Physician Profile
Unclaimed ProfileAbout CALLAGHAN
Based in Norfolk, VA, William E. Callaghan, M.D. is listed in the NPI registry under cardiovascular disease (cardiology). William graduated from Eastern Virginia Medical School in 1982. William is also listed as specialising in cardiovascular disease.
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 kind of doctor is Dr. Callaghan?
Dr. Callaghan is a cardiovascular disease (cardiology) in Norfolk, VA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
What is Dr. Callaghan's address?
Dr. Callaghan is listed at 930 W 21ST ST FL 2, Norfolk, VA 23517. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Callaghan?
The number on file is (757) 624-1785. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Callaghan's NPI number?
Dr. Callaghan's National Provider Identifier is 1306860176. 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. Callaghan train?
Dr. Callaghan attended Eastern Virginia Medical School, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Callaghan been practising?
Dr. Callaghan has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Callaghan perform?
According to Medicare billing data, Dr. Callaghan performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Callaghan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Callaghan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (757) 624-1785
- Email not available
Practice Locations
930 W 21ST ST FL 2
Norfolk, VA 23517
Procedures Most Often Billed to Medicare
1,137 services · 847 patients · 18 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
36 |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
12 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
209 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
148 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
54 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
49 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
14 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
12 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
12 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related 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 1
Same specialty, same street address — most likely the same department or group.
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.
Other cardiovascular diseases in Norfolk 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Eastern Virginia Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1982 at Eastern Virginia Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 8
Providers in VA 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.