John Attokaren, M.D.
NPI 1831297423 · Cardiovascular Disease Physician · Alpharetta, GA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Attokaren, M.D. is a Cardiovascular Disease Physician provider in Alpharetta, GA (NPI 1831297423).
Provider details
- NPI number
- 1831297423
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 29575 (GA)
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
247 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 | 168 | $126 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 58 | $14 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 21 | $191 |
Typical Medicare-allowed amounts for these services range $14–$191 (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 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 152 | 62 |
| Metoprolol Succinate | 128 | 52 |
| Atorvastatin Calcium | 121 | 61 |
| Apixabanbrand: Eliquis | 90 | 29 |
| Furosemide | 88 | 31 |
| Rosuvastatin Calcium | 77 | 32 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2010-05-06
Frequently asked questions
- What is John Attokaren's NPI number?
- John Attokaren's National Provider Identifier (NPI) is 1831297423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Attokaren's specialty?
- John Attokaren is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John Attokaren located?
- John Attokaren's practice location on file with NPPES is 11600 Atlantis Place, Alpharetta, GA 30022.
- What is John Attokaren's phone number?
- The practice phone number listed in the NPPES registry for John Attokaren is (770) 664-4449.
- Does John Attokaren accept Medicare?
- John Attokaren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Attokaren's NPI active?
- Yes — John Attokaren's NPI (1831297423) is active in the NPPES registry as of the last update on 2010-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.