Michael Maruska, D.O.
NPI 1659669018 · Emergency Medicine Physician · Huntington Beach, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Maruska, D.O. is a Emergency Medicine Physician provider in Huntington Beach, CA (NPI 1659669018).
Provider details
- NPI number
- 1659669018
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 34.011750 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
160 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 44 | $165 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 31 | $119 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 25 | $129 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 23 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 19 | $91 |
| Critical Care, First 30-74 Minutes99291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 18 | 18 |
| Azithromycin | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 800 S Main StCorona, CA 92882-3420Phone: (951) 737-4343
- 580 Park AveLaguna Beach, CA 92651-2339Phone: (714) 366-6453
- 1000 W Carson StTorrance, CA 90502-2004Phone: (310) 222-2345
- 2600 Saint Michael DrTexarkana, TX 75503-5220Phone: (903) 614-1000
Registry dates
- Enumerated
- 2011-07-19
- Last updated
- 2018-04-20
Frequently asked questions
- What is Michael Maruska's NPI number?
- Michael Maruska's National Provider Identifier (NPI) is 1659669018, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Maruska's specialty?
- Michael Maruska is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Maruska located?
- Michael Maruska's practice location on file with NPPES is 17772 Beach Blvd, Huntington Beach, CA 92647-6819.
- What is Michael Maruska's phone number?
- The practice phone number listed in the NPPES registry for Michael Maruska is (714) 843-5000.
- Does Michael Maruska accept Medicare?
- Michael Maruska is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Maruska's NPI active?
- Yes — Michael Maruska's NPI (1659669018) is active in the NPPES registry as of the last update on 2018-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.