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Louis E. Leff
NPI1962505537PAC ID7315840964
- Medicare services, 2024
- 331
- Medicare patients, 2024
- 134
- Part D claims, 2024
- 3,750
- Publications
- 1
- MIPS score, 2024
- 84
- Practice address
- 200 Lothrop Street, Pittsburgh, PA 15213
- Practice phone
- Call (412) 647-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Louis Leff'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.
Louis E. Leff is an internist in Pittsburgh, Pennsylvania
Louis Leff practices at UPMC Presbyterian in Pittsburgh, Pennsylvania, part of University of Pittsburgh Medical Center.
Louis Leff's NPI, 1962505537, was assigned on September 7, 2006. Louis Leff graduated from Perelman School of Med at the University of Pennsylvania in 1985. Louis Leff holds Pennsylvania license MD036723E.
NPI and contact details
- NPI
- 1962505537NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315840964
- NPI enumeration date
- September 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (412) 647-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Louis E. Leff practices at UPMC Presbyterian in Pittsburgh, Pennsylvania
Louis Leff's primary practice is UPMC Presbyterian, at 200 Lothrop Street, Pittsburgh, PA 15213 in Allegheny County. The practice phone is (412) 647-2345.
- UPMC Presbyterian200 Lothrop Street, Pittsburgh, PA 15213 · Allegheny CountyPhone(412) 647-2345
Source: Dmand AI Affiliation Data
Louis E. Leff is affiliated with 6 sites of care and 2 medical groups
Louis Leff's primary practice is UPMC Presbyterian in Pittsburgh, Pennsylvania, part of University of Pittsburgh Medical Center. Louis Leff is also affiliated with Select Specialty Hospital - Pittsburgh / UPMC. The medical group on file is Stull, Jarvis, and Spinola Internal Medicine Associates-UPMC. Dmand AI also links Louis Leff to 2 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Select Specialty Hospital - Pittsburgh / UPMCStull, Jarvis, and Spinola Internal Medicine Associates-UPMC2 hospitalsNames with a free account2 group practices and clinicsNames with a free account1 medical groupName with a free account
See all 8 affiliations for Louis LeffSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Louis E. Leff's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Louis Leff practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UPMC Presbyterian | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Louis E. Leff is one of 5,665 internists in Pennsylvania
Internal medicine is Louis Leff's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Louis Leff is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Louis Leff
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
Louis E. Leff billed Medicare for 331 services in 2024
CMS data shows 331 Medicare services from Louis Leff across 5 procedure codes in 2024, for 134 Medicare patients. Medicare paid $27,133 for them.
Medicare services, 2024331
Medicare patients134
Paid by Medicare$27,133
Procedure codes5
Louis Leff's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3692024: 29221%
- Other services
- 2023: 572024: 3932%
- Tests and treatments
- 2023: 192024: 0100%
Where Louis Leff's Medicare services took place, 2024
- In an office13641%
- In a facility19559%
Louis Leff compared with the Pennsylvania median for internists, 2024
- Louis Leff
- Pennsylvania median
- Medicare services
- 331vs 41721% below
- Medicare patients
- 134vs 18528% below
- Part D claims
- 3,222vs 22414.4 times
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Louis Leff'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 Louis Leff?
Medicare shows one payer. Book a meeting to get commercial claims data for Louis Leff and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Louis E. Leff treated 134 Medicare patients in 2024, average age 74
CMS counts 134 Medicare patients who saw Louis Leff in 2024. The largest group is 65 to 74, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Louis Leff's median patient age at 74, with 53% women.
Medicare patients, 2024134
Average age74
Average risk score1.47
Also on Medicaid22%
Louis Leff's Medicare patients by age, 2024
Louis Leff's Medicare patients by sex, 2024
- Women6851%
- Men6649%
Chronic conditions among Louis Leff's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Anxiety37%
- Ischemic heart disease36%
- Mood disorders34%
- Diabetes33%
- Depression31%
Share of Medicare patients with each condition. A patient can have several.
