Aye Kyu, MD
NPI 1255430005 · Internal Medicine Physician · Vallejo, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aye Kyu, MD is a Internal Medicine Physician provider in Vallejo, CA (NPI 1255430005).
Provider details
- NPI number
- 1255430005
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A71669 (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
1,038 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 635 | $84 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 219 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 165 | $126 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 19 | $184 |
Typical Medicare-allowed amounts for these services range $84–$184 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 41 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 37 | 35 |
| Carvedilol | 35 | 20 |
| Azithromycin | 33 | 30 |
| Potassium Chloride | 30 | 19 |
| Atorvastatin Calcium | 27 | 17 |
| Apixabanbrand: Eliquis | 26 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2010-02-03
Frequently asked questions
- What is Aye Kyu's NPI number?
- Aye Kyu's National Provider Identifier (NPI) is 1255430005, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aye Kyu's specialty?
- Aye Kyu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Aye Kyu located?
- Aye Kyu's practice location on file with NPPES is 975 Sereno Dr, Vallejo, CA 94589-2441.
- What is Aye Kyu's phone number?
- The practice phone number listed in the NPPES registry for Aye Kyu is (707) 651-1000.
- Does Aye Kyu accept Medicare?
- Aye Kyu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aye Kyu's NPI active?
- Yes — Aye Kyu's NPI (1255430005) is active in the NPPES registry as of the last update on 2010-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.