Therese Lucietto-Sieradzki, M.D.
NPI 1699708636 · Family Medicine Physician · Belvidere, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Therese Lucietto-Sieradzki, M.D. is a Family Medicine Physician provider in Belvidere, IL (NPI 1699708636).
Provider details
- NPI number
- 1699708636
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036102862 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
263 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 189 | $116 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $81 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 35 | $164 |
Typical Medicare-allowed amounts for these services range $81–$164 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefuroxime Axetilbrand: Cefuroxime | 189 | 153 |
| Levothyroxine Sodium | 156 | 38 |
| Prednisone | 88 | 63 |
| Evolocumabbrand: Repatha Sureclick | 79 | 16 |
| Azithromycin | 79 | 61 |
| Liothyronine Sodium | 78 | 22 |
| Fluconazole | 77 | 57 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,805 across 102 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-09
- Last updated
- 2020-06-24
- Certified
- 2020-06-24
Frequently asked questions
- What is Therese Lucietto-Sieradzki's NPI number?
- Therese Lucietto-Sieradzki's National Provider Identifier (NPI) is 1699708636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Therese Lucietto-Sieradzki's specialty?
- Therese Lucietto-Sieradzki is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Therese Lucietto-Sieradzki located?
- Therese Lucietto-Sieradzki's practice location on file with NPPES is 205 Cadillac Ct Ste 7, Belvidere, IL 61008-1733.
- What is Therese Lucietto-Sieradzki's phone number?
- The practice phone number listed in the NPPES registry for Therese Lucietto-Sieradzki is (815) 544-0087.
- Does Therese Lucietto-Sieradzki accept Medicare?
- Therese Lucietto-Sieradzki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Therese Lucietto-Sieradzki's NPI active?
- Yes — Therese Lucietto-Sieradzki's NPI (1699708636) is active in the NPPES registry as of the last update on 2020-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.