Dr. William Stephen Lefler Jr., MD
- Medicare services, 2024
- 126
- Medicare patients, 2024
- 56
- Part D claims, 2024
- 62
- Hospital affiliations
- 3
- Industry payments
- $80
- Practice address
- 777 Hospital Way, Pocatello, ID 83201
- Practice phone
- Call (208) 239-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lefler's professional email, personal email and mobile number
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Dr. William Stephen Lefler Jr. is a nephrologist in Pocatello, Idaho
Dr. Lefler practices at Portneuf Medical Center in Pocatello, Idaho, part of Ardent Health.
Dr. Lefler's NPI, 1023235058, was assigned on April 19, 2007. Dr. Lefler graduated from Medical College of Georgia School of Medicine in 2007. Dr. Lefler holds Idaho license MC-1695.
- NPI
- 1023235058NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325172711
- NPI enumeration date
- April 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (208) 239-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Stephen Lefler Jr. practices at Portneuf Medical Center in Pocatello, Idaho
Dr. Lefler's primary practice is Portneuf Medical Center, at 777 Hospital Way, Pocatello, ID 83201 in Bannock County. The practice phone is (208) 239-1000.
- Portneuf Medical Center777 Hospital Way, Pocatello, ID 83201 · Bannock CountyPhone(208) 239-1000
Source: Dmand AI Affiliation Data
Dr. William Stephen Lefler Jr. is affiliated with 5 sites of care and 4 medical groups
Dr. Lefler's primary practice is Portneuf Medical Center in Pocatello, Idaho, part of Ardent Health. Dr. Lefler is also affiliated with Banner North Colorado Medical Center. The medical group on file is Portneuf Medical. Dmand AI also links Dr. Lefler to 1 more hospital, 3 medical groups and 2 group practices and clinics, 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. William Stephen Lefler Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lefler practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Portneuf Medical Center | Available with a free account |
| +4 more sites and 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 Ardent Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Stephen Lefler Jr. is one of 32 nephrologists in Idaho
Nephrology is Dr. Lefler's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Lefler is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Lefler's licenses on file in 2 states: Idaho and Nevada.
Specialties and state licenses
- Nephrology, IdahoPrimary
- Nevada license
Nephrologists near Dr. Lefler
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. William Stephen Lefler Jr. billed Medicare for 126 services in 2024
CMS data shows 126 Medicare services from Dr. Lefler across 3 procedure codes in 2024, for 56 Medicare patients. Medicare paid $8,623 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lefler's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4322024: 12671%
- Tests and treatments
- 2023: 202024: 0100%
Dr. Lefler compared with the Idaho median for nephrologists, 2024
- Dr. Lefler
- Idaho median
- Medicare services
- 126vs 72283% below
- Medicare patients
- 56vs 32383% below
- Part D claims
- 206vs 46956% below
Medians across 32 nephrologists in Idaho with Dmand AI profiles that report each measure.
Dr. Lefler'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. Lefler?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lefler and other nephrologists in Idaho.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Stephen Lefler Jr. treated 56 Medicare patients in 2024, average age 75
CMS counts 56 Medicare patients who saw Dr. Lefler in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 34% are also on Medicaid. Their average risk score is 3.50, 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. Lefler's median patient age at 68, with 57% women.
Dr. Lefler's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lefler's Medicare patients by sex, 2024
- Women2239%
- Men3461%
Chronic conditions among Dr. Lefler's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol70%
- Heart failure52%
- Arthritis50%
- Ischemic heart disease50%
- Diabetes43%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lefler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Stephen Lefler Jr. wrote 62 Medicare Part D claims in 2024
In 2024, Dr. Lefler wrote 62 Medicare Part D claims for 39 patients. 90% of them were for generic drugs. They cover 9 drugs, with $10,082 in total drug cost. In 2021, CMS named 41 claims across 3 drugs.
