Anti-HIV AgentsAntiretroviral Therapy, Highly ActiveAppointments and Schedules
Dr. Harold A. Kessler, MD
NPI1730140534PAC ID3678578762
- Medicare services, 2021
- 21
- Part D claims, 2024
- 232
- Publications
- 8
- Hospital affiliations
- 1
- Industry payments
- $489
- Practice address
- 1653 West Congress Parkway, Chicago, IL 60612
- Practice phone
- Call (312) 942-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kessler'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.
Dr. Harold A. Kessler is an infectious disease specialist in Chicago, Illinois
Dr. Kessler practices at Rush University Medical Center in Chicago, Illinois, part of Rush System for Health.
Dr. Kessler's NPI, 1730140534, was assigned on March 31, 2006. Dr. Kessler graduated from Rush Medical College of Rush University in 1974. Dr. Kessler holds Illinois license 036051260.
NPI and contact details
- NPI
- 1730140534NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678578762
- NPI enumeration date
- March 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (312) 942-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harold A. Kessler practices at Rush University Medical Center in Chicago, Illinois
Dr. Kessler's primary practice is Rush University Medical Center, at 1653 West Congress Parkway, Chicago, IL 60612 in Cook County. The practice phone is (312) 942-5000.
- Rush University Medical Center1653 West Congress Parkway, Chicago, IL 60612 · Cook CountyPhone(312) 942-5000
Source: Dmand AI Affiliation Data
Dr. Harold A. Kessler is affiliated with 2 sites of care and 2 medical groups
Dr. Kessler's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. The medical group on file is Rush University Internists. Dmand AI also links Dr. Kessler to 1 more group practice or clinic and 1 medical group, each named with a free account.
Rush University Internists1 group practice or clinicName with a free account1 medical groupName with a free account
See all 4 affiliations for Dr. KesslerSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Harold A. Kessler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kessler practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Rush University Medical Center | 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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Dr. Harold A. Kessler is one of 400 infectious disease specialists in Illinois
Infectious disease is Dr. Kessler's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Kessler is licensed in Illinois.
Specialties and state licenses
- Infectious disease, IllinoisPrimary
Infectious disease specialists near Dr. Kessler
Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.
400infectious disease specialists in Illinois148infectious disease specialists in Chicago20infectious disease specialists at Rush University Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Harold A. Kessler billed Medicare for 21 services in 2021
CMS data shows 21 Medicare services from Dr. Kessler across 1 procedure code in 2021, all of them office visits. Medicare paid $1,399 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202121
Paid by Medicare$1,399
Procedure codes1
Dr. Kessler's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 282021: 2125%
Dr. Kessler compared with the Illinois median for infectious disease specialists, 2021
- Dr. Kessler
- Illinois median
- Medicare services
- 21vs 44095% below
- Part D claims
- 172vs 19512% below
Medians across 383 infectious disease specialists in Illinois with Dmand AI profiles that report each measure.
Dr. Kessler's most billed Medicare procedure codes, 2021
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. Kessler?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kessler and other infectious disease specialists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Harold A. Kessler's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Kessler's median patient age at 67, with 21% women.
Dr. Kessler's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women21%
- Men79%
Source: Dmand AI Patient Panel Data
Dr. Harold A. Kessler wrote 232 Medicare Part D claims in 2024
In 2024, Dr. Kessler wrote 232 Medicare Part D claims for 18 patients. 23% of them were for generic drugs. CMS names the drug for 172 of them, across 6 drugs with 11 or more claims each, at $561,267 in total drug cost. In 2023, CMS named 200 claims across 7 drugs.
Part D claims, 2024232
Drugs named by CMS6
Total drug cost$561,267
Part D patients18
Dr. Kessler's Part D claims by kind of drug, 2024
- Generic53 claims23%
- Brand-name179 claims77%
Dr. Kessler'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: 2002024: 17214%
Drugs named by CMS: 6 in 2024, 7 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
How Dr. Harold A. Kessler takes part in Medicare
Dr. Kessler 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)
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Dr. Harold A. Kessler has 8 publications on record
Dmand AI links 8 papers to Dr. Kessler, published from 2010 to 2018. The most frequent topics are Prisons, Antiretroviral Therapy, Highly Active and Continuity of Patient Care. Dr. Kessler has published most often in J Contin Educ Health Prof. Dr. Kessler's most frequent co-authors are Chad Jeremy Zawitz, MD, Thana Khawcharoenporn, MD and Mariam S. Aziz, MD.
