NPPES file of Aug 9, 2026

Phyllis Jo Henderson, MD

Addiction Medicine (Psychiatry & Neurology) Physician · Yakima, WA

Phyllis Jo Henderson, MD is an addiction medicine (psychiatry & neurology) physician with a practice address in Yakima, Washington, and NPI 1487863999, issued on May 21, 2007. Check the license (Washington 26126, as entered in NPPES) on the Washington Medical Commission; 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
1487863999
Name
Phyllis Jo Henderson
Credential
MD
Primary taxonomy
Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
License numbers
26126 WA
WA26126 WA
Self-reported in NPPES; status is on the state search
Practice location
402 S 4TH Ave, Yakima, WA 98902
Phone
(808) 575-4084
Enumerated
May 21, 2007
Record last updated
Jan 4, 2024
Fax
(509) 575-4234
Medicare enrollment
Enrolled (PECOS I20040727001625); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1988
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.
Download card Updates feed

Also registered at 402 S 4TH Ave

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

  1. Isis Acevedo GonzalezClinical Social Worker1184216392
  2. Roger AckermanAddiction (Substance Use Disorder) Counselor1366125551
  3. Brenda Acosta, ARNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1871369728
  4. Paulina AlcalaCase Manager/Care Coordinator1053936203
  5. Myra AlcarazPeer Specialist1386220036
  6. Jasmine AldacoSocial Worker1194479410

Verify Phyllis Jo Henderson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license 26126
    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
Open the Washington 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

71% more Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024

1,485 Medicare Part D claims for 62 beneficiaries, against an average of 870 among the 264 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Phyllis Henderson1,485
  2. Specialty average870

Most prescribed

  1. Quetiapine Fumarate174 claims
  2. Duloxetine Hcl149 claims
  3. Prazosin Hcl106 claims
  4. Aripiprazole95 claims
  5. Trazodone Hcl93 claims
  6. Sertraline Hcl62 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: $83.22

5 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 142 providers of this specialty with any payment received $4,513.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Phyllis Henderson$83.22
  2. Specialty average$4,513.66

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

  1. Comprehensive HealthcareYakima, WA

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

Addiction Medicine (Psychiatry & Neurology) Physician providers in Washington

There are 7 addiction medicine (psychiatry & neurology) physician records in Washington.

The 6 addiction medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Emily Walker, MDVancouver, WA 986861639790827
  2. Laura Moss, M.D.Spokane, WA 992041023068780
  3. Seema Basnett, MDSeattle, WA 981681386883726
  4. Charles Meredith, MDSeattle, WA 981081336257112
  5. Ray Hsiao, MDSeattle, WA 981051790896728
  6. Marc Pellicciaro, M.D.Bellevue, WA 980051962575951

Common questions

What is Phyllis Jo Henderson, MD's NPI number?

Phyllis Jo Henderson, MD's National Provider Identifier (NPI) is 1487863999, issued on May 21, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Phyllis Jo Henderson, MD located?

The NPPES record lists a practice address at 402 S 4TH Ave, Yakima, WA, 98902. Phone: (808) 575-4084. Providers update this record themselves, so call before visiting.

How can I verify Phyllis Jo Henderson, MD's license?

NPPES lists Washington license number 26126, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Phyllis Jo Henderson, MD prescribe under Medicare Part D?

In 2024, Phyllis Jo Henderson, MD had 1,485 Medicare Part D claims for 62 beneficiaries; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. 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.