Thelma S. Marin, M.D.
Family Medicine Physician · Woodridge, IL
Thelma S. Marin, M.D. is a family medicine physician with a practice address in Woodridge, Illinois, and NPI 1588621601, issued on May 1, 2006. Check the license (Illinois 036089513, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Thelma S. Marin
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036089513 IL
Self-reported in NPPES; status is on the state search - Practice location
- 7530 Woodward Ave, Woodridge, IL 60517
- Phone
- (630) 910-1177
- Enumerated
- May 1, 2006
- Record last updated
- Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (630) 910-4157
- Medicare enrollment
- Enrolled (PECOS I20050218000125); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 7530 Woodward Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lloyd Callaway, M.D.Adult Medicine Physician1942274725
- Harveen Chevula, PTPhysical Therapist1972207041
- Chandra Dachepalli, AUDSpecialist1821152372
- Rosalind Downing, M.D.Pediatrics Physician1043256217
- Vikram Gandhi, MDOrthopaedic Surgery Physician1265419097
Verify Thelma S. Marin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036089513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% fewer Medicare Part D claims than the average family medicine physician in 2024
1,863 Medicare Part D claims for 237 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Atorvastatin Calcium144 claims
- Amlodipine Besylate140 claims
- Metformin Hcl89 claims
- Losartan Potassium88 claims
- Levothyroxine Sodium81 claims
- Rosuvastatin Calcium66 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.
Industry payments in 2024: $251.18
12 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 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 2 group practices
- Dupage Medical Group LtdSchaumburg, IL
- Woodridge Clinic SCLombard, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thelma S. Marin among 6,215 family medicine physician records in Illinois
Thelma S. Marin, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1989 · median 2006 among the 3,714 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 family medicine physician records list a practice address in Woodridge
They are 21 of the 512 NPPES records with a practice address in Woodridge, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Woodridge → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sonali Bhatnagar, DOWoodridge, IL 605171790046860
- Tina Brueschke, M.D.Woodridge, IL 605171417062829
- Anthony Fernandez, M.D.Woodridge, IL 605171083796239
- Sarah Kidder, DOWoodridge, IL 605171629204961
- Jung Kim, M.D.Woodridge, IL 605171700978210
- Jaime Martinez, MDWoodridge, IL 605171962713909
- Jonathan Meek, M.D.Woodridge, IL 605171366416380
- Firouzeh Naghdi, DOWoodridge, IL 605171568426849
Common questions
What is Thelma S. Marin, M.D.'s NPI number?
Thelma S. Marin, M.D.'s National Provider Identifier (NPI) is 1588621601, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thelma S. Marin, M.D. located?
The NPPES record lists a practice address at 7530 Woodward Ave, Woodridge, IL, 60517. Phone: (630) 910-1177. Providers update this record themselves, so call before visiting.
How can I verify Thelma S. Marin, M.D.'s license?
NPPES lists Illinois license number 036089513, 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 Thelma S. Marin, M.D. prescribe under Medicare Part D?
In 2024, Thelma S. Marin, M.D. had 1,863 Medicare Part D claims for 237 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.