KATHLEEN M. PIACQUADIO MD
NPI 1124176946
Obstetrics & Gynecology in San Diego, CA

Active since January 08, 2007PECOS EnrolledAccepts Medicare Assignment
4647 ZION AVE, SAN DIEGO, CA 92120(619) 528-5000 Get Directions Write a Review

NPPES record last updated: June 2, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 2, 2026, Nov 22, 2021 (2 updates tracked since 2021).

About Kathleen M. Piacquadio Md NPPES

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

KATHLEEN M. PIACQUADIO MD (NPI 1124176946) is an individual obstetrics & gynecology provider in San Diego, California, licensed in California (G59580) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Coeur D Alene, and is a graduate of Other (1984).

NPPES Registry Identity

NPI1124176946
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameKATHLEEN M. PIACQUADIOCredential: MD
Location Address4647 ZION AVESan Diego, CA 92120-2507
Mailing Address4647 Zion AveSan Diego, CA 92120-2507 · (619) 528-5000
Sole ProprietorNo
Medical School CMSOtherGraduated 1984
Enumeration DateJanuary 8, 2007
Last NPPES UpdateJune 2, 20262 updates tracked since enumeration
NPPES CertifiedJune 2, 2026
✔ NPI 1124176946 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in CA · G59580✔ Licensed in ID · 4771780
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
4647 ZION AVE, San Diego, CA 92120

Secondary Practice Location 1

Location 1980 W Ironwood Dr Ste 306Coeur D Alene, ID 83814-2668 · Phone (208) 625-4970 · Fax (208) 625-4991

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kathleen M. Piacquadio Md 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 ID9133315278
PECOS Enrollment IDI20251104003714, I20260226003500
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Kathleen Piacquadio reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Health Maintenance Organization
4647 ZION AVE
San Diego, CA 92120
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
Internal Medicine
400 E 5TH AVE
Spokane, WA 99202
  • Reassigned Medicare billing, Washington enrollment
  • 4,383 clinicians in this Medicare group
Psychiatry
2003 KOOTENAI HEALTH WAY
Coeur D Alene, ID 83814
  • Reassigned Medicare billing, Idaho enrollment
  • 472 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92120 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
$140.22 typical visit price
range $62.10 – $184.71
Typical copayment $35.05 (range $15.52 – $46.17)
Most-billed visit code 99204
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
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.

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
4647 ZION AVE
SAN DIEGO, CA 92120
Internal Medicine (Infectious Disease)
4647 ZION AVE
SAN DIEGO, CA 92120
Internal Medicine
4647 ZION AVE, DEPARTMENT OF HOSPITAL MEDICINE
SAN DIEGO, CA 92120
Pharmacist
4647 ZION AVE
SAN DIEGO, CA 92120
Nurse Anesthetist, Certified Registered
4647 ZION AVE
SAN DIEGO, CA 92120
Social Worker (Clinical)
4647 ZION AVE
SAN DIEGO, CA 92120
Internal Medicine (Pulmonary Disease)
4647 ZION AVE
SAN DIEGO, CA 92120
Internal Medicine (Infectious Disease)
4647 ZION AVE
SAN DIEGO, CA 92120

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 Kathleen Piacquadio's NPI number?

The NPI number for Kathleen Piacquadio is 1124176946. It was assigned to this individual provider in the NPPES registry on January 8, 2007.

Where is Kathleen Piacquadio located?

Kathleen Piacquadio practices at 4647 Zion Ave, San Diego, CA 92120. The listed phone number is (619) 528-5000.

What is Kathleen Piacquadio's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Kathleen Piacquadio enrolled in Medicare?

Yes. Kathleen Piacquadio 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.

Which organizations bill Medicare for Kathleen Piacquadio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Piacquadio reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (San Diego, CA), Multicare Health System (Spokane, WA) and Kootenai Health, Inc. (Coeur D Alene, ID). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kathleen Piacquadio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kathleen Piacquadio accept?

Health plans from Molina Healthcare, PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Kathleen Piacquadio as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Kathleen Piacquadio was last updated on June 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.