Dr. Lefler's Part D claims by kind of drug, 2024
- Generic56 claims90%
- Brand-name and other6 claims10%
Dr. Lefler's most prescribed drugs by claims, 2023
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, 2021 to 2023
- 2021
- 2023
- Claims for drugs CMS names
- 2021: 412023: 206402%
Drugs named by CMS: 9 in 2023, 3 in 2021.
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. William Stephen Lefler Jr. takes part in Medicare
Dr. Lefler 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
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Dr. William Stephen Lefler Jr. received $80 in industry payments from 2016 to 2020
CMS Open Payments shows 4 general payments to Dr. Lefler from 4 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. OPKO Pharmaceuticals, LLC paid the most, $24.
General payments to Dr. Lefler by program year, 2016 to 2020
Companies that paid Dr. Lefler the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William Stephen Lefler Jr. graduated from Medical College of Georgia School of Medicine
Dr. Lefler graduated from Medical College of Georgia School of Medicine in 2007.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Sources for Dr. William Stephen Lefler 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 | 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) |
| 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. William Stephen Lefler 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. William Stephen Lefler Jr.'s NPI number?
Dr. William Stephen Lefler Jr.'s NPI number is 1023235058. It was assigned on April 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. William Stephen Lefler Jr.?
Dr. William Stephen Lefler Jr. is a nephrologist in Pocatello, Idaho. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. William Stephen Lefler Jr. practice?
Dr. Lefler practices at 777 Hospital Way, Pocatello, ID 83201. Dr. Lefler's primary practice is Portneuf Medical Center in Pocatello, Idaho, part of Ardent Health. Dmand AI also links Dr. Lefler to 1 hospital, 3 medical groups and 2 group practices and clinics.
What is Dr. William Stephen Lefler Jr.'s office phone number?
The practice phone on file for Dr. Lefler is (208) 239-1000.
What is Dr. William Stephen Lefler Jr.'s medical license number?
Dr. Lefler holds Idaho license MC-1695, one of the licenses on file in 2 states.
Which states has Dr. William Stephen Lefler Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Lefler in Idaho and Nevada.
Which hospitals is Dr. William Stephen Lefler Jr. affiliated with?
Dr. Lefler practices at Portneuf Medical Center in Pocatello, Idaho. Dr. Lefler is also affiliated with Banner North Colorado Medical Center. Dmand AI links Dr. Lefler to 1 more hospital.
What medical group is Dr. William Stephen Lefler Jr. part of?
Dr. Lefler is linked to Portneuf Medical. Dmand AI links Dr. Lefler to 3 more medical groups.
Does Dr. William Stephen Lefler Jr. accept Medicare?
Yes. CMS data shows Dr. Lefler billed Medicare for 126 services in 2024, and Dr. Lefler accepts Medicare assignment.
How many Medicare patients does Dr. William Stephen Lefler Jr. see?
CMS counts 56 Medicare patients who saw Dr. Lefler in 2024, with an average age of 75.
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Is Dr. William Stephen Lefler Jr. board certified?
Yes. Dr. Lefler is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. William Stephen Lefler Jr. bill to Medicare?
In 2024, Dr. Lefler's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and hospital inpatient care (99233).
Where did Dr. William Stephen Lefler Jr. go to medical school?
Dr. Lefler graduated from Medical College of Georgia School of Medicine in 2007.
What drugs does Dr. William Stephen Lefler Jr. prescribe most?
In 2023 Medicare Part D data, Dr. Lefler's most prescribed drugs by claims were Amlodipine Besylate, Calcitriol and Furosemide.
Has Dr. William Stephen Lefler Jr. received payments from drug or device companies?
CMS Open Payments shows $80 in general payments to Dr. Lefler from 4 companies from 2016 to 2020. The largest total came from OPKO Pharmaceuticals, LLC.
How long has Dr. William Stephen Lefler Jr. been practicing?
Dr. Lefler graduated from medical school in 2007, 19 years ago.
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