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- 4779 Point Fosdick Dr Ste 500, Gig Harbor, WA 98335
About Michael Grennan
Michael D. Grennan is a physician assistant practicing in Gig Harbor, WA. Medicare claims data shows Michael provided 409 services to 408 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b. This provider record is associated with NPI 1669829933.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (253) 530-8460
- Email not available
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Practice Locations
4779 POINT FOSDICK DR STE 500
Gig Harbor, WA 98335
Procedures Most Often Billed to Medicare
409 services · 408 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
21 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
187 | More often than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
91 | More often than most peers in Physician Assistant |
| Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b | Lab test | 87636 |
45 | More often than most peers in Physician Assistant |
| Automated urinalysis test | Lab test | 81003 |
28 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
26 | As often as other peers in Physician Assistant |
| Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique | Lab test | 87651 |
11 | Less often than most peers in Physician Assistant |
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 physician assistants in Gig Harbor 8
Same specialty, same city.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in WA who bill this service to Medicare most often.
Common questions
What kind of doctor is Michael D. Grennan?
Michael D. Grennan is a physician assistant in Gig Harbor, WA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Michael D. Grennan's address?
Michael D. Grennan is listed at 4779 Point Fosdick Dr Ste 500, Gig Harbor, WA 98335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Michael D. Grennan?
The number on file is (253) 530-8460. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Michael D. Grennan?
Michael D. Grennan's National Provider Identifier is 1669829933. 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
How much experience does Michael D. Grennan have?
Michael D. Grennan has 10+ years experience. Registered with an NPI since 2016. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Michael D. Grennan perform?
According to Medicare billing data, Michael D. Grennan provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Michael D. Grennan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Michael D. Grennan. If this is you, claiming it is free.
Guide.md
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