Papers8
Years published2010 to 2018
Dr. Kessler's papers by year, 2010 to 2018
Topics Dr. Kessler writes about most
- Prisons
- Antiretroviral Therapy, Highly Active
- Continuity of Patient Care
- Education, Medical, Continuing
- HIV Infections
- Learning
- Motivation
- Patient Acceptance of Health Care
Dr. Kessler's most frequent co-authors
- Chad Jeremy Zawitz, MD3 shared papers
- Thana Khawcharoenporn, MD2 shared papers
- Mariam S. Aziz, MD1 shared paper
Recent publications by Dr. Kessler
J Correct Health Care
Antiretroviral Therapy, Highly ActiveComorbidityContinuity of Patient Care
J Contin Educ Health Prof
Education, Medical, ContinuingLearningMotivation
See who Dr. Kessler researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kessler works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Harold A. Kessler received $489 in industry payments from 2019 to 2022
CMS Open Payments shows 3 general payments to Dr. Kessler from 2 drug and device companies from 2019 to 2022. Travel and lodging make up the largest share, 62% of the total. Roche Molecular Systems, Inc. paid the most, $301.
General payments to Dr. Kessler by program year, 2019 to 2022
General payments to Dr. Kessler by kind, 2019 to 2022
$489in total
- Travel and lodging$30162%
- Food and beverage$18738%
Companies that paid Dr. Kessler the most, 2019 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Harold A. Kessler graduated from Rush Medical College of Rush University
Dr. Kessler graduated from Rush Medical College of Rush University in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Harold A. Kessler'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 Data |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Harold A. Kessler
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. Harold A. Kessler's NPI number?
Dr. Harold A. Kessler's NPI number is 1730140534. It was assigned on March 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Harold A. Kessler?
Dr. Harold A. Kessler is an infectious disease specialist in Chicago, Illinois. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Harold A. Kessler practice?
Dr. Kessler practices at 1653 West Congress Parkway, Chicago, IL 60612. Dr. Kessler's primary practice is Rush University Medical Center in Chicago, Illinois, part of Rush System for Health. Dmand AI also links Dr. Kessler to 1 group practice or clinic and 1 medical group.
What is Dr. Harold A. Kessler's office phone number?
The practice phone on file for Dr. Kessler is (312) 942-5000.
What is Dr. Harold A. Kessler's medical license number?
Dr. Kessler holds Illinois license 036051260.
Which hospitals is Dr. Harold A. Kessler affiliated with?
Dr. Kessler practices at Rush University Medical Center in Chicago, Illinois.
What medical group is Dr. Harold A. Kessler part of?
Dr. Kessler is linked to Rush University Internists. Dmand AI links Dr. Kessler to 1 more medical group.
Does Dr. Harold A. Kessler accept Medicare?
Yes. CMS data shows Dr. Kessler billed Medicare for 21 services in 2021, and Dr. Kessler accepts Medicare assignment.
What services does Dr. Harold A. Kessler bill to Medicare?
In 2021, Dr. Kessler's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Harold A. Kessler go to medical school?
Dr. Kessler graduated from Rush Medical College of Rush University in 1974.
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What drugs does Dr. Harold A. Kessler prescribe most?
In 2024 Medicare Part D data, Dr. Kessler's most prescribed drugs by claims were Juluca, Dovato and Triumeq.
Has Dr. Harold A. Kessler received payments from drug or device companies?
CMS Open Payments shows $489 in general payments to Dr. Kessler from 2 companies from 2019 to 2022. The largest total came from Roche Molecular Systems, Inc.
How long has Dr. Harold A. Kessler been practicing?
Dr. Kessler graduated from medical school in 1974, 52 years ago.
Does Dr. Harold A. Kessler do research?
Dmand AI links 8 publications to Dr. Kessler, published from 2010 to 2018.
Who does Dr. Harold A. Kessler publish with?
Dr. Kessler's most frequent co-authors are Chad Jeremy Zawitz, MD (3 shared papers), Thana Khawcharoenporn, MD (2 shared papers) and Mariam S. Aziz, MD (1 shared paper).
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