Greg Flaker, M.D.
NPI 1851342299 · Clinical Cardiac Electrophysiology Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greg Flaker, M.D. is a Clinical Cardiac Electrophysiology Physician provider in Columbia, MO (NPI 1851342299).
Provider details
- NPI number
- 1851342299
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R8297 (MO)
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
20 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
1,833 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 1,279 | $8 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 235 | $95 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 84 | $8 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 79 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 64 | $116 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 220 | 66 |
| Apixabanbrand: Eliquis | 215 | 47 |
| Metoprolol Succinate | 138 | 43 |
| Amlodipine Besylate | 118 | 29 |
| Lisinopril | 104 | 28 |
| Spironolactone | 96 | 27 |
| Sacubitril/Valsartan |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$257 across 6 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
- 2006-05-12
- Last updated
- 2024-10-02
- Certified
- 2024-10-02
Frequently asked questions
- What is Greg Flaker's NPI number?
- Greg Flaker's National Provider Identifier (NPI) is 1851342299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greg Flaker's specialty?
- Greg Flaker is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Greg Flaker located?
- Greg Flaker's practice location on file with NPPES is 500 N Keene St Ste 406, Columbia, MO 65201-8104.
- What is Greg Flaker's phone number?
- The practice phone number listed in the NPPES registry for Greg Flaker is (573) 884-3278.
- Does Greg Flaker accept Medicare?
- Greg Flaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greg Flaker's NPI active?
- Yes — Greg Flaker's NPI (1851342299) is active in the NPPES registry as of the last update on 2024-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.