Physician Profile
Unclaimed ProfileAbout O'CONNOR
Based in Glendale, CA, Lawrence Robert O'Connor, M.D. is listed in the NPI registry under cardiovascular disease (cardiology). Lawrence graduated from University of California, Geffen School of Medicine in 1971. Lawrence is also listed as specialising in cardiovascular disease 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 is Dr. O'Connor's specialty?
Dr. O'Connor is a cardiovascular disease (cardiology) in Glendale, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CARDIOVASCULAR DISEASE (CARDIOLOGY)”.
NPI registry
Where can I find Dr. O'Connor?
Dr. O'Connor is listed at 1510 S CENTRAL AVE SUITE 420, Glendale, CA 91204. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. O'Connor?
The number on file is (818) 242-8816. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. O'Connor's NPI number?
Dr. O'Connor's National Provider Identifier is 1851434898. 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
What is Dr. O'Connor's medical education?
Dr. O'Connor attended University of California, Geffen School of Medicine, graduating in 1971. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Connor been practising?
Dr. O'Connor has 55 years experience. Calculated from a graduation year of 1971, reported in the CMS National Downloadable File.
CMS public data
What is Dr. O'Connor known for?
According to Medicare billing data, Dr. O'Connor provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and exercise or drug-induced heart stress test with electrocardiogram with supervision by physician, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. O'Connor confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Connor. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (818) 242-8816
- Email not available
Practice Locations
1510 S CENTRAL AVE SUITE 420
Glendale, CA 91204
Procedures Most Often Billed to Medicare
2,415 services · 1,364 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
292 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | Treatment | 93016 |
83 |
| Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report | Treatment | 93351 |
53 |
| Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | Treatment | 93244 |
29 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
22 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
14 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,779 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
78 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
65 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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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.
Related specialists at this location 2
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.
Other cardiovascular diseases in Glendale 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1971 at University of California, Geffen School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 8
Providers in CA 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.