Dr. Leonard Jefferson Harris Jr., MD

  • Germantown, TN
  • Hematologist and oncologist
NPI1518014307PAC ID9335236686
Medicare services, 2024
40,257
Medicare patients, 2024
573
Part D claims, 2024
971
Publications
6
MIPS score, 2024
90
Practice address
7714 Poplar Ave, Germantown, TN 38138
Practice phone
Call (901) 683-0055
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

West Cancer Center - East Campus

Germantown, Tennessee

See all 16 affiliations

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Dr. Leonard Jefferson Harris Jr. is a hematologist and oncologist in Germantown, Tennessee

Dr. Harris practices at West Cancer Center - East Campus in Germantown, Tennessee.

Dr. Harris' NPI, 1518014307, was assigned on January 4, 2007. Dr. Harris graduated from Medical College of Georgia in 2005. Dr. Harris holds Tennessee license 42470.

NPI and contact details
Medicare PAC ID
9335236686
NPI enumeration date
January 4, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(901) 683-0055
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
47
Medical school graduation
2005

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Leonard Jefferson Harris Jr. practices at West Cancer Center - East Campus in Germantown, Tennessee

Dr. Harris' primary practice is West Cancer Center - East Campus, at 7714 Poplar Ave, Germantown, TN 38138 in Shelby County. The practice phone is (901) 683-0055.

  • West Cancer Center - East Campus
    7714 Poplar Ave, Germantown, TN 38138 · Shelby CountyPhone(901) 683-0055

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Leonard Jefferson Harris Jr. is affiliated with 11 sites of care and 5 medical groups

Dr. Harris' primary practice is West Cancer Center - East Campus in Germantown, Tennessee. Dr. Harris is also affiliated with Methodist University Hospital. The medical group on file is Thomas M. Carr Md, P.C. Dmand AI also links Dr. Harris to 5 more hospitals, 4 group practices and clinics and 4 medical groups, each named with a free account.

See all 16 affiliations for Dr. Harris

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Leonard Jefferson Harris Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harris practices, 10 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
West Cancer Center - East CampusAvailable with a free account
+10 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Leonard Jefferson Harris Jr. is one of 271 hematologists and oncologists in Tennessee

Hematology and oncology is Dr. Harris' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Harris is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Harris' licenses on file in 2 states: Tennessee and Mississippi.

Specialties and state licenses

  • Hematology and oncology, TennesseePrimaryLicense 42470 · 2007 to 2026 · taxonomy 207RH0003X
  • Mississippi license2023 to 2026

Clinical focus

Dmand AI lists chronic anemia and neutropenia among the conditions Dr. Harris treats.

Hematologists and oncologists near Dr. Harris

Counts of hematologists and oncologists 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. Leonard Jefferson Harris Jr. billed Medicare for 40,257 services in 2024

CMS data shows 40,257 Medicare services from Dr. Harris across 53 procedure codes in 2024, for 573 Medicare patients. Medicare paid $676,427 for them.

Medicare services, 202440,257
Medicare patients573
Paid by Medicare$676,427
Procedure codes53

Dr. Harris' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 02024: 37,212
Tests and treatments
2023: 02024: 1,102
Lab and pathology
2023: 252024: 8943476%
Office and hospital visits
2023: 1822024: 651258%
Other services
2023: 02024: 231
Surgery
2023: 332024: 167406%

Where Dr. Harris' Medicare services took place, 2024

  • In an office39,99199%
  • In a facility2661%

Dr. Harris compared with the Tennessee median for hematologists and oncologists, 2024

  • Dr. Harris
  • Tennessee median
Medicare services
40,257vs 81849.2 times
Medicare patients
573vs 287100% above
Part D claims
688vs 50835% above

Medians across 259 hematologists and oncologists in Tennessee with Dmand AI profiles that report each measure.

Dr. Harris' 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.

