Keiko Aikawa, MD
NPI 1194808121 · Cardiovascular Disease Physician · Napa, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keiko Aikawa, MD is a Cardiovascular Disease Physician provider in Napa, CA (NPI 1194808121).
Provider details
- NPI number
- 1194808121
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 00C54986 (CA)
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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
777 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $130 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 143 | $15 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 106 | $209 |
| Ultrasound of Both Sides of Head and Neck Blood Flow93880 | 49 | $204 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 40 | $93 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 440 | 140 |
| Atorvastatin Calcium | 250 | 92 |
| Lisinopril | 197 | 60 |
| Apixabanbrand: Eliquis | 172 | 50 |
| Amlodipine Besylate | 161 | 57 |
| Losartan Potassium | 134 | 45 |
| Carvedilol |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-23
- Last updated
- 2012-05-03
Frequently asked questions
- What is Keiko Aikawa's NPI number?
- Keiko Aikawa's National Provider Identifier (NPI) is 1194808121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keiko Aikawa's specialty?
- Keiko Aikawa is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Keiko Aikawa located?
- Keiko Aikawa's practice location on file with NPPES is 3443 Villa Ln, Napa, CA 94558-6417.
- What is Keiko Aikawa's phone number?
- The practice phone number listed in the NPPES registry for Keiko Aikawa is (707) 253-8282.
- Does Keiko Aikawa accept Medicare?
- Keiko Aikawa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keiko Aikawa's NPI active?
- Yes — Keiko Aikawa's NPI (1194808121) is active in the NPPES registry as of the last update on 2012-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.