Louis Leff's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Louis E. Leff wrote 3,750 Medicare Part D claims in 2024
In 2024, Louis Leff wrote 3,750 Medicare Part D claims for 348 patients. 85% of them were for generic drugs. CMS names the drug for 3,222 of them, across 87 drugs with 11 or more claims each, at $207,124 in total drug cost. In 2023, CMS named 3,472 claims across 94 drugs.
Part D claims, 20243,750
Drugs named by CMS87
Total drug cost$207,124
Part D patients348
Louis Leff's Part D claims by kind of drug, 2024
- Generic3,203 claims85%
- Brand-name479 claims13%
- Other68 claims2%
Louis Leff'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 Louis Leff's Part D claims, 2024
- Opioids3%114 of 3,750 claims
- Antibiotics1%47 of 3,750 claims
- Antipsychotics, patients 65 and over1%35 of 3,750 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: 3,4722024: 3,2227%
Drugs named by CMS: 87 in 2024, 94 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
Louis E. Leff scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Louis Leff for performance year 2024, reported as part of a group. Louis Leff accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Louis Leff as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Louis Leff's MIPS scores, performance year 2024
- 84of 100Final score
- 70.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 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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Louis E. Leff has 1 publication on record
Dmand AI links 1 paper to Louis Leff.
Papers1
Recent publications by Louis Leff
See who Louis Leff researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Louis Leff works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Louis E. Leff graduated from Perelman School of Med at the University of Pennsylvania
Louis Leff graduated from Perelman School of Med at the University of Pennsylvania in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Louis E. Leff'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 |
| 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 Louis E. Leff
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Louis E. Leff's NPI number?
Louis E. Leff's NPI number is 1962505537. It was assigned on September 7, 2006, and it is active in the NPI Registry.
What does Louis E. Leff specialize in?
Louis E. Leff is an internist in Pittsburgh, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Louis E. Leff practice?
Louis Leff practices at 200 Lothrop Street, Pittsburgh, PA 15213. Louis Leff's primary practice is UPMC Presbyterian in Pittsburgh, Pennsylvania, part of University of Pittsburgh Medical Center. Dmand AI also links Louis Leff to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Louis E. Leff's office phone number?
The practice phone on file for Louis Leff is (412) 647-2345.
What is Louis E. Leff's medical license number?
Louis Leff holds Pennsylvania license MD036723E.
Which hospitals is Louis E. Leff affiliated with?
Louis Leff practices at UPMC Presbyterian in Pittsburgh, Pennsylvania. Louis Leff is also affiliated with Select Specialty Hospital - Pittsburgh / UPMC. Dmand AI links Louis Leff to 2 more hospitals.
What medical group is Louis E. Leff part of?
Louis Leff is linked to Stull, Jarvis, and Spinola Internal Medicine Associates-UPMC. Dmand AI links Louis Leff to 1 more medical group.
Does Louis E. Leff accept Medicare?
Yes. CMS data shows Louis Leff billed Medicare for 331 services in 2024, and Louis Leff accepts Medicare assignment.
Does Louis E. Leff offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Louis Leff as offering telehealth services.
What is Louis E. Leff's MIPS score?
Louis Leff's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Louis E. Leff see?
CMS counts 134 Medicare patients who saw Louis Leff in 2024, with an average age of 74.
What services does Louis E. Leff bill to Medicare?
In 2024, Louis Leff's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99223).
Where did Louis E. Leff go to medical school?
Louis Leff graduated from Perelman School of Med at the University of Pennsylvania in 1985.
What drugs does Louis E. Leff prescribe most?
In 2024 Medicare Part D data, Louis Leff's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
How long has Louis E. Leff been practicing?
Louis Leff graduated from medical school in 1985, 41 years ago.
Does Louis E. Leff do research?
Dmand AI links 1 publication to Louis Leff.
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