KATHERINE JANET ZIESING PA-C
NPI 1710467774
Physician Assistant in San Francisco, CA

Active since August 20, 2018PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
3838 CALIFORNIA ST, SAN FRANCISCO, CA 94118(415) 668-8010(415) 752-2560 Get Directions Write a Review

NPPES record last updated: December 3, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 3, 2021, Aug 20, 2018 (2 updates tracked since 2018).

About Katherine Janet Ziesing Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE JANET ZIESING PA-C (NPI 1710467774) is an individual physician assistant in San Francisco, California, licensed in California (PA55873) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1710467774
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKATHERINE JANET ZIESINGCredential: PA-C
Location Address3838 CALIFORNIA STSan Francisco, CA 94118-1522
Mailing Address601 Nevada StSausalito, CA 94965-1615 · (530) 559-8869
Fax(415) 752-2560
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateAugust 20, 2018
Last NPPES UpdateDecember 3, 20212 updates tracked since enumeration
NPPES CertifiedDecember 3, 2021
NPI 1710467774 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in CA · PA55873
Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

3838 CALIFORNIA ST, San Francisco, CA 94118

Other Names 1

Former Name (1)Katherine Reiswig Pa-c

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Katherine Janet Ziesing Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6901158302
PECOS Enrollment IDI20181012002182
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 20

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg J7318
Hyaluronan or derivative, Durolane, is a treatment injected directly into the joint to relieve pain and improve mobility. It's often used for arthritis in the knee. The substance works by supplementing your body's natural joint fluid to help lubricate and cushion the joint.
5,760 services71 patients
Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg J7329
Trivisc is a treatment involving injections of a substance called hyaluronan into your joint, typically the knee. This substance is similar to a natural fluid in your joints that helps cushion and lubricate them. Trivisc can help reduce pain and improve joint movement.
3,250 services40 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
998 services171 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
488 services302 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
484 services395 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
392 services285 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Knee orthosis, single upright, thigh and calf, with adjustable flexion and extension joint (unicentric or polycentric), medial-lateral and rotation control, with or without varus/valgus adjustment, prefabricated item that has been trimmed, bent, molded, assembled, or otherwise customized to fit a specific patient by an individual with expertise L1843
DME-Orthotic Devices · category DF011N
2 suppliers11 claims11 services$729.07 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Obstetrics & Gynecology (Gynecology)
3838 CALIFORNIA ST, SUITE 316
SAN FRANCISCO, CA 94118
Internal Medicine (Hematology & Oncology)
3838 CALIFORNIA ST, SUITE 707
SAN FRANCISCO, CA 94118
Colon & Rectal Surgery
3838 CALIFORNIA ST, RM 616
SAN FRANCISCO, CA 94118
Internal Medicine
3838 CALIFORNIA ST, SUITE 608
SAN FRANCISCO, CA 94118
Otolaryngology
3838 CALIFORNIA ST, SUITE 505
SAN FRANCISCO, CA 94118
Orthopaedic Surgery
3838 CALIFORNIA ST, SUITE 715
SAN FRANCISCO, CA 94118
Orthopaedic Surgery
3838 CALIFORNIA ST, SUITE 715
SAN FRANCISCO, CA 94118
Specialist
3838 CALIFORNIA ST, SUITE 707
SAN FRANCISCO, CA 94118

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Ziesing's NPI number?

The NPI number for Katherine Ziesing is 1710467774. It was assigned to this individual provider in the NPPES registry on August 20, 2018. The provider is also known as Katherine Reiswig Pa-C.

Where is Katherine Ziesing located?

Katherine Ziesing practices at 3838 California St, San Francisco, CA 94118. The listed phone number is (415) 668-8010.

What is Katherine Ziesing's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Katherine Ziesing enrolled in Medicare?

Yes. Katherine Ziesing is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Katherine Ziesing was last updated on December 3, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.