Constance A. Marks, M.D.
Specialist · Joliet, IL
Constance A. Marks, M.D. is a specialist with a practice address in Joliet, Illinois, and NPI 1831398445, issued on Jul 13, 2007. Check the license (Illinois 036079703, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Constance A. Marks
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036079703 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1541 Riverboat Center Dr, Joliet, IL 60431
- Phone
- (815) 741-3825
- Enumerated
- Jul 13, 2007
- Record last updated
- Nov 30, 2023
- Fax
- (815) 741-3263
- Medicare enrollment
- Enrolled (PECOS I20070829000149); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →
Also registered at 1541 Riverboat Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Salinna Adams, FNPFamily Nurse Practitioner1346061223
- Gregory Andros, M.D.Urology Physician1962481143
- Elizabeth Bean, PA-CPhysician Assistant1013248574
- Thomas Burns, M.D.Urology Physician1003896903
- Luke Cho, MDUrology Physician1669400933
- Denys Crater, FNP-BCFamily Nurse Practitioner1679200760
Verify Constance A. Marks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036079703Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average specialist in 2024
1,342 Medicare Part D claims for 439 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 39 claims were for opioids.
Most prescribed
- Solifenacin Succinate325 claims
- Myrbetriq187 claims
- Tamsulosin Hcl136 claims
- Finasteride88 claims
- Ciprofloxacin Hcl62 claims
- Sulfamethoxazole-Trimethoprim53 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,657.64
71 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Uropartners LLCMorris, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Constance A. Marks among 1,154 specialist records in Illinois
Constance A. Marks, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 37% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2001 · median 1988 among the 127 with a school on file
- Record last updated2023 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Illinois
There are 1,154 specialist records in Illinois.
All 1,154 in Illinois → Every provider in Joliet → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Kim BradleyJoliet, IL 604311245419464
- Cindy Boyer, D.N.Homewood, IL 604301467578658
- Aidas BuzelisHomewood, IL 604301871971929
- Grant Chavin, MDHomewood, IL 604301548284730
- Onyekwelu ChidumeHomewood, IL 604301295970085
- Nour Malak, D.N.Homewood, IL 604301104942309
- Venkata Uppuluri, M.D.Homewood, IL 604301730276742
- Marsie Hass, MDHazel Crest, IL 604291053481911
Common questions
What is Constance A. Marks, M.D.'s NPI number?
Constance A. Marks, M.D.'s National Provider Identifier (NPI) is 1831398445, issued on Jul 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Constance A. Marks, M.D. located?
The NPPES record lists a practice address at 1541 Riverboat Center Dr, Joliet, IL, 60431. Phone: (815) 741-3825. Providers update this record themselves, so call before visiting.
How can I verify Constance A. Marks, M.D.'s license?
NPPES lists Illinois license number 036079703, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Constance A. Marks, M.D. prescribe under Medicare Part D?
In 2024, Constance A. Marks, M.D. had 1,342 Medicare Part D claims for 439 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Constance A. Marks, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.