NPPES file of Aug 9, 2026

Mary Joan Heffernan, ARNP

Nurse Practitioner · Bellevue, WA

Mary Joan Heffernan, ARNP is a nurse practitioner with a practice address in Bellevue, Washington, and NPI 1588896377, issued on Aug 13, 2009. Check the license (Washington AP60097092, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588896377
Name
Mary Joan Heffernan
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP60097092 WA
Self-reported in NPPES; status is on the state search
Practice location
1135 116TH Ave NE, Bellevue, WA 98004
Phone
(425) 467-3785
Enumerated
Aug 13, 2009
Record last updated
Aug 31, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(425) 635-6656
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 2,308 in Washington → Look up another NPI →

Also registered at 1135 116TH Ave NE

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

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  6. Shweta Baliga, MDInternal Medicine Physician1649224577

Verify Mary Joan Heffernan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license AP60097092    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 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.

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Mary Joan Heffernan among 2,308 nurse practitioner records in Washington

Mary Joan Heffernan, ARNP is one of 2,308 nurse practitioner records with a practice address in Washington. 72% 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 2009, is newer than 30% of them.

  • NPI issued2009 · 30% of these records are older, 67% newer
  • In a Medicare fileNo · 72% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2011 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Washington

There are 2,308 nurse practitioner records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,308 in Washington → Every provider in Bellevue → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Polly Gardner, ARNPBellevue, WA 980041992759617
  2. Marcia Gordon, ARNPBellevue, WA 980041518934199
  3. Mary Hall, ARNPBellevue, WA 980041942318480
  4. Kier Jordan-Keith, M.N., A.R.N.P.Bellevue, WA 980041104938398
  5. Kate KennedyBellevue, WA 980041245309442
  6. Joy KnoppBellevue, WA 980041245315050
  7. Debra Laurent, ARNPBellevue, WA 980041275568057
  8. Denise Ledoux, A.R.N.P.Bellevue, WA 980041568473379

Common questions

What is Mary Joan Heffernan, ARNP's NPI number?

Mary Joan Heffernan, ARNP's National Provider Identifier (NPI) is 1588896377, issued on Aug 13, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Mary Joan Heffernan, ARNP located?

The NPPES record lists a practice address at 1135 116TH Ave NE, Bellevue, WA, 98004. Phone: (425) 467-3785. Providers update this record themselves, so call before visiting.

How can I verify Mary Joan Heffernan, ARNP's license?

NPPES lists Washington license number AP60097092, as entered by the provider. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.