Physician Profile
Unclaimed ProfileAbout COLLERAN
John Colleran, D.O. practises cardiovascular disease (cardiology) in North Little Rock, AR. John is also listed as specialising in specialist and interventional cardiology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Colleran specialise in?
Dr. Colleran is a cardiovascular disease (cardiology) in North Little Rock, AR. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where is Dr. Colleran located?
Dr. Colleran is listed at 4000 RICHARDS RD SUITE A, North Little Rock, AR 72117. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Colleran's phone number?
The number on file is (501) 758-5133. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Colleran?
Dr. Colleran's National Provider Identifier is 1265494231. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Colleran go to medical school?
Dr. Colleran attended Other, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Colleran have?
Dr. Colleran has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Colleran do most often?
According to Medicare billing data, Dr. Colleran performs procedures including insertion of vena cava filter with review by radiologist; reads or performs imaging such as 3d radiographic procedure; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Colleran's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Colleran. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (501) 758-5133
- Email not available
Practice Locations
4000 RICHARDS RD SUITE A
North Little Rock, AR 72117
Procedures Most Often Billed to Medicare
2,394 services · 1,596 patients · 20 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of vena cava filter with review by radiologist | Procedure | 37191 |
11 |
| 3d radiographic procedure | Imaging | 76376 |
56 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
592 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
132 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
107 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
61 |
| Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | Treatment | 93351 |
28 |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
22 |
| Complete ultrasound study of arm and leg arteries | Treatment | 93923 |
21 |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
17 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiovascular diseases at this location 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 21 related providers in 4 groups
Other cardiovascular diseases in North Little Rock 4
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of vena cava filter with review by radiologist 1
Providers in AR who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.