinois
James Lash's primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
James P. Lash is affiliated with 2 sites of care and 2 medical groups
James Lash's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. James Lash is also affiliated with University of Illinois Hospital. The medical group on file is University of Illinois Physicians Group (UIPG). Dmand AI also links James Lash to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at James P. Lash's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Lash practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evanston Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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James P. Lash is one of 534 nephrologists in Illinois
Nephrology is James Lash's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. James Lash is licensed in Illinois.
Specialties and state licenses
- Nephrology, IllinoisPrimary
Nephrologists near James Lash
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
James P. Lash billed Medicare for 133 services in 2024
CMS data shows 133 Medicare services from James Lash across 5 procedure codes in 2024, for 71 Medicare patients. Medicare paid $7,684 for them. Every service was in a facility, such as a hospital, rather than an office.
James Lash's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1592024: 7752%
- Tests and treatments
- 2023: 352024: 336%
- Other services
- 2023: 02024: 23
James Lash compared with the Illinois median for nephrologists, 2024
- James Lash
- Illinois median
- Medicare services
- 133vs 1,28490% below
- Medicare patients
- 71vs 35780% below
- Part D claims
- 39vs 57893% below
Medians across 526 nephrologists in Illinois with Dmand AI profiles that report each measure.
James Lash'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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Medicare shows one payer. Book a meeting to get commercial claims data for James Lash and other nephrologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
James P. Lash treated 71 Medicare patients in 2024, average age 66
CMS counts 71 Medicare patients who saw James Lash in 2024. The largest group is 65 to 74, with 31 patients. 75% of them have chronic kidney disease, and 75% have diabetes. 65% are also on Medicaid. Their average risk score is 6.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts James Lash's median patient age at 66, with 46% women.
James Lash's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
James Lash's Medicare patients by sex, 2024
- Women2738%
- Men4462%
Chronic conditions among James Lash's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease56%
- Heart failure52%
- Arthritis48%
- COPD30%
Share of Medicare patients with each condition. A patient can have several.
James Lash's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women46%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
James P. Lash wrote 130 Medicare Part D claims in 2024
In 2024, James Lash wrote 130 Medicare Part D claims for 29 patients. 76% of them were for generic drugs. CMS names the drug for 39 of them, across 3 drugs with 11 or more claims each, at $206 in total drug cost. In 2023, CMS named 31 claims across 2 drugs.
James Lash's Part D claims by kind of drug, 2024
- Generic99 claims76%
- Brand-name31 claims24%
James Lash'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 312024: 3926%
Drugs named by CMS: 3 in 2024, 2 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
James P. Lash scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for James Lash for performance year 2024, reported as part of a group. James Lash accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
James Lash's MIPS scores, performance year 2024
- 93of 100Final score
- 73.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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James P. Lash has 226 publications on record
Dmand AI links 226 papers to James Lash, published from 2005 to 2025. 2020 was the busiest year, with 25. The most frequent topics are Renal Insufficiency, Chronic, Glomerular Filtration Rate and Hispanic or Latino. James Lash has published most often in Am J Kidney Dis. James Lash's most frequent co-authors are Ana C. Ricardo, MD, MPH, Alan S. Go, MD and Raymond R. Townsend, MD.
James Lash's papers by year, 2016 to 2025
Topics James Lash writes about most
- Renal Insufficiency, Chronic
- Glomerular Filtration Rate
- Hispanic or Latino
- Disease Progression
- Cardiovascular Diseases
- Kidney Failure, Chronic
- Heart Failure
- Albuminuria
James Lash's most frequent co-authors
- Ana C. Ricardo, MD, MPH65 shared papers
- Alan S. Go, MD46 shared papers
- Raymond R. Townsend, MD34 shared papers
Recent publications by James Lash
See who James Lash researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who James Lash works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
James P. Lash has worked on 1 clinical trial
Dmand AI links James Lash to 1 clinical trial. Conditions studied include Renal Insufficiency, Chronic and Renal Insufficiency.
Conditions in James Lash's trials
- Renal Insufficiency, Chronic
- Renal Insufficiency
Investigators on the most trials with James Lash
Recent clinical trials with James Lash
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
James P. Lash graduated from University of Chicago, Pritzker School of Medicine
James Lash graduated from University of Chicago, Pritzker School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for James P. Lash'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 James P. Lash
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James P. Lash's NPI number?
James P. Lash's NPI number is 1548365646. It was assigned on September 13, 2006, and it is active in the NPI Registry.
What does James P. Lash specialize in?
James P. Lash is a nephrologist in Evanston, Illinois. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does James P. Lash practice?
James Lash practices at 2650 Ridge Ave, Evanston, IL 60201. James Lash's primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links James Lash to 1 medical group.
What is James P. Lash's office phone number?
The practice phone on file for James Lash is (847) 570-2000.
What is James P. Lash's medical license number?
James Lash holds Illinois license 036065527.
Which hospitals is James P. Lash affiliated with?
James Lash practices at Evanston Hospital in Evanston, Illinois. James Lash is also affiliated with University of Illinois Hospital.
What medical group is James P. Lash part of?
James Lash is linked to University of Illinois Physicians Group (UIPG). Dmand AI links James Lash to 1 more medical group.
Does James P. Lash accept Medicare?
Yes. CMS data shows James Lash billed Medicare for 133 services in 2024, and James Lash accepts Medicare assignment.
What is James P. Lash's MIPS score?
James Lash's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
How many Medicare patients does James P. Lash see?
CMS counts 71 Medicare patients who saw James Lash in 2024, with an average age of 66.
Show 6 more questionsShow fewer questions
What services does James P. Lash bill to Medicare?
In 2024, James Lash's most billed Medicare services were hospital inpatient care (99232), dialysis (90935) and office visit, established patient (99214).
Where did James P. Lash go to medical school?
James Lash graduated from University of Chicago, Pritzker School of Medicine in 1981.
What drugs does James P. Lash prescribe most?
In 2024 Medicare Part D data, James Lash's most prescribed drugs by claims were Furosemide, Famotidine and Carvedilol.
How long has James P. Lash been practicing?
James Lash graduated from medical school in 1981, 45 years ago.
Does James P. Lash do research?
Dmand AI links 226 publications to James Lash, published from 2005 to 2025. James Lash has worked on 1 clinical trial.
Who does James P. Lash publish with?
James Lash's most frequent co-authors are Ana C. Ricardo, MD, MPH (65 shared papers), Alan S. Go, MD (46 shared papers) and Raymond R. Townsend, MD (34 shared papers).
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