Provider Profile
Based in Los Angeles, CA, Caitlin O'Neill is listed in the NPI registry under hematology. Caitlin graduated from University of Southern California Keck School of Medicine in 2014. According to Medicare claims data, Caitlin cared for 148 Medicare patients across 231 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
1441 EASTLAKE AVE # NOR3470
Los Angeles, CA 90089
Within Hematology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Bleeding disorders
Blood cancer
Bone marrow disorders
Clotting disorders
Iron disorders
Lymph conditions
Nutritional blood disorders
Organ conditions
Platelet disorders
Protein disorders
Red blood cell disorders
White blood cell disorders
Most searched procedures
Biopsy
Blood treatments
Catheter care
Cellular therapy
Consultation
Infusions
Injections
Lab tests
Medication management
Transplants
231 services · 148 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
81 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
63 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
30 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
23 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
22 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. O'Neill is a hematology in Los Angeles, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “HEMATOLOGY”.
NPI registry
Dr. O'Neill is listed at 1441 EASTLAKE AVE # NOR3470, Los Angeles, CA 90089. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (323) 865-3105. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. O'Neill's National Provider Identifier is 1497174262. 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
Dr. O'Neill attended University of Southern California Keck School of Medicine, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
Dr. O'Neill has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. O'Neill the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Neill. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.