Dawn Sheryl Olynyk-Katan, FNP-C
Family Nurse Practitioner · Seguin, TX
Dawn Sheryl Olynyk-Katan, FNP-C is a family nurse practitioner with a practice address in Seguin, Texas, and NPI 1730673781, issued on Jun 21, 2018. Check the license (Texas AP137595, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dawn Sheryl Olynyk-Katan
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP137595 TX
Self-reported in NPPES; status is on the state search - Practice location
- 417 S King St, Seguin, TX 78155
- Phone
- (855) 876-7246
- Enumerated
- Jun 21, 2018
- Record last updated
- Nov 13, 2025
- Fax
- (855) 277-5070
- Medicare enrollment
- Enrolled (PECOS I20180921001905); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 21,242 in Texas → Look up another NPI →
Also registered at 417 S King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ryan Michaud, MDInterventional Pain Medicine Physician1801935895
Verify Dawn Sheryl Olynyk-Katan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license AP137595Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average family nurse practitioner in 2024
239 Medicare Part D claims for 89 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Gabapentin37 claims
- Methocarbamol24 claims
- Cyclobenzaprine Hcl16 claims
- Celecoxib13 claims
- Pregabalin11 claims
- Tizanidine Hcl11 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: $617.78
11 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 99,489 providers of this specialty with any payment received $650.95 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
- Central Texas Pain Center, PLLCSeguin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dawn Sheryl Olynyk-Katan among 21,242 family nurse practitioner records in Texas
Dawn Sheryl Olynyk-Katan, FNP-C is one of 21,242 family nurse practitioner records with a practice address in Texas. 75% 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 42% of them.
- NPI issued2018 · 42% of these records are older, 50% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2012 · median 2018 among the 11,286 with a school on file
- Record last updated2025 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 family nurse practitioner records list a practice address in Seguin
They are 15 of the 427 NPPES records with a practice address in Seguin, and 21,242 family nurse practitioner records in Texas.
All 21,242 in Texas → Every provider in Seguin → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Kirsten Adams, FNPSeguin, TX 781551629485511
- Holly Batterton, APNPSeguin, TX 781551114794377
- Jennifer Cirilo, FNP-CSeguin, TX 781551093487613
- Kendel Gonzalez, NPSeguin, TX 781551629767710
- Mary Juliar, APRN, FNP-CSeguin, TX 781551982084414
- Amanda Lacy, FNPSeguin, TX 781551255996104
- Tammy Littlefield, FNP-CSeguin, TX 781551811697873
- Samantha Sandersen, NPSeguin, TX 781551780454702
Common questions
What is Dawn Sheryl Olynyk-Katan, FNP-C's NPI number?
Dawn Sheryl Olynyk-Katan, FNP-C's National Provider Identifier (NPI) is 1730673781, issued on Jun 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Dawn Sheryl Olynyk-Katan, FNP-C located?
The NPPES record lists a practice address at 417 S King St, Seguin, TX, 78155. Phone: (855) 876-7246. Providers update this record themselves, so call before visiting.
How can I verify Dawn Sheryl Olynyk-Katan, FNP-C's license?
NPPES lists Texas license number AP137595, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Dawn Sheryl Olynyk-Katan, FNP-C prescribe under Medicare Part D?
In 2024, Dawn Sheryl Olynyk-Katan, FNP-C had 239 Medicare Part D claims for 89 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.