Michael James Henderson, FNP
Family Nurse Practitioner · Walla Walla, WA
Michael James Henderson, FNP is a family nurse practitioner with a practice address in Walla Walla, Washington, and NPI 1407340730, issued on Jun 20, 2018. Check the license (Washington AP60851799, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael James Henderson
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP60851799 WA
Self-reported in NPPES; status is on the state search - Practice location
- 380 Chase Ave, Walla Walla, WA 99362
- Phone
- (509) 897-3000
- Enumerated
- Jun 20, 2018
- Record last updated
- Jun 24, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180727000869); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 380 Chase Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Angela Bly, RNHome Health Registered Nurse1801624325
- Abigail BradleyPhysician Assistant1013785955
- Sarah CochellPhysical Therapy Assistant1528809282
Verify Michael James Henderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP60851799Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average family nurse practitioner in 2024
284 Medicare Part D claims for 230 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Cephalexin36 claims
- Prednisone27 claims
- Albuterol Sulfate Hfa26 claims
- Amoxicillin26 claims
- Amoxicillin-Clavulanate Potass25 claims
- Cefdinir20 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
- King County Public Hospital District NO 2Kirkland, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael James Henderson among 3,781 family nurse practitioner records in Washington
Michael James Henderson, FNP is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 57% of them.
- NPI issued2018 · 57% of these records are older, 38% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2017 · median 2018 among the 2,116 with a school on file
- Record last updated2021 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 family nurse practitioner records list a practice address in Walla Walla
They are 30 of the 1,276 NPPES records with a practice address in Walla Walla, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Walla Walla → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Eileen Bow, ARNP-FPWalla Walla, WA 993621962487132
- Jennifer Christenson, ARNPWalla Walla, WA 993621457336158
- Ellen Collette, A.R.N.P.Walla Walla, WA 993621760685424
- Elizabeth Eaton-Gamsby, R.N., F.N.P.Walla Walla, WA 993621720114366
- Susan Friesen, FNP, ARNPWalla Walla, WA 993621225208333
- Michael Frizelle, FNPWalla Walla, WA 993621699931493
- Paul Holce, ARNP-CWalla Walla, WA 993621225049992
- Laura Hollister-Meadows, FNP-BCWalla Walla, WA 993621477534972
Common questions
What is Michael James Henderson, FNP's NPI number?
Michael James Henderson, FNP's National Provider Identifier (NPI) is 1407340730, issued on Jun 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Michael James Henderson, FNP located?
The NPPES record lists a practice address at 380 Chase Ave, Walla Walla, WA, 99362. Phone: (509) 897-3000. Providers update this record themselves, so call before visiting.
How can I verify Michael James Henderson, FNP's license?
NPPES lists Washington license number AP60851799, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Michael James Henderson, FNP prescribe under Medicare Part D?
In 2024, Michael James Henderson, FNP had 284 Medicare Part D claims for 230 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.