Rachel Ellen Kaczynski, D.O.
Surgical Oncology Physician · San Antonio, TX
Rachel Ellen Kaczynski, D.O. is a surgical oncology physician with a practice address in San Antonio, Texas, and NPI 1487942736, issued on Jul 20, 2011. Check the license (Texas T2191, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Rachel Ellen Kaczynski
- Credential
- D.O.
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License numbers
- T2191 TX
267637 NY
34.014960 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2130 NE Loop 410 Ste 100, San Antonio, TX 78217
- Phone
- (210) 656-7177
- Enumerated
- Jul 20, 2011
- Record last updated
- Oct 7, 2022
- Fax
- (210) 656-3687
- Medicare enrollment
- Enrolled (PECOS I20220901001993); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 206 in Texas → Look up another NPI →
Also registered at 2130 NE Loop 410 Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Krishna Alluri, MDHematology & Oncology Physician1992908347
- Rebecca Clinton, LCSWSocial Worker1003054891
- Ethan Dubravsky, PA-CMedical Physician Assistant1487186508
- Timothy Dziuk, M.D.Radiation Oncology Physician1073551420
- Saranya Kodali, M.D.Hematology & Oncology Physician1669813630
- Regina Moreno, LCSWClinical Social Worker1174468409
Verify Rachel Ellen Kaczynski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license T2191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% more Medicare Part D claims than the average surgical oncology physician in 2024
161 Medicare Part D claims for 92 beneficiaries, against an average of 87 among the 1,237 providers of this specialty who prescribed in Part D. 71 claims were for opioids.
Most prescribed
- Tramadol Hcl66 claims
- Lidocaine-Prilocaine37 claims
- Celecoxib19 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.
The MIPS final score for 2023 (Medicare payment program): 89.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,862.76
5 payments; by number, the most common kind was food and beverage; the largest payer was Kub Technologies Inc. The 1,132 providers of this specialty with any payment received $4,224.74 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
- Texas Oncology PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rachel Ellen Kaczynski among 206 surgical oncology physician records in Texas
Rachel Ellen Kaczynski, D.O. is one of 206 surgical oncology physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 69% of them.
- NPI issued2011 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2011 · median 2005 among the 161 with a school on file
- Record last updated2022 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in Texas
There are 206 surgical oncology physician records in Texas.
All 206 in Texas → Every provider in San Antonio → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Morton Kahlenberg, MDSan Antonio, TX 782171649387713
- Dennis Rousseau, M.D./ PH.D.San Antonio, TX 782171801805239
- Carissia Calvo-Strube, M.D.San Antonio, TX 782291508209966
- Colin Court, MDSan Antonio, TX 782291669738308
- Thelma Hurd, MDSan Antonio, TX 782291295842359
- Ismail Jatoi, M.D.San Antonio, TX 782291083779532
- Caitlin McIntyreSan Antonio, TX 782291073932737
- Shawnn Nichols, M.D.San Antonio, TX 782291164412094
Common questions
What is Rachel Ellen Kaczynski, D.O.'s NPI number?
Rachel Ellen Kaczynski, D.O.'s National Provider Identifier (NPI) is 1487942736, issued on Jul 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Rachel Ellen Kaczynski, D.O. located?
The NPPES record lists a practice address at 2130 NE Loop 410 Ste 100, San Antonio, TX, 78217. Phone: (210) 656-7177. Providers update this record themselves, so call before visiting.
How can I verify Rachel Ellen Kaczynski, D.O.'s license?
NPPES lists Texas license number T2191, 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 Rachel Ellen Kaczynski, D.O. prescribe under Medicare Part D?
In 2024, Rachel Ellen Kaczynski, D.O. had 161 Medicare Part D claims for 92 beneficiaries; the average among surgical oncology physician prescribers was 87. Part D covers Medicare prescriptions only.
What is Rachel Ellen Kaczynski, D.O.'s MIPS final score?
The 2023 MIPS final score is 89.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.