See all procedures by Dr. Harris

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Leonard Jefferson Harris Jr. treated 573 Medicare patients in 2024, average age 74

CMS counts 573 Medicare patients who saw Dr. Harris in 2024. The largest group is 65 to 74, with 235 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.22, 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. Harris' median patient age at 66, with 61% women.

Medicare patients, 2024573
Average age74
Average risk score2.22
Also on Medicaid14%

Dr. Harris' Medicare patients by age, 2024

Dr. Harris' Medicare patients by sex, 2024

  • Women33058%
  • Men24342%

Chronic conditions among Dr. Harris' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Cancer48%
  4. Arthritis47%
  5. Chronic kidney disease41%
  6. Ischemic heart disease38%
  7. Diabetes36%
  8. Anxiety30%

Share of Medicare patients with each condition. A patient can have several.

Dr. Harris' 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

  • Women61%
  • Men39%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Leonard Jefferson Harris Jr. wrote 971 Medicare Part D claims in 2024

In 2024, Dr. Harris wrote 971 Medicare Part D claims for 159 patients. 73% of them were for generic drugs. CMS names the drug for 688 of them, across 29 drugs with 11 or more claims each, at $1,633,048 in total drug cost. In 2023, CMS named 26 claims across 2 drugs.

Part D claims, 2024971
Drugs named by CMS29
Total drug cost$1.6M
Part D patients159

Dr. Harris' Part D claims by kind of drug, 2024

  • Generic713 claims73%
  • Brand-name and other258 claims27%

Dr. Harris' 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. Harris' Part D claims, 2024

  • Opioids9%89 of 971 claims
  • Antibiotics10%97 of 971 claims
  • Antipsychotics, patients 65 and over2%23 of 971 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: 262024: 6882546%

Drugs named by CMS: 29 in 2024, 2 in 2023.

See all prescribing by Dr. Harris

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. Leonard Jefferson Harris Jr. scored 90 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Harris for performance year 2024. Dr. Harris accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Harris as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Harris' MIPS scores, performance year 2024

  • 90of 100Final score
  • 83.2of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 77of 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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Dr. Leonard Jefferson Harris Jr. has 6 publications on record

Dmand AI links 6 papers to Dr. Harris, published from 2011 to 2020. The most frequent topics are Lymphoma, Large B-Cell, Diffuse. Dr. Harris' most frequent co-authors are Alaa Altahan, Michael Ray Brown, MD, PhD and Anuj K. Dalal, MD.

Papers6
Years published2011 to 2020

Dr. Harris' papers by year, 2011 to 2020

Topics Dr. Harris writes about most

  • Lymphoma, Large B-Cell, Diffuse

Dr. Harris' most frequent co-authors

Recent publications by Dr. Harris

See all 6 publications and co-authors

See who Dr. Harris researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Harris works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Leonard Jefferson Harris Jr. received $9,467 in industry payments from 2019 to 2025

CMS Open Payments shows 192 general payments to Dr. Harris from 45 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 52% of the total. Janssen Pharmaceuticals, Inc paid the most, $2,110.

General payments to Dr. Harris by program year, 2019 to 2025

General payments to Dr. Harris by kind, 2019 to 2025

$9.5Kin total
  • Food and beverage$4,91052%
  • Consulting fees$3,94442%
  • Education$6136%

Companies that paid Dr. Harris the most, 2019 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Harris

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Leonard Jefferson Harris Jr. graduated from Medical College of Georgia

Dr. Harris graduated from Medical College of Georgia in 2005. Dr. Harris is a member of AOA, AAP, ACP, ASCO, ASH and Society of Hematologic Oncology.

  1. Medical schoolMedical College of Georgia
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine
  4. Board certified in medical oncologyAmerican Board of Internal Medicine
  5. Board certified in pediatricsAmerican Board of Pediatrics

Source: Dmand AI Professional Profile Data

Dr. Leonard Jefferson Harris Jr. accepts plans from 21 insurance carriers

Dr. Harris is in network with 21 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.

