Karolina Natalia Dziadkowiec, MD
Gastroenterology Physician · San Antonio, TX
Karolina Natalia Dziadkowiec, MD is a gastroenterology physician with a practice address in San Antonio, Texas, and NPI 1194229716, issued on Mar 19, 2018. Check the license (Texas U9900, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karolina Natalia Dziadkowiec
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- U9900 TX
Self-reported in NPPES; status is on the state search - Practice location
- 903 W Martin St # MS 49-2, San Antonio, TX 78207
- Phone
- (201) 358-9887
- Enumerated
- Mar 19, 2018
- Record last updated
- Oct 28, 2025
- Medicare enrollment
- Enrolled (PECOS I20240626004285); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →
Also registered at 903 W Martin St # MS 49-2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karolina Natalia Dziadkowiec in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U9900Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average gastroenterology physician in 2024
53 Medicare Part D claims for 16 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Omeprazole19 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: $2,052.09
27 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- Community Medicine AssociatesSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karolina Natalia Dziadkowiec among 1,478 gastroenterology physician records in Texas
Karolina Natalia Dziadkowiec, MD is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 91% of them.
- NPI issued2018 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2017 · median 2003 among the 1,175 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Texas
There are 1,478 gastroenterology physician records in Texas.
All 1,478 in Texas → Every provider in San Antonio → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Hopethe Baker, M.D.San Antonio, TX 782071174793483
- Juan Echavarria, M.D.San Antonio, TX 782071669629242
- Ricardo Hernandez, M.D.San Antonio, TX 782071710971817
- Sameer Datta Kandhi, MDSan Antonio, TX 782071275187817
- Farah Ladak, M.D.San Antonio, TX 782071558724948
- Alexis Pavle, MDSan Antonio, TX 782071720498363
- Randy Wright, MDSan Antonio, TX 782071205032554
- Jeff Bullock, M.D.San Antonio, TX 782121528062288
Common questions
What is Karolina Natalia Dziadkowiec, MD's NPI number?
Karolina Natalia Dziadkowiec, MD's National Provider Identifier (NPI) is 1194229716, issued on Mar 19, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Karolina Natalia Dziadkowiec, MD located?
The NPPES record lists a practice address at 903 W Martin St # MS 49-2, San Antonio, TX, 78207. Phone: (201) 358-9887. Providers update this record themselves, so call before visiting.
How can I verify Karolina Natalia Dziadkowiec, MD's license?
NPPES lists Texas license number U9900, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karolina Natalia Dziadkowiec, MD prescribe under Medicare Part D?
In 2024, Karolina Natalia Dziadkowiec, MD had 53 Medicare Part D claims for 16 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.