Trieneke Ann Kylstra, MD
Family Medicine Physician · Ukiah, CA
Trieneke Ann Kylstra, MD is a family medicine physician with a practice address in Ukiah, California, and NPI 1740243286, issued on Apr 7, 2006. Check the license (California AO65110, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Trieneke Ann Kylstra
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- AO65110 CA
Self-reported in NPPES; status is on the state search - Practice location
- 260 Hospital Dr, Ukiah, CA 95482
- Phone
- (707) 463-8000
- Enumerated
- Apr 7, 2006
- Record last updated
- Nov 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (707) 462-1111
- Medicare enrollment
- Enrolled (PECOS I20060123001041); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 260 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shakuntala BlomquistFamily Nurse Practitioner1114557345
- Theron Chan, M.D.Family Medicine Physician1952385833
- Lynne Coen, M.D.Family Medicine Physician1851375711
- Cara Eberhardt, MDAddiction Medicine (Family Medicine) Physician1174151450
- Samuel Goldberg, M.D.Pediatrics Physician1821072653
Verify Trieneke Ann Kylstra in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license AO65110Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average family medicine physician in 2024
3,651 Medicare Part D claims for 417 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 100 claims were for opioids.
Most prescribed
- Levothyroxine Sodium259 claims
- Atorvastatin Calcium230 claims
- Amlodipine Besylate156 claims
- Losartan Potassium115 claims
- Metoprolol Succinate110 claims
- Lisinopril109 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
- Providence Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Trieneke Ann Kylstra among 17,133 family medicine physician records in California
Trieneke Ann Kylstra, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1996 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
33 family medicine physician records list a practice address in Ukiah
They are 33 of the 1,439 NPPES records with a practice address in Ukiah, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Ukiah → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thomas Billings, M.D.Ukiah, CA 954821326043852
- Theron Chan, M.D.Ukiah, CA 954821952385833
- Graham Chelius, M.D.Ukiah, CA 954821063459311
- Peter Cho, MDUkiah, CA 954821619968948
- Lynne Coen, M.D.Ukiah, CA 954821851375711
- Howard Coren, M.D.Ukiah, CA 954821730124215
- Helen Hauk, M.D.Ukiah, CA 954821457338394
- Mark McVay, DOUkiah, CA 954821841255056
Common questions
What is Trieneke Ann Kylstra, MD's NPI number?
Trieneke Ann Kylstra, MD's National Provider Identifier (NPI) is 1740243286, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Trieneke Ann Kylstra, MD located?
The NPPES record lists a practice address at 260 Hospital Dr, Ukiah, CA, 95482. Phone: (707) 463-8000. Providers update this record themselves, so call before visiting.
How can I verify Trieneke Ann Kylstra, MD's license?
NPPES lists California license number AO65110, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Trieneke Ann Kylstra, MD prescribe under Medicare Part D?
In 2024, Trieneke Ann Kylstra, MD had 3,651 Medicare Part D claims for 417 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.