Dr. Chester Earl Harrison Jr., MD

  • Alton, IL
  • Diagnostic radiologist
NPI1518134402PAC ID2668612987
Medicare services, 2024
5,381
Medicare patients, 2024
4,236
Publications
3
Hospital affiliations
5
Medical groups
4
Practice address
One Memorial Drive, Alton, IL 62002
Practice phone
Call (314) 286-2227
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Alton Memorial Hospital

Hospital · Alton, Illinois

See all 9 affiliations

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Dr. Chester Earl Harrison Jr. is a diagnostic radiologist in Alton, Illinois

Dr. Harrison practices at Alton Memorial Hospital in Alton, Illinois, part of BJC Health.

Dr. Harrison's NPI, 1518134402, was assigned on May 11, 2008. Dr. Harrison graduated from Rush Medical College of Rush University in 2007. Dr. Harrison holds Illinois license 036132159.

NPI and contact details
Medicare PAC ID
2668612987
NPI enumeration date
May 11, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(314) 286-2227
Professional email
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Personal email
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Mobile number
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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. Chester Earl Harrison Jr. practices at 2 locations in Alton, Illinois

Dr. Harrison's primary practice is Alton Memorial Hospital, at One Memorial Drive, Alton, IL 62002 in Madison County. The practice phone is (314) 286-2227. Dr. Harrison also practices at Alton Memorial Hospital, 1 Memorial Dr, Alton, IL 62002.

  • Alton Memorial HospitalPrimary
    One Memorial Drive, Alton, IL 62002 · Madison CountyPhone(314) 286-2227
  • Alton Memorial Hospital
    1 Memorial Dr, Alton, IL 62002 · Madison CountyPhone(618) 463-7311

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

Dr. Chester Earl Harrison Jr. is affiliated with 5 sites of care and 4 medical groups

Dr. Harrison's primary practice is Alton Memorial Hospital in Alton, Illinois, part of BJC Health. Dr. Harrison is also affiliated with OSF Saint Anthony's Health Center. The medical group on file is WashU Medicine Physicians. Dmand AI also links Dr. Harrison to 3 more hospitals and 3 medical groups, each named with a free account.

See all 9 affiliations for Dr. Harrison

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

Dmand AI tracks the EHR system at Dr. Chester Earl Harrison Jr.'s practice

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

EHR by site
SiteEHR vendor and product
Alton Memorial HospitalAvailable with a free account
+4 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Chester Earl Harrison Jr. is one of 1,336 diagnostic radiologists in Illinois

Diagnostic radiology is Dr. Harrison's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dmand AI has Dr. Harrison's licenses on file in 3 states: Illinois, Indiana and Missouri.

Specialties and state licenses

  • Diagnostic radiology, IllinoisPrimaryLicense 036132159 · taxonomy 2085R0202X
  • Indiana licenseLicense 11013944A
  • Missouri licenseLicense 2013008887

Diagnostic radiologists near Dr. Harrison

Counts of diagnostic radiologists 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. Chester Earl Harrison Jr. billed Medicare for 5,381 services in 2024

CMS data shows 5,381 Medicare services from Dr. Harrison across 56 procedure codes in 2024, for 4,236 Medicare patients. Medicare paid $170,645 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20245,381
Medicare patients4,236
Paid by Medicare$170,645
Procedure codes56

Dr. Harrison's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 5,8082024: 5,13912%
Tests and treatments
2023: 4852024: 24250%

Dr. Harrison compared with the Illinois median for diagnostic radiologists, 2024

  • Dr. Harrison
  • Illinois median
Medicare services
5,381vs 2,5752.1 times
Medicare patients
4,236vs 1,8362.3 times

Medians across 1,261 diagnostic radiologists in Illinois with Dmand AI profiles that report each measure.

Dr. Harrison'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.

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

Dr. Chester Earl Harrison Jr. treated 4,236 Medicare patients in 2024, average age 74

CMS counts 4,236 Medicare patients who saw Dr. Harrison in 2024. The largest group is 65 to 74, with 1,726 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.70, 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. Harrison's median patient age at 69, with 59% women.

