Mark Liwanag, DO, MPH
NPI 1932514858 · Cardiovascular Disease Physician · Hilton Head Island, SC
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Liwanag, DO, MPH is a Cardiovascular Disease Physician provider in Hilton Head Island, SC (NPI 1932514858).
Provider details
- NPI number
- 1932514858
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- 95481 (SC)
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 tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,156 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 784 | $13 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System Or Implantable Defibrillator System, Remote Up to 90 Days93296 | 700 | $20 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System, Remote Up to 90 Days93294 | 527 | $28 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 320 | $97 |
| Programming of Dual Lead Pacemaker System93280 | 317 | $74 |
| Evaluation of Single, Dual, Or Multiple Lead Implantable Defibrillator System, Remote Up to 90 Days93295 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 246 | 72 |
| Apixabanbrand: Eliquis | 186 | 43 |
| Flecainide Acetate | 69 | 21 |
| Amiodarone Hcl | 58 | 33 |
| Rivaroxabanbrand: Xarelto | 56 | 15 |
| Pantoprazole Sodium | 44 | 43 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,336 across 29 records (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
Additional practice locations (1)
- 2000 S Thompson StFlagstaff, AZ 86001-8759Phone: (928) 226-6400
Registry dates
- Enumerated
- 2014-06-30
- Last updated
- 2026-03-03
- Certified
- 2026-03-03
Frequently asked questions
- What is Mark Liwanag's NPI number?
- Mark Liwanag's National Provider Identifier (NPI) is 1932514858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Liwanag's specialty?
- Mark Liwanag is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Liwanag located?
- Mark Liwanag's practice location on file with NPPES is 8 Hospital Center Blvd Ste 150, Hilton Head Island, SC 29926-8701.
- What is Mark Liwanag's phone number?
- The practice phone number listed in the NPPES registry for Mark Liwanag is (854) 235-2730.
- Does Mark Liwanag accept Medicare?
- Mark Liwanag is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Liwanag's NPI active?
- Yes — Mark Liwanag's NPI (1932514858) is active in the NPPES registry as of the last update on 2026-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.