Mark Kwarciak, MD
NPI 1477052751 · Hospitalist Physician · Perth Amboy, NJ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Kwarciak, MD is a Hospitalist Physician provider in Perth Amboy, NJ (NPI 1477052751).
Provider details
- NPI number
- 1477052751
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- ME162581 (FL)
Specialties & taxonomies
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
8 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
675 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 388 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 123 | $115 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 117 | $110 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 | $168 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 22 | $126 |
Typical Medicare-allowed amounts for these services range $76–$168 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 33 | 33 |
| Prednisone | 26 | 17 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 18 |
| Furosemide | 13 | 13 |
| Atorvastatin Calcium | 12 | 11 |
| Carvedilol | 12 | 12 |
| Apixabanbrand: Eliquis | 12 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-02-01
- Last updated
- 2025-01-13
- Certified
- 2025-01-13
Frequently asked questions
- What is Mark Kwarciak's NPI number?
- Mark Kwarciak's National Provider Identifier (NPI) is 1477052751, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Kwarciak's specialty?
- Mark Kwarciak is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Kwarciak located?
- Mark Kwarciak's practice location on file with NPPES is 530 New Brunswick Ave, Perth Amboy, NJ 08861-3654.
- What is Mark Kwarciak's phone number?
- The practice phone number listed in the NPPES registry for Mark Kwarciak is (732) 324-5080.
- Does Mark Kwarciak accept Medicare?
- Mark Kwarciak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Kwarciak's NPI active?
- Yes — Mark Kwarciak's NPI (1477052751) is active in the NPPES registry as of the last update on 2025-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.