Plan types Dr. Harris accepts, by number of carriers

  1. PPO14
  2. Medicare10
  3. HMO8
  4. POS7
  5. EPO4
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Leonard Jefferson Harris Jr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Leonard Jefferson Harris 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. Leonard Jefferson Harris Jr.'s NPI number?

Dr. Leonard Jefferson Harris Jr.'s NPI number is 1518014307. It was assigned on January 4, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Leonard Jefferson Harris Jr.?

Dr. Leonard Jefferson Harris Jr. is a hematologist and oncologist in Germantown, Tennessee. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Leonard Jefferson Harris Jr. practice?

Dr. Harris practices at 7714 Poplar Ave, Germantown, TN 38138. Dr. Harris' primary practice is West Cancer Center - East Campus in Germantown, Tennessee. Dmand AI also links Dr. Harris to 5 hospitals, 4 group practices and clinics and 4 medical groups.

What is Dr. Leonard Jefferson Harris Jr.'s office phone number?

The practice phone on file for Dr. Harris is (901) 683-0055.

What is Dr. Leonard Jefferson Harris Jr.'s medical license number?

Dr. Harris holds Tennessee license 42470, one of the licenses on file in 2 states.

Which states has Dr. Leonard Jefferson Harris Jr. been licensed in?

Dmand AI has state licenses on file for Dr. Harris in Tennessee (2007 to 2026) and Mississippi (2023 to 2026).

Which hospitals is Dr. Leonard Jefferson Harris Jr. affiliated with?

Dr. Harris is affiliated with Methodist University Hospital. Dmand AI links Dr. Harris to 5 more hospitals.

What medical group is Dr. Leonard Jefferson Harris Jr. part of?

Dr. Harris is linked to Thomas M. Carr Md, P.C. Dmand AI links Dr. Harris to 4 more medical groups.

Does Dr. Leonard Jefferson Harris Jr. accept Medicare?

Yes. CMS data shows Dr. Harris billed Medicare for 40,257 services in 2024, and Dr. Harris accepts Medicare assignment.

Does Dr. Leonard Jefferson Harris Jr. offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Harris as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Leonard Jefferson Harris Jr.'s MIPS score?

Dr. Harris' MIPS final score for performance year 2024 is 90 out of 100.

How many Medicare patients does Dr. Leonard Jefferson Harris Jr. see?

CMS counts 573 Medicare patients who saw Dr. Harris in 2024, with an average age of 74.

Is Dr. Leonard Jefferson Harris Jr. board certified?

Yes. Dr. Harris is board certified in hematology by the American Board of Internal Medicine.

What services does Dr. Leonard Jefferson Harris Jr. bill to Medicare?

In 2024, Dr. Harris' most billed Medicare services were injected or infused drug (J1439), injected or infused drug (J9271) and injected or infused drug (J0881).

Where did Dr. Leonard Jefferson Harris Jr. go to medical school?

Dr. Harris graduated from Medical College of Georgia in 2005.

What drugs does Dr. Leonard Jefferson Harris Jr. prescribe most?

In 2024 Medicare Part D data, Dr. Harris' most prescribed drugs by claims were Eliquis, Dexamethasone and Hydrocodone-Acetaminophen.

Has Dr. Leonard Jefferson Harris Jr. received payments from drug or device companies?

CMS Open Payments shows $9,467 in general payments to Dr. Harris from 45 companies from 2019 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Leonard Jefferson Harris Jr. been practicing?

Dr. Harris graduated from medical school in 2005, 21 years ago.

Does Dr. Leonard Jefferson Harris Jr. do research?

Dmand AI links 6 publications to Dr. Harris, published from 2011 to 2020.

Who does Dr. Leonard Jefferson Harris Jr. publish with?

Dr. Harris' most frequent co-authors are Alaa Altahan (1 shared paper), Michael Ray Brown, MD, PhD (1 shared paper) and Anuj K. Dalal, MD (1 shared paper).

What insurance does Dr. Leonard Jefferson Harris Jr. accept?

Dr. Harris is in network with 21 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.

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