Dr. Alexander James Lietz, MD

  • Herrin, IL
  • Infectious disease specialist
NPI1790244713PAC ID2264813831
Medicare services, 2024
229
Medicare patients, 2024
109
Part D claims, 2024
80
MIPS score, 2024
82
Hospital affiliations
4
Practice address
201 S 14th St, Herrin, IL 62948
Practice phone
Call (618) 942-2171
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

SIH Herrin Hospital

Hospital · Herrin, Illinois

See all 7 affiliations

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Dr. Alexander James Lietz is an infectious disease specialist in Herrin, Illinois

Dr. Lietz practices at SIH Herrin Hospital in Herrin, Illinois, part of Southern Illinois Healthcare.

Dr. Lietz's NPI, 1790244713, was assigned on March 19, 2019. Dr. Lietz graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2019. Dr. Lietz holds Illinois license 036170520.

NPI and contact details
Medicare PAC ID
2264813831
NPI enumeration date
March 19, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(618) 942-2171
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
33
Medical school graduation
2019

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

Dr. Alexander James Lietz practices at SIH Herrin Hospital in Herrin, Illinois

Dr. Lietz's primary practice is SIH Herrin Hospital, at 201 S 14th St, Herrin, IL 62948 in Williamson County. The practice phone is (618) 942-2171.

  • SIH Herrin Hospital
    201 S 14th St, Herrin, IL 62948 · Williamson CountyPhone(618) 942-2171

Source: Dmand AI Affiliation Data

Dr. Alexander James Lietz is affiliated with 5 sites of care and 2 medical groups

Dr. Lietz's primary practice is SIH Herrin Hospital in Herrin, Illinois, part of Southern Illinois Healthcare. Dr. Lietz is also affiliated with SIH Memorial Hospital of Carbondale. The medical group on file is 24 On Physicians, PC. Dmand AI also links Dr. Lietz to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Lietz

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Alexander James Lietz's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lietz practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
SIH Herrin HospitalAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Alexander James Lietz is one of 400 infectious disease specialists in Illinois

Infectious disease is Dr. Lietz's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Lietz is licensed in Illinois.

Specialties and state licenses

  • Infectious disease, IllinoisPrimaryLicense 036170520 · taxonomy 207RI0200X

Infectious disease specialists near Dr. Lietz

Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.

400infectious disease specialists in Illinois
2infectious disease specialists in Herrin

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Alexander James Lietz billed Medicare for 229 services in 2024

CMS data shows 229 Medicare services from Dr. Lietz across 4 procedure codes in 2024, for 109 Medicare patients. Medicare paid $22,206 for them.

Medicare services, 2024229
Medicare patients109
Paid by Medicare$22,206
Procedure codes4

Dr. Lietz's Medicare services by type, 2024

  1. Office and hospital visits203
  2. Other services26

Where Dr. Lietz's Medicare services took place, 2024

  • In an office3817%
  • In a facility19183%

Dr. Lietz compared with the Illinois median for infectious disease specialists, 2024

  • Dr. Lietz
  • Illinois median
Medicare services
229vs 44048% below
Medicare patients
109vs 21048% below
Part D claims
24vs 19588% below

Medians across 383 infectious disease specialists in Illinois with Dmand AI profiles that report each measure.

Dr. Lietz'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.

See all procedures by Dr. Lietz

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

Dr. Alexander James Lietz treated 109 Medicare patients in 2024, average age 70

CMS counts 109 Medicare patients who saw Dr. Lietz in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 48% are also on Medicaid. Their average risk score is 2.74, 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. Lietz's median patient age at 65, with 40% women.

Medicare patients, 2024109
Average age70
Average risk score2.74
Also on Medicaid48%

Dr. Lietz's Medicare patients by age, 2024

Dr. Lietz's Medicare patients by sex, 2024

  • Women4844%
  • Men6156%

Chronic conditions among Dr. Lietz's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis73%
  4. Diabetes63%
  5. Anxiety57%
  6. Chronic kidney disease53%
  7. Mood disorders53%
  8. Depression51%

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

Dr. Lietz's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women40%
  • Men60%

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

Dr. Alexander James Lietz wrote 80 Medicare Part D claims in 2024

In 2024, Dr. Lietz wrote 80 Medicare Part D claims for 23 patients. 57% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $92,811 in total drug cost. In 2022, CMS named 42 claims across 3 drugs.