Medicare patients, 20244,236
Average age74
Average risk score1.70
Also on Medicaid21%

Dr. Harrison's Medicare patients by age, 2024

Dr. Harrison's Medicare patients by sex, 2024

  • Women2,37256%
  • Men1,86444%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis60%
  4. Ischemic heart disease44%
  5. Diabetes37%
  6. Anxiety34%
  7. COPD34%
  8. Chronic kidney disease34%

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

Dr. Harrison's patients across all payers

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

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women59%
  • Men41%

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

How Dr. Chester Earl Harrison Jr. takes part in Medicare

Dr. Harrison 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. Chester Earl Harrison Jr. has 3 publications on record

Dmand AI links 3 papers to Dr. Harrison in 2012. The most frequent topics are Tomography, X-Ray Computed. Dr. Harrison's most frequent co-authors are Bruce J. Barron, MD, MHA, David Charlton Brandon, MD and Nicholas Adam Plaxton, MD.

Papers3

Topics Dr. Harrison writes about most

  • Tomography, X-Ray Computed

Dr. Harrison's most frequent co-authors

Recent publications by Dr. Harrison

See all 3 publications and co-authors

See who Dr. Harrison researches with

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

How network discovery works

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

Dr. Chester Earl Harrison Jr. graduated from Rush Medical College of Rush University

Dr. Harrison graduated from Rush Medical College of Rush University in 2007.

  1. Medical schoolRush Medical College of Rush University

Source: Dmand AI Professional Profile Data

Sources for Dr. Chester Earl Harrison 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 Affiliation DataDmand AI Practice 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Chester Earl Harrison 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. Chester Earl Harrison Jr.'s NPI number?

Dr. Chester Earl Harrison Jr.'s NPI number is 1518134402. It was assigned on May 11, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Chester Earl Harrison Jr.?

Dr. Chester Earl Harrison Jr. is a diagnostic radiologist in Alton, Illinois. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).

Where does Dr. Chester Earl Harrison Jr. practice?

Dr. Harrison practices at One Memorial Drive, Alton, IL 62002. Dr. Harrison also practices at 1 Memorial Dr, Alton, IL 62002. Dr. Harrison's primary practice is Alton Memorial Hospital in Alton, Illinois, part of BJC Health. Dmand AI also links Dr. Harrison to 3 hospitals and 3 medical groups.

What is Dr. Chester Earl Harrison Jr.'s office phone number?

The practice phone on file for Dr. Harrison is (314) 286-2227.

What is Dr. Chester Earl Harrison Jr.'s medical license number?

Dr. Harrison holds Illinois license 036132159, one of the licenses on file in 3 states.

Which states has Dr. Chester Earl Harrison Jr. been licensed in?

Dmand AI has state licenses on file for Dr. Harrison in Illinois, Indiana and Missouri.

Which hospitals is Dr. Chester Earl Harrison Jr. affiliated with?

Dr. Harrison practices at Alton Memorial Hospital in Alton, Illinois. Dr. Harrison is also affiliated with OSF Saint Anthony's Health Center. Dmand AI links Dr. Harrison to 3 more hospitals.

What medical group is Dr. Chester Earl Harrison Jr. part of?

Dr. Harrison is linked to WashU Medicine Physicians. Dmand AI links Dr. Harrison to 3 more medical groups.

Does Dr. Chester Earl Harrison Jr. accept Medicare?

Yes. CMS data shows Dr. Harrison billed Medicare for 5,381 services in 2024, and Dr. Harrison accepts Medicare assignment.

How many Medicare patients does Dr. Chester Earl Harrison Jr. see?

CMS counts 4,236 Medicare patients who saw Dr. Harrison in 2024, with an average age of 74.

Show 5 more questionsShow fewer questions

What services does Dr. Chester Earl Harrison Jr. bill to Medicare?

In 2024, Dr. Harrison's most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (70450) and diagnostic imaging (71046).

Where did Dr. Chester Earl Harrison Jr. go to medical school?

Dr. Harrison graduated from Rush Medical College of Rush University in 2007.

How long has Dr. Chester Earl Harrison Jr. been practicing?

Dr. Harrison graduated from medical school in 2007, 19 years ago.

Does Dr. Chester Earl Harrison Jr. do research?

Dmand AI links 3 publications to Dr. Harrison.

Who does Dr. Chester Earl Harrison Jr. publish with?

Dr. Harrison's most frequent co-authors are Bruce J. Barron, MD, MHA (1 shared paper), David Charlton Brandon, MD (1 shared paper) and Nicholas Adam Plaxton, MD (1 shared paper).

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