Mariusz Wirga, MD
NPI 1346218625 · Psychiatry Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariusz Wirga, MD is a Psychiatry Physician provider in Long Beach, CA (NPI 1346218625).
Provider details
- NPI number
- 1346218625
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A74487 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
566 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 160 | $93 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 146 | $75 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 84 | $66 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 80 | $122 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 73 | $81 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Duloxetine Hcl | 55 | 14 |
| Trazodone Hcl | 49 | 11 |
| Alprazolam | 44 | — |
| Lamotrigine | 33 | — |
| Escitalopram Oxalate | 32 | — |
| Quetiapine Fumarate | 29 | — |
| Lorazepam | 25 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-10
- Last updated
- 2020-02-28
- Certified
- 2020-02-28
Frequently asked questions
- What is Mariusz Wirga's NPI number?
- Mariusz Wirga's National Provider Identifier (NPI) is 1346218625, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariusz Wirga's specialty?
- Mariusz Wirga is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mariusz Wirga located?
- Mariusz Wirga's practice location on file with NPPES is 4201 Long Beach Blvd, Long Beach, CA 90807-2020.
- What is Mariusz Wirga's phone number?
- The practice phone number listed in the NPPES registry for Mariusz Wirga is (562) 427-3897.
- Does Mariusz Wirga accept Medicare?
- Mariusz Wirga is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariusz Wirga's NPI active?
- Yes — Mariusz Wirga's NPI (1346218625) is active in the NPPES registry as of the last update on 2020-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.