James Joseph Jacowski, ARNP
Family Nurse Practitioner · Oak Harbor, WA
James Joseph Jacowski, ARNP is a family nurse practitioner with a practice address in Oak Harbor, Washington, and NPI 1730942103, issued on Jan 30, 2024. Check the license (Washington AP61506523, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Joseph Jacowski
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP61506523 WA
Self-reported in NPPES; status is on the state search - Practice location
- 275 SE Cabot Dr Ste B101, Oak Harbor, WA 98277
- Phone
- (360) 675-6648
- Enumerated
- Jan 30, 2024
- Record last updated
- Jan 30, 2024
- Fax
- (360) 679-9310
- Medicare enrollment
- Enrolled (PECOS I20240307004208); 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 275 SE Cabot Dr Ste B101
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Joseph Jacowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61506523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average family nurse practitioner in 2024
550 Medicare Part D claims for 70 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin23 claims
- Metoprolol Succinate21 claims
- Lisinopril20 claims
- Levothyroxine Sodium19 claims
- Amlodipine Besylate18 claims
- Xarelto16 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 3 group practices
- Select Outpatient Services IncGlenview, IL
- Select Rehabilitation, LLCGlenview, IL
- Whidbey Island Public Hospital DistrictOak Harbor, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Joseph Jacowski among 3,781 family nurse practitioner records in Washington
James Joseph Jacowski, ARNP 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 2024, is newer than 90% of them.
- NPI issued2024 · 90% of these records are older, 5% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2023 · median 2018 among the 2,116 with a school on file
- Record last updated2024 · 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).
16 family nurse practitioner records list a practice address in Oak Harbor
They are 16 of the 985 NPPES records with a practice address in Oak Harbor, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Oak Harbor → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Erin Aas, ARNPOak Harbor, WA 982771972566206
- Amy Epp, FNP-COak Harbor, WA 982771669986550
- Annette FlyOak Harbor, WA 982771134480056
- Heidi Graf, ARNPOak Harbor, WA 982771376543397
- Elizabeth Harris, FNPOak Harbor, WA 982771700221504
- Alleigh Henson, FNP-COak Harbor, WA 982771982413225
- Larayne Olson, ARNPOak Harbor, WA 982771376592824
- Sarah Owen, ARNPOak Harbor, WA 982771154842680
Common questions
What is James Joseph Jacowski, ARNP's NPI number?
James Joseph Jacowski, ARNP's National Provider Identifier (NPI) is 1730942103, issued on Jan 30, 2024. An NPI identifies a provider in billing; it is not a license.
Where is James Joseph Jacowski, ARNP located?
The NPPES record lists a practice address at 275 SE Cabot Dr Ste B101, Oak Harbor, WA, 98277. Phone: (360) 675-6648. Providers update this record themselves, so call before visiting.
How can I verify James Joseph Jacowski, ARNP's license?
NPPES lists Washington license number AP61506523, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does James Joseph Jacowski, ARNP prescribe under Medicare Part D?
In 2024, James Joseph Jacowski, ARNP had 550 Medicare Part D claims for 70 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.