Doctor profile · Federal record

Dr. Phyllis Henderson, MD

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

  • NPI 1487863999
  • Accepts Medicare
  • 38 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
402 S 4Th Ave
Yakima, WA 989023546
(808) 575-4084
fax (509) 575-4234
Mailing address
20980 State Route 410
Naches, WA 989379173

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
January 4, 2024
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
2084A0401X — NUCC code
State licenses (2)
Washington #26126 · Washington #WA26126

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487863999. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
30
Distinct HCPCS
1
Medicare allowed
$3,700
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 30 13 $123

In context: peer comparison

Among 1 peers in Yakima Addiction Medicine (Psychiatry & Neurology) Physician, average services per provider: 30. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$83
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Teva Pharmaceuticals USA, INC. 2 $32.12
Janssen Pharmaceuticals, INC 1 $18.93
Supernus Pharmaceuticals, INC. 1 $18.19
Eisai INC. 1 $13.98

By nature of payment

Food and Beverage
$83

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
905
Patients
74
Total drug cost
$18,925
Drug Type Claims Patients Total cost
Quetiapine Fumarate Generic 158 20 $4,285
Duloxetine Hcl Generic 111 13 $2,148
Trazodone Hcl Generic 91 16 $949
Aripiprazole Generic 77 12 $1,825
Prazosin Hcl Generic 66 13 $2,126
Mirtazapine Generic 57 0 $1,179
Sertraline Hcl Generic 50 0 $646
Divalproex Sodium ER (Divalproex Sodium) Brand 45 0 $1,708
Lamotrigine Generic 45 0 $437
Bupropion Hcl SR (Bupropion Hcl) Brand 44 0 $511

Frequently asked questions

Auto-generated from federal data
What is Dr. Phyllis Henderson's medical specialty?
Dr. Phyllis Henderson practices Addiction Medicine (Psychiatry & Neurology) Physician in Yakima, WA.
Where does Dr. Phyllis Henderson practice?
Dr. Phyllis Henderson practices at 402 S 4Th Ave, Yakima, WA 989023546. Office phone: 8085754084.
What is Dr. Phyllis Henderson's NPI?
Dr. Phyllis Henderson's National Provider Identifier (NPI) is 1487863999, issued by NPPES.
Does Dr. Phyllis Henderson accept Medicare assignment?
Yes. Dr. Phyllis Henderson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Phyllis Henderson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.