Therese Marie Lucietto-Sieradzki, M.D.
Family Medicine Physician · Belvidere, IL
Therese Marie Lucietto-Sieradzki, M.D. is a family medicine physician with a practice address in Belvidere, Illinois, and NPI 1699708636, issued on Jul 9, 2006. Check the license (Illinois 036102862, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Therese Marie Lucietto-Sieradzki
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036102862 IL
Self-reported in NPPES; status is on the state search - Practice location
- 205 Cadillac CT Ste 7, Belvidere, IL 61008
- Phone
- (815) 544-0087
- Enumerated
- Jul 9, 2006
- Record last updated
- Jun 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (815) 544-0088
- Medicaid ID
- 036102862 IL
- Medicare enrollment
- Enrolled (PECOS I20041019001296); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1998
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 205 Cadillac CT Ste 7
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Lyons, APNFamily Nurse Practitioner1568981561
Verify Therese Marie Lucietto-Sieradzki 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 036102862Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average family medicine physician in 2024
3,566 Medicare Part D claims for 329 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 167 claims were for opioids.
Most prescribed
- Cefuroxime189 claims
- Levothyroxine Sodium156 claims
- Prednisone88 claims
- Azithromycin79 claims
- Repatha Sureclick79 claims
- Liothyronine Sodium78 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: $1,804.99
102 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.
One hospital affiliation
- Saint Anthony Medical CenterLoves Park, IL · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Therese Marie Lucietto-Sieradzki among 6,215 family medicine physician records in Illinois
Therese Marie Lucietto-Sieradzki, 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
- Graduated1998 · median 2006 among the 3,714 with a school on file
- Record last updated2020 · 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).
20 family medicine physician records list a practice address in Belvidere
They are 20 of the 194 NPPES records with a practice address in Belvidere, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Belvidere → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shin Chen, MDBelvidere, IL 610081437139896
- Karen Englund, MDBelvidere, IL 610081407872591
- Stephanie Gorham, MDBelvidere, IL 610081023239258
- Neal Kellenberger, MDBelvidere, IL 610081427210319
- Mohammed Khan, MDBelvidere, IL 610081679703797
- Cassandra Lopez, MDBelvidere, IL 610081619125317
- Clayton Malaker, M.D.Belvidere, IL 610081144221961
- James Phoenix, MDBelvidere, IL 610081700922267
Common questions
What is Therese Marie Lucietto-Sieradzki, M.D.'s NPI number?
Therese Marie Lucietto-Sieradzki, M.D.'s National Provider Identifier (NPI) is 1699708636, issued on Jul 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Therese Marie Lucietto-Sieradzki, M.D. located?
The NPPES record lists a practice address at 205 Cadillac CT Ste 7, Belvidere, IL, 61008. Phone: (815) 544-0087. Providers update this record themselves, so call before visiting.
How can I verify Therese Marie Lucietto-Sieradzki, M.D.'s license?
NPPES lists Illinois license number 036102862, 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 Therese Marie Lucietto-Sieradzki, M.D. prescribe under Medicare Part D?
In 2024, Therese Marie Lucietto-Sieradzki, M.D. had 3,566 Medicare Part D claims for 329 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.