Provider Profile
Marissa Williams, PA-C
Unclaimed ProfileAbout Marissa Williams
Listed in the NPI registry as a physician assistant, Marissa Williams, PA-C practices in Zephyrhills, FL. According to Medicare claims data, 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.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (813) 355-4914
- Email not available
Practice Locations
7213 GREEN SLOPE DR
Zephyrhills, FL 33541
Procedures Most Often Billed to Medicare
17 services · 17 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 |
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 at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other physician assistants in Zephyrhills 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Marissa Williams specialize in?
Marissa Williams is a physician assistant in Zephyrhills, FL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Marissa Williams located?
Marissa Williams is listed at 7213 Green Slope Dr, Zephyrhills, FL 33541. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Marissa Williams's phone number?
The number on file is (813) 355-4914. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Marissa Williams?
Marissa Williams's National Provider Identifier is 1851688873. 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 Marissa Williams train?
Marissa Williams attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marissa Williams have?
Marissa Williams has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Marissa Williams do most often?
According to Medicare billing data, Marissa Williams 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
Is Marissa Williams's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marissa Williams. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.