NPPES file of Aug 9, 2026

Karen Triandafyllis, NP

Psychiatric/Mental Health Nurse Practitioner · San Francisco, CA

Karen Triandafyllis, NP is a psychiatric/mental health nurse practitioner with a practice address in San Francisco, California, and NPI 1659599983, issued on Apr 23, 2007. Check the license (California NP 18093, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659599983
Name
Karen Triandafyllis
Credential
NP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
NP 18093 CA
401013 NY
Self-reported in NPPES; status is on the state search
Practice location
995 Potrero Ave, Ward 93, San Francisco, CA 94110
Phone
(628) 206-6522
Enumerated
Apr 23, 2007
Record last updated
Oct 9, 2025
Fax
(628) 206-4153
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →

Verify Karen Triandafyllis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NP 18093    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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77% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

208 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Karen Triandafyllis208
  2. Specialty average906

Most prescribed

  1. Bupropion Xl31 claims
  2. Aripiprazole29 claims
  3. Prazosin Hcl25 claims
  4. Mirtazapine19 claims
  5. Risperidone18 claims
  6. Atomoxetine Hcl13 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.

Karen Triandafyllis among 4,226 psychiatric/mental health nurse practitioner records in California

Karen Triandafyllis, NP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 4% of them.

  • NPI issued2007 · 4% of these records are older, 93% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · 46% of these records are
  • Record last updated2025 · 16% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in California

There are 4,226 psychiatric/mental health nurse practitioner records in California.

All 4,226 in California → Every provider in San Francisco → Psychiatric/Mental Health Nurse Practitioner nationwide →

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Sheryn Amondi, NP PMHNPSan Francisco, CA 941101609796192
  2. Colleen Carney, MSN, RN, PMHNPSan Francisco, CA 941101851605612
  3. Paulo Dos Santos, PMHNPSan Francisco, CA 941101679123806
  4. Janet Hines, NPSan Francisco, CA 941101487771788
  5. Genesis JavaherianSan Francisco, CA 941101306407473
  6. Brooke Jensen, NP, RNSan Francisco, CA 941101306604772
  7. Elena Levin, MSN, PMHNP-BCSan Francisco, CA 941101740119288
  8. Levis Owens, NP MSNSan Francisco, CA 941101104045426

Common questions

What is Karen Triandafyllis, NP's NPI number?

Karen Triandafyllis, NP's National Provider Identifier (NPI) is 1659599983, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Karen Triandafyllis, NP located?

The NPPES record lists a practice address at 995 Potrero Ave, Ward 93, San Francisco, CA, 94110. Phone: (628) 206-6522. Providers update this record themselves, so call before visiting.

How can I verify Karen Triandafyllis, NP's license?

NPPES lists California license number NP 18093, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Karen Triandafyllis, NP prescribe under Medicare Part D?

In 2024, Karen Triandafyllis, NP had 208 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.