NPPES file of Aug 9, 2026

Trisha Diane Overvaag

Psychiatric/Mental Health Nurse Practitioner · Phoenix, AZ

Trisha Diane Overvaag is a psychiatric/mental health nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1215546155, issued on Jul 27, 2020. Check the license (Arizona 244751, as entered in NPPES) with the Arizona 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
1215546155
Name
Trisha Diane Overvaag
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
244751 AZ
Self-reported in NPPES; status is on the state search
Practice location
610 E Baseline RD Ste 5, Phoenix, AZ 85042
Phone
(602) 230-7373
Enumerated
Jul 27, 2020
Record last updated
Dec 12, 2023
Fax
(602) 441-5836
Medicare enrollment
Enrolled (PECOS I20210505002577); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 610 E Baseline RD Ste 5

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ilona Alisudjana, LACCounselor1811691959
  2. Anthony Barrera, LMSWSocial Worker1861325573
  3. Desaray Brown, LMSWSocial Worker1912830522
  4. Angela Burks, LCSWClinical Social Worker1053034132
  5. Mark Callesen, M.D.Psychiatry Physician1457461956
  6. Jamie Crumley, PMHNPPsychiatric/Mental Health Nurse Practitioner1629532387

Verify Trisha Diane Overvaag in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 244751
    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 Arizona license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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13% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

784 Medicare Part D claims for 53 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Trisha Overvaag784
  2. Specialty average906

Most prescribed

  1. Quetiapine Fumarate70 claims
  2. Lamotrigine52 claims
  3. Gabapentin45 claims
  4. Trazodone Hcl43 claims
  5. Lorazepam35 claims
  6. Sertraline Hcl30 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: $87.61

4 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Trisha Overvaag$87.61
  2. Specialty average$1,027.77

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Southwest Behavioral Health Services IncPhoenix, AZ
  2. Spectrum Healthcare Group IncCottonwood, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Trisha Diane Overvaag among 1,887 psychiatric/mental health nurse practitioner records in Arizona

Trisha Diane Overvaag is one of 1,887 psychiatric/mental health nurse practitioner records with a practice address in Arizona. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 44% of them.

  • NPI issued2020 · 44% of these records are older, 47% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2020 · median 2020 among the 1,079 with a school on file
  • Record last updated2023 · 23% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

548 psychiatric/mental health nurse practitioner records list a practice address in Phoenix

They are 548 of the 31,399 NPPES records with a practice address in Phoenix, and 1,887 psychiatric/mental health nurse practitioner records in Arizona.

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

  1. Meghan Baker, PMHNPPhoenix, AZ 850421124764402
  2. Jamie Crumley, PMHNPPhoenix, AZ 850421629532387
  3. Tina EldrigePhoenix, AZ 850421629746409
  4. Jeanette Ellison, PMHNP-CPhoenix, AZ 850421437030616
  5. Luis Fong, PMHNPPhoenix, AZ 850421598259467
  6. Preston Frank, NPPhoenix, AZ 850421720704851
  7. Adam Geno, MSN, PMHNP-BCPhoenix, AZ 850421386037729
  8. Baljinder Kaur, FNP- BC, PMHNP- BCPhoenix, AZ 850421255716783

Common questions

What is Trisha Diane Overvaag's NPI number?

Trisha Diane Overvaag's National Provider Identifier (NPI) is 1215546155, issued on Jul 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Trisha Diane Overvaag located?

The NPPES record lists a practice address at 610 E Baseline RD Ste 5, Phoenix, AZ, 85042. Phone: (602) 230-7373. Providers update this record themselves, so call before visiting.

How can I verify Trisha Diane Overvaag's license?

NPPES lists Arizona license number 244751, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Trisha Diane Overvaag prescribe under Medicare Part D?

In 2024, Trisha Diane Overvaag had 784 Medicare Part D claims for 53 beneficiaries; 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.

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.