Katherine Ziesing, PA-C
NPI 1710467774 · Physician Assistant · San Francisco, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Ziesing, PA-C is a Physician Assistant provider in San Francisco, CA (NPI 1710467774).
Provider details
- NPI number
- 1710467774
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA55873 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,873 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 488 | $73 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 484 | $93 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 392 | $59 |
| X-Ray of Knee, 3 Views73562 | 335 | $46 |
| X-Ray of Hip, 2-3 Views73502 | 282 | $54 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 252 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 67 | 58 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 67 | 51 |
| Oxycodone Hcl | 59 | 44 |
| Celecoxib | 43 | 28 |
| Tramadol Hcl | 42 | 28 |
| Ondansetron Hcl | 18 | 17 |
| Diclofenac Sodium | 15 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-08-20
- Last updated
- 2021-12-03
- Certified
- 2021-12-03
Frequently asked questions
- What is Katherine Ziesing's NPI number?
- Katherine Ziesing's National Provider Identifier (NPI) is 1710467774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Ziesing's specialty?
- Katherine Ziesing is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine Ziesing located?
- Katherine Ziesing's practice location on file with NPPES is 3838 California St, San Francisco, CA 94118-1522.
- What is Katherine Ziesing's phone number?
- The practice phone number listed in the NPPES registry for Katherine Ziesing is (415) 668-8010.
- Does Katherine Ziesing accept Medicare?
- Katherine Ziesing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Ziesing's NPI active?
- Yes — Katherine Ziesing's NPI (1710467774) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.