Part D claims, 202480
Drugs named by CMS2
Total drug cost$92,811
Part D patients23

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

  • Generic46 claims57%
  • Brand-name34 claims43%

Dr. Lietz'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. Lietz's Part D claims, 2024

  • Antibiotics49%39 of 80 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, 2022 to 2024

  • 2022
  • 2024
Claims for drugs CMS names
2022: 422024: 2443%

Drugs named by CMS: 2 in 2024, 3 in 2022.

See all prescribing by Dr. Lietz

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. Alexander James Lietz scored 82 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Lietz for performance year 2024, reported as part of a group. Dr. Lietz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lietz as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Lietz's MIPS scores, performance year 2024

  • 82of 100Final score
  • 55.9of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 72of 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. Alexander James Lietz received $6,706 in industry payments from 2024 to 2025

CMS Open Payments shows 45 general payments to Dr. Lietz from 8 drug and device companies from 2024 to 2025. Speaker and faculty fees make up the largest share, 67% of the total. Abbvie Inc. paid the most, $6,218.

General payments to Dr. Lietz by program year, 2024 to 2025

General payments to Dr. Lietz by kind, 2024 to 2025

$6.7Kin total
  • Speaker and faculty fees$4,50067%
  • Food and beverage$1,20518%
  • Travel and lodging$1,00115%

Companies that paid Dr. Lietz the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Lietz

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

Dr. Alexander James Lietz graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)

Dr. Lietz graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2019.

  1. Medical schoolUniversity of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)

Source: Dmand AI Professional Profile Data

Sources for Dr. Alexander James Lietz'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Alexander James Lietz

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. Alexander James Lietz's NPI number?

Dr. Alexander James Lietz's NPI number is 1790244713. It was assigned on March 19, 2019, and it is active in the NPI Registry.

What kind of doctor is Dr. Alexander James Lietz?

Dr. Alexander James Lietz is an infectious disease specialist in Herrin, Illinois. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Alexander James Lietz practice?

Dr. Lietz practices at 201 S 14th St, Herrin, IL 62948. Dr. Lietz's primary practice is SIH Herrin Hospital in Herrin, Illinois, part of Southern Illinois Healthcare. Dmand AI also links Dr. Lietz to 2 hospitals, 1 group practice or clinic and 1 medical group.

What is Dr. Alexander James Lietz's office phone number?

The practice phone on file for Dr. Lietz is (618) 942-2171.

What is Dr. Alexander James Lietz's medical license number?

Dr. Lietz holds Illinois license 036170520.

Which hospitals is Dr. Alexander James Lietz affiliated with?

Dr. Lietz practices at SIH Herrin Hospital in Herrin, Illinois. Dr. Lietz is also affiliated with SIH Memorial Hospital of Carbondale. Dmand AI links Dr. Lietz to 2 more hospitals.

What medical group is Dr. Alexander James Lietz part of?

Dr. Lietz is linked to 24 On Physicians, PC. Dmand AI links Dr. Lietz to 1 more medical group.

Does Dr. Alexander James Lietz accept Medicare?

Yes. CMS data shows Dr. Lietz billed Medicare for 229 services in 2024, and Dr. Lietz accepts Medicare assignment.

Does Dr. Alexander James Lietz offer telehealth?

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

What is Dr. Alexander James Lietz's MIPS score?

Dr. Lietz's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.

Show 6 more questionsShow fewer questions

How many Medicare patients does Dr. Alexander James Lietz see?

CMS counts 109 Medicare patients who saw Dr. Lietz in 2024, with an average age of 70.

What services does Dr. Alexander James Lietz bill to Medicare?

In 2024, Dr. Lietz's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and medicare service (G2211).

Where did Dr. Alexander James Lietz go to medical school?

Dr. Lietz graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2019.

What drugs does Dr. Alexander James Lietz prescribe most?

In 2024 Medicare Part D data, Dr. Lietz's most prescribed drugs by claims were Juluca and Biktarvy.

Has Dr. Alexander James Lietz received payments from drug or device companies?

CMS Open Payments shows $6,706 in general payments to Dr. Lietz from 8 companies from 2024 to 2025. The largest total came from Abbvie Inc.

How long has Dr. Alexander James Lietz been practicing?

Dr. Lietz graduated from medical school in 2019, 7 years ago.

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