Joanna Kopacz, MD
NPI 1275792368 · Infectious Disease Physician · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Kopacz, MD is a Infectious Disease Physician provider in Laguna Hills, CA (NPI 1275792368).
Provider details
- NPI number
- 1275792368
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 262583 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,182 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 632 | $114 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 351 | $166 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 154 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $129 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 19 | $180 |
Typical Medicare-allowed amounts for these services range $76–$180 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ceftriaxone Sodiumbrand: Ceftriaxone | 117 | 33 |
| Meropenem | 79 | 21 |
| Ertapenem Sodiumbrand: Ertapenem | 67 | 37 |
| Minocycline Hcl | 43 | 23 |
| Vancomycin Hcl | 38 | 11 |
| Cefazolin Sodium | 27 | — |
| Daptomycin | 27 | — |
| Emtricitabine/Tenofov Alafenambrand: Descovy |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-04
- Last updated
- 2024-02-28
- Certified
- 2024-02-28
Frequently asked questions
- What is Joanna Kopacz's NPI number?
- Joanna Kopacz's National Provider Identifier (NPI) is 1275792368, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Kopacz's specialty?
- Joanna Kopacz is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Joanna Kopacz located?
- Joanna Kopacz's practice location on file with NPPES is 24411 Health Center Dr Ste 560, Laguna Hills, CA 92653-3687.
- What is Joanna Kopacz's phone number?
- The practice phone number listed in the NPPES registry for Joanna Kopacz is (949) 218-7251.
- Does Joanna Kopacz accept Medicare?
- Joanna Kopacz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Kopacz's NPI active?
- Yes — Joanna Kopacz's NPI (1275792368) is active in the NPPES registry as of the last update on 2024-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.