Konstantinos Vlachonassios, M.D.
NPI 1851473003 · Cardiovascular Disease Physician · Lakewood, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Konstantinos Vlachonassios, M.D. is a Cardiovascular Disease Physician provider in Lakewood, CA (NPI 1851473003).
Provider details
- NPI number
- 1851473003
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A52738 (CA)
Specialties & taxonomies
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
1,492 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 521 | $130 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 324 | $114 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 120 | $66 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 113 | $8 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 81 | $166 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 424 | 142 |
| Ezetimibe | 388 | 133 |
| Atorvastatin Calcium | 376 | 120 |
| Furosemide | 267 | 104 |
| Rosuvastatin Calcium | 266 | 86 |
| Hydralazine Hcl | 264 | 81 |
| Metoprolol Succinate | 254 | 84 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,196 across 106 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
- 2006-10-19
- Last updated
- 2024-12-12
- Certified
- 2024-12-12
Frequently asked questions
- What is Konstantinos Vlachonassios's NPI number?
- Konstantinos Vlachonassios's National Provider Identifier (NPI) is 1851473003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Konstantinos Vlachonassios's specialty?
- Konstantinos Vlachonassios is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Konstantinos Vlachonassios located?
- Konstantinos Vlachonassios's practice location on file with NPPES is 3300 E South St Ste 301, Lakewood, CA 90805-4561.
- What is Konstantinos Vlachonassios's phone number?
- The practice phone number listed in the NPPES registry for Konstantinos Vlachonassios is (562) 622-9500.
- Does Konstantinos Vlachonassios accept Medicare?
- Konstantinos Vlachonassios is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Konstantinos Vlachonassios's NPI active?
- Yes — Konstantinos Vlachonassios's NPI (1851473003) is active in the NPPES registry as of the last update on 2024-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.