Ki Won Seo, M.D.
NPI 1003236423 · Hospitalist Physician · Plainview, NY
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ki Won Seo, M.D. is a Hospitalist Physician provider in Plainview, NY (NPI 1003236423).
Provider details
- NPI number
- 1003236423
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 290456 (NY)
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
12 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
613 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 50 Minutes99233 | 264 | $116 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 204 | $79 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 121 | $112 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $181 |
Typical Medicare-allowed amounts for these services range $79–$181 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ringer'S Solution,lactatedbrand: Lactated Ringers | 58 | — |
| Magnesium Sulfate | 27 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 26 | 26 |
| Pantoprazole Sodium | 22 | 21 |
| Apixabanbrand: Eliquis | 15 | 12 |
| Prednisone | 14 | 14 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$854 across 32 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
- 2014-04-24
- Last updated
- 2018-01-04
Frequently asked questions
- What is Ki Won Seo's NPI number?
- Ki Won Seo's National Provider Identifier (NPI) is 1003236423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ki Won Seo's specialty?
- Ki Won Seo is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Ki Won Seo located?
- Ki Won Seo's practice location on file with NPPES is 54 Central Park Rd, Plainview, NY 11803-2012.
- What is Ki Won Seo's phone number?
- The practice phone number listed in the NPPES registry for Ki Won Seo is (718) 670-2000.
- Does Ki Won Seo accept Medicare?
- Ki Won Seo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ki Won Seo's NPI active?
- Yes — Ki Won Seo's NPI (1003236423) is active in the NPPES registry as of the last update on 2018-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.