Michael Luna, M.D.
Michael Luna, M.D. is an Adult Congenital Heart Disease Physician in Little Rock, AR, registered under NPI 1831308048. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 4301 W MARKHAM ST # 532, Little Rock, AR 72205. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| E-13697 | AR | Adult Congenital Heart Disease Physician primary |
| E-13697 | AR | Interventional Cardiology Physician |
| E-17325 | TX | Interventional Cardiology Physician |
| P3034 | TX | Internal Medicine Physician |
| P3034 | TX | Adult Congenital Heart Disease Physician |
| E-17325 | AR | Cardiovascular Disease Physician |
Licences are recorded in 2 states: AR, TX. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Cardiovascular Disease (cardiology)
- PAC ID
- 9638333701
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Texas | I20120621000384 | Practitioner - Cardiovascular Disease (cardiology) |
| Arkansas | I20240112000299 | Practitioner - Adult Congenital Heart Disease (achd) |
Medicare enrolment is recorded as approved under the provider type Practitioner - Cardiovascular Disease (cardiology). There are 2 separate enrolment records across 2 states (TX, AR). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Arkansas and Texas. The practice address on file is in Little Rock, AR, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- E-13697
- Specialty
- Adult Congenital Heart Disease Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Adult Congenital Heart Disease covers
A physician who specializes in the care and treatment of adults with congenital heart disease. Adult congenital heart disease (ACHD) physicians are trained to understand the complexities of congenital heart disease, anatomy, physiology, surgical repairs, and long-term complications and use that to manage ACHD with acquired heart disease, including heart failure, arrhythmias, and pulmonary hypertension. NUCC Health Care Provider Taxonomy, code 207RA0002X
All registered taxonomy codes
This provider registers 6 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RA0002X | Adult Congenital Heart Disease Physician Adult Congenital Heart Disease | E-13697 | AR | primary |
| 207RI0011X | Interventional Cardiology Physician Interventional Cardiology | E-13697 | AR | |
| 207RI0011X | Interventional Cardiology Physician Interventional Cardiology | E-17325 | TX | |
| 207R00000X | Internal Medicine Physician | P3034 | TX | |
| 207RA0002X | Adult Congenital Heart Disease Physician Adult Congenital Heart Disease | P3034 | TX | |
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | E-17325 | AR |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1831308048 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 22, 2007 |
| Last updated | Jan 24, 2024 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
4301 W MARKHAM ST # 532 Little Rock, AR 72205 (501) 686-5311 Fax (501) 686-5935 |
| Mailing address |
4301 W MARKHAM ST # 783 Little Rock, AR 72205 |
| Other identifiers |
BP1-0022663
· Other |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 3 | 1 | 3 | 0 | 8 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 6 | 1 | 6 | 0 | 7 | 0 | 8 |
Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.