Mark Causin, MD
NPI 1881872844 · General Acute Care Hospital · Honolulu, HI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Causin, MD is a General Acute Care Hospital provider in Honolulu, HI (NPI 1881872844).
Provider details
- NPI number
- 1881872844
- Entity type
- Individual
- Primary specialty
- General Acute Care HospitalHospitals
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 14915 (HI)
Specialties & taxonomies
Hospitals
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
210 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 35 Minutes99232 | 81 | $81 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 44 | $51 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 43 | $119 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 28 | $134 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 14 | $84 |
Typical Medicare-allowed amounts for these services range $51–$134 (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.
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
Additional practice locations (1)
- 1165 Montgomery DrSanta Rosa, CA 95405-4801Phone: (707) 546-3210
Registry dates
- Enumerated
- 2008-02-01
- Last updated
- 2024-02-13
- Certified
- 2024-02-13
Frequently asked questions
- What is Mark Causin's NPI number?
- Mark Causin's National Provider Identifier (NPI) is 1881872844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Causin's specialty?
- Mark Causin is listed in the NPPES registry with a primary specialty of General Acute Care Hospital (Hospitals).
- Where is Mark Causin located?
- Mark Causin's practice location on file with NPPES is 888 S King St, Honolulu, HI 96813-3097.
- What is Mark Causin's phone number?
- The practice phone number listed in the NPPES registry for Mark Causin is (808) 522-4000.
- Does Mark Causin accept Medicare?
- Mark Causin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Causin's NPI active?
- Yes — Mark Causin's NPI (1881872844) is active in the NPPES registry as of the last update on 2024-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.