NPPES file of Aug 9, 2026

Alexander Richard Bolton, D.O.

Internal Medicine Physician · Belleville, IL

Alexander Richard Bolton, D.O. is an internal medicine physician with a practice address in Belleville, Illinois, and NPI 1639581127, issued on Jun 2, 2014. Check the license (Illinois 036163598, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639581127
Name
Alexander Richard Bolton
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
036163598 IL
036.163598 IL
Self-reported in NPPES; status is on the state search
Practice location
4600 Memorial Dr Ste W1, Belleville, IL 62226
Phone
(618) 233-3066
Enumerated
Jun 2, 2014
Record last updated
Feb 12, 2024
Fax
(618) 233-3066
Medicare enrollment
Enrolled (PECOS I20231110001778); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2014
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4600 Memorial Dr Ste W1

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrew Berdy, MDCardiovascular Disease Physician1821425067
  2. Elisha Boyd, FNPNurse Practitioner1649895038
  3. Michael Brown, MDCardiovascular Disease Physician1386817468
  4. Sunil Darbari, MDCardiovascular Disease Physician1932197290
  5. Michael Fleissner, MDCardiovascular Disease Physician1942289459
  6. Sultan Hayat, MDCardiovascular Disease Physician1548248453

Verify Alexander Richard Bolton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036163598
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

170 Medicare Part D claims for 77 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Alexander Bolton170
  2. Specialty average3,176

Most prescribed

  1. Furosemide13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 99.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score95.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Pines Health ServicesCaribou, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexander Richard Bolton among 7,238 internal medicine physician records in Illinois

Alexander Richard Bolton, D.O. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 59% of them.

  • NPI issued2014 · 59% of these records are older, 39% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2014 · median 2003 among the 3,580 with a school on file
  • Record last updated2024 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 internal medicine physician records list a practice address in Belleville

They are 27 of the 1,404 NPPES records with a practice address in Belleville, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Charles Ampadu, MDSwansea, IL 622261962545269
  2. Michelle Burk, DOBelleville, IL 622261093817355
  3. Anne Cath, MDBelleville, IL 622261417937574
  4. Philip Chu, MDSwansea, IL 622261396797841
  5. Vibhu Dhawan, MDBelleville, IL 622261033315965
  6. Richard Fikes, DOBelleville, IL 622261235176686
  7. Kathleen Fournier, MDBelleville, IL 622261023088903
  8. Victoria Jansen, MDSwansea, IL 622261932191863

Common questions

What is Alexander Richard Bolton, D.O.'s NPI number?

Alexander Richard Bolton, D.O.'s National Provider Identifier (NPI) is 1639581127, issued on Jun 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Richard Bolton, D.O. located?

The NPPES record lists a practice address at 4600 Memorial Dr Ste W1, Belleville, IL, 62226. Phone: (618) 233-3066. Providers update this record themselves, so call before visiting.

How can I verify Alexander Richard Bolton, D.O.'s license?

NPPES lists Illinois license number 036163598, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander Richard Bolton, D.O. prescribe under Medicare Part D?

In 2024, Alexander Richard Bolton, D.O. had 170 Medicare Part D claims for 77 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Alexander Richard Bolton, D.O.'s MIPS final score?

The 2023 MIPS final score is 99.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.