Mary Katherine Longenecker
Behavior Analyst · Federal Way, WA
Mary Katherine Longenecker is a behavior analyst with a practice address in Federal Way, Washington, and NPI 1013360221, issued on Jul 22, 2016. Check the license with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mary Katherine Longenecker
- Primary taxonomy
- Behavior Analyst 103K00000X
- Practice location
- 31065 9TH Ave S, Federal Way, WA 98003
- Phone
- (253) 217-1289
- Enumerated
- Jul 22, 2016
- Record last updated
- Jul 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest behavior analyst records → All 2,978 in Washington → Look up another NPI →
Verify Mary Katherine Longenecker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mary Katherine Longenecker among 2,978 behavior analyst records in Washington
Mary Katherine Longenecker is one of 2,978 behavior analyst records with a practice address in Washington. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2016, is newer than 32% of them.
- NPI issued2016 · 32% of these records are older, 56% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2016 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103K00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Behavior Analyst providers in Washington
There are 2,978 behavior analyst records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,978 in Washington → Every provider in Federal Way → Behavior Analyst nationwide →
The 8 behavior analyst records with the nearest ZIP codes
- Darlene Bacelonia, MS, BCBA, LBAFederal Way, WA 980031437542396
- Amanpreet BainsFederal Way, WA 980031407556525
- Sarah Biesold, BCBAFederal Way, WA 980031013539519
- Courtney CarolusFederal Way, WA 980031669366134
- Christine Domschot, BCBA, LBAFederal Way, WA 980031679953681
- Diana SherstyukovaFederal Way, WA 980031427758739
- Malyun YusufFederal Way, WA 980031124773890
- Ali AliAuburn, WA 980021326817941
Common questions
What is Mary Katherine Longenecker's NPI number?
Mary Katherine Longenecker's National Provider Identifier (NPI) is 1013360221, issued on Jul 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mary Katherine Longenecker located?
The NPPES record lists a practice address at 31065 9TH Ave S, Federal Way, WA, 98003. Phone: (253) 217-1289. Providers update this record themselves, so call before visiting.
How can I verify Mary Katherine Longenecker's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity 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. 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.