Brian Pien, M.D.
NPI 1457436941 · Infectious Disease Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Pien, M.D. is a Infectious Disease Physician provider in Honolulu, HI (NPI 1457436941).
Provider details
- NPI number
- 1457436941
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2001-01116 (NC)
Specialties & taxonomies
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,548 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 | 1,850 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 784 | $130 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 543 | $49 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 303 | $127 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 68 | $170 |
Typical Medicare-allowed amounts for these services range $49–$170 (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 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meropenem | 207 | 25 |
| Doxycycline Hyclate | 154 | 94 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 135 | 81 |
| Ciprofloxacin Hcl | 121 | 81 |
| Atorvastatin Calcium | 102 | 36 |
| Levofloxacin | 88 | 57 |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 85 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,826 across 151 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
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2020-02-13
- Certified
- 2020-02-13
Frequently asked questions
- What is Brian Pien's NPI number?
- Brian Pien's National Provider Identifier (NPI) is 1457436941, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Pien's specialty?
- Brian Pien is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Pien located?
- Brian Pien's practice location on file with NPPES is 1010 S King St, Honolulu, HI 96814-1701.
- What is Brian Pien's phone number?
- The practice phone number listed in the NPPES registry for Brian Pien is (808) 597-8765.
- Does Brian Pien accept Medicare?
- Brian Pien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Pien's NPI active?
- Yes — Brian Pien's NPI (1457436941) is active in the NPPES registry as of the last update on 2020-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.