Kei Ko, M.D.
NPI 1649582768 · Emergency Medicine Physician · Texarkana, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kei Ko, M.D. is a Emergency Medicine Physician provider in Texarkana, TX (NPI 1649582768).
Provider details
- NPI number
- 1649582768
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- T9153 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
306 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 91 | $118 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 75 | $176 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 46 | $8 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 45 | $70 |
| Critical Care, First 30-74 Minutes99291 | 38 | $215 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 11 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 16 | 16 |
| Azithromycin | 14 | 14 |
| Methylprednisolone | 14 | 14 |
| Cefdinir | 12 | 12 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 11 | 11 |
| Ketorolac Tromethamine | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1980 Crompond RdCortlandt Manor, NY 10567-4144Phone: (914) 734-3300
Registry dates
- Enumerated
- 2010-07-06
- Last updated
- 2023-12-15
- Certified
- 2023-12-15
Frequently asked questions
- What is Kei Ko's NPI number?
- Kei Ko's National Provider Identifier (NPI) is 1649582768, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kei Ko's specialty?
- Kei Ko is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kei Ko located?
- Kei Ko's practice location on file with NPPES is 2600 Saint Michael Dr, Texarkana, TX 75503-2372.
- What is Kei Ko's phone number?
- The practice phone number listed in the NPPES registry for Kei Ko is (903) 614-1000.
- Does Kei Ko accept Medicare?
- Kei Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kei Ko's NPI active?
- Yes — Kei Ko's NPI (1649582768) is active in the NPPES registry as of the last update on 2023-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.