Sigita Kristina Poskocimas, DO
Obstetrics & Gynecology Physician · Naperville, IL
Sigita Kristina Poskocimas, DO is an obstetrics & gynecology physician with a practice address in Naperville, Illinois, and NPI 1821650813, issued on Jul 1, 2019. Check the license (Illinois 036-166278, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Sigita Kristina Poskocimas
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 036-166278 IL
5151014067 MI
Self-reported in NPPES; status is on the state search - Practice location
- 120 Spalding Dr Ste 309, Naperville, IL 60540
- Phone
- (630) 432-6890
- Enumerated
- Jul 1, 2019
- Record last updated
- Sep 15, 2023
- Fax
- (630) 718-2650
- Medicare enrollment
- Enrolled (PECOS I20230830003232); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 120 Spalding Dr Ste 309
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Judith Bressler, M.D.Obstetrics & Gynecology Physician1194726547
- Bridget Frangella, MDObstetrics & Gynecology Physician1972578375
- Melinda George, MDObstetrics & Gynecology Physician1619469400
- Scott Kagan, MDObstetrics & Gynecology Physician1346216595
- Masue Li, MDHospitalist Physician1730287376
- Joseph Martin, MDHospitalist Physician1912974262
Verify Sigita Kristina Poskocimas 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 036-166278Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
21 Medicare Part D claims for 12 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $123.45
6 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Dupage Medical Group LtdNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sigita Kristina Poskocimas among 2,062 obstetrics & gynecology physician records in Illinois
Sigita Kristina Poskocimas, DO is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2019 · median 2006 among the 1,168 with a school on file
- Record last updated2023 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Naperville → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Linda AndersonNaperville, IL 605401528058195
- Andrew Badowski, MDNaperville, IL 605401104849272
- Vimi Bajaj, MD FACOGNaperville, IL 605401164488763
- Judith Bressler, M.D.Naperville, IL 605401194726547
- Michele Carney, MDNaperville, IL 605401750371340
- Michael Feingold, MDNaperville, IL 605401053366567
- Bridget Frangella, MDNaperville, IL 605401972578375
- John Josupait, MDNaperville, IL 605401972594018
Common questions
What is Sigita Kristina Poskocimas, DO's NPI number?
Sigita Kristina Poskocimas, DO's National Provider Identifier (NPI) is 1821650813, issued on Jul 1, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sigita Kristina Poskocimas, DO located?
The NPPES record lists a practice address at 120 Spalding Dr Ste 309, Naperville, IL, 60540. Phone: (630) 432-6890. Providers update this record themselves, so call before visiting.
How can I verify Sigita Kristina Poskocimas, DO's license?
NPPES lists Illinois license number 036-166278, 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 Sigita Kristina Poskocimas, DO prescribe under Medicare Part D?
In 2024, Sigita Kristina Poskocimas, DO had 21 Medicare Part D claims for 12 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.