Provider Profile
Margaret M. Hennessey, FNP
Unclaimed ProfileAbout Margaret Hennessey
Margaret M. Hennessey, FNP is a nurse practitioner based in Olympia, WA. Margaret is also listed as specializing in nurse practitioner — family. According to Medicare claims data, Margaret cared for 246 Medicare patients across 476 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit. The provider's National Provider Identifier (NPI) is 1225328248.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (564) 669-5150
- Email not available
Practice Locations
404 YAUGER WAY SW STE 100
Olympia, WA 98502
1740 Cooks Hill Rd
Centralia, WA 98531
Procedures Most Often Billed to Medicare
476 services · 246 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
243 | More often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
154 | More often than most peers in Nurse Practitioner |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
41 | As often as other peers in Nurse Practitioner |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
38 | As often as other peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other nurse practitioners in Olympia 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Margaret M. Hennessey specialize in?
Margaret M. Hennessey is a nurse practitioner in Olympia, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Margaret M. Hennessey located?
Margaret M. Hennessey is listed at 404 Yauger Way Sw Ste 100, Olympia, WA 98502. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Margaret M. Hennessey's phone number?
The number on file is (564) 669-5150. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Margaret M. Hennessey's NPI number?
Margaret M. Hennessey's National Provider Identifier is 1225328248. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Margaret M. Hennessey train?
Margaret M. Hennessey attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Margaret M. Hennessey been practicing?
Margaret M. Hennessey has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What does Margaret M. Hennessey do most often?
According to Medicare billing data, Margaret M. Hennessey the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Margaret M. Hennessey confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Margaret M. Hennessey. If this is you, claiming it is free.
Guide.md
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