Provider Profile
Katherine Williams, PA-C
Unclaimed ProfileAbout Katherine Williams
Listed in the NPI registry as a physician assistant, Katherine Williams, PA-C practices in Boston, MA. Katherine is also listed as specializing in physician assistant — medical and physician assistant — surgical. Medicare claims data shows Katherine provided 179 services to 151 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, electronic assessment of bladder emptying, and limited ultrasound scan of pelvis.
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.
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
- (617) 638-8485
- Email not available
Practice Locations
725 ALBANY ST, STE 3B SHAPIRO BLDG
Boston, MA 02118
Procedures Most Often Billed to Medicare
179 services · 151 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Electronic assessment of bladder emptying | Procedure | 51741 |
27 | As often as other peers in Physician Assistant |
| Limited ultrasound scan of pelvis | Imaging | 76857 |
22 | More often than most 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 |
109 | 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 |
21 | As often as other 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 at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 32 related providers in 4 groups
Other physician assistants in Boston 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Electronic assessment of bladder emptying 8
Providers in MA who bill this service to Medicare most often.
Common questions
What kind of doctor is Katherine Williams?
Katherine Williams is a physician assistant in Boston, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Katherine Williams's address?
Katherine Williams is listed at 725 Albany St, Ste 3B Shapiro Bldg, Boston, MA 02118. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Katherine Williams?
The number on file is (617) 638-8485. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Katherine Williams?
Katherine Williams's National Provider Identifier is 1922795699. 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 Katherine Williams train?
Katherine Williams attended Other, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Katherine Williams have?
Katherine Williams has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What procedures does Katherine Williams perform?
According to Medicare billing data, Katherine Williams performs procedures including electronic assessment of bladder emptying; reads or performs imaging such as limited ultrasound scan of pelvis, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Katherine Williams's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Katherine 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.