Natalia Alina Szaflarski, D.O.
Internal Medicine Physician · South Holland, IL
Natalia Alina Szaflarski, D.O. is an internal medicine physician with a practice address in South Holland, Illinois, and NPI 1346683075, issued on Apr 11, 2013. Check the license (Illinois 036-139533, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Natalia Alina Szaflarski
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-139533 IL
Self-reported in NPPES; status is on the state search - Practice location
- 100 W 162ND St, South Holland, IL 60473
- Phone
- (312) 609-0300
- Enumerated
- Apr 11, 2013
- Record last updated
- Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160815002656); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 100 W 162ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Barclay, MDPediatrics Physician1144206145
- Chirayu Baxi, MDHospitalist Physician1326434994
Verify Natalia Alina Szaflarski 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 036-139533Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
252 Medicare Part D claims for 125 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Furosemide17 claims
- Gabapentin16 claims
- Hydrocodone-Acetaminophen15 claims
- Atorvastatin Calcium12 claims
- Pantoprazole Sodium12 claims
- Amlodipine Besylate11 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.
Bills Medicare through one group practice
- Advocate Health And Hospitals CorporationSouth Holland, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Natalia Alina Szaflarski among 7,238 internal medicine physician records in Illinois
Natalia Alina Szaflarski, D.O. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 57% of them.
- NPI issued2013 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2013 · median 2003 among the 3,580 with a school on file
- Record last updated2021 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in South Holland
They are 18 of the 323 NPPES records with a practice address in South Holland, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in South Holland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Girma Assefa, M.D.South Holland, IL 604731619904992
- Carlos Concepcion, M.D.South Holland, IL 604731194130302
- Kara Davis, MDSouth Holland, IL 604731417991449
- Michelle Harris, M.D.South Holland, IL 604731275553661
- Derek Melby, DOSouth Holland, IL 604731033266473
- Daniel Montalvo, M.D.South Holland, IL 604731437165594
- Lawrence Okafor, M.D.South Holland, IL 604731285649012
- Praveen Parvathala, M.D.South Holland, IL 604731861409971
Common questions
What is Natalia Alina Szaflarski, D.O.'s NPI number?
Natalia Alina Szaflarski, D.O.'s National Provider Identifier (NPI) is 1346683075, issued on Apr 11, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Natalia Alina Szaflarski, D.O. located?
The NPPES record lists a practice address at 100 W 162ND St, South Holland, IL, 60473. Phone: (312) 609-0300. Providers update this record themselves, so call before visiting.
How can I verify Natalia Alina Szaflarski, D.O.'s license?
NPPES lists Illinois license number 036-139533, 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 Natalia Alina Szaflarski, D.O. prescribe under Medicare Part D?
In 2024, Natalia Alina Szaflarski, D.O. had 252 Medicare Part D claims for 125 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.