Physician Profile
Marnin A. Merrick, MD practices hematology & oncology in New Orleans, LA. Marnin is also listed as specializing in radiation oncology. According to Medicare claims data, Marnin cared for 186 Medicare patients across 569 services. The services billed most often include ct guidance for insertion of radiation therapy fields, radiation treatment management, 5 treatment sessions, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1430 TULANE AVE SL-68
New Orleans, LA 70112
831 S Broadway
Minot, ND 58701
2305 37th Ave SW
Minot, ND 58701
Within Hematology and Oncology 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
Advanced Cancers
Blood & Lymph Disorders
Blood Cancers
Blood Disorders
Blood disorders
Bone & Soft Tissue Cancers
Digestive Cancers
Endocrine Cancers
Endocrine tumors
Gastrointestinal cancer
General oncology
Genetic Blood Disorders
Gynecologic cancer
Gynecologic Cancers
Head & Neck Cancers
Head and neck cancer
Neurologic Cancers
Oncologic emergencies
Ophthalmologic oncology
Skin cancer
Skin Cancers
Urologic Cancers
Most searched procedures
Biopsies & Diagnostics
Blood disorder care
Cancer Therapies
Cancer therapy
Cellular Therapies
Consultations
Diagnostic testing
Hematology Treatments
Imaging
Infusions
Interventional oncology
Supportive Cancer Care
Supportive cancer care
Surgical & Vascular Access
Testing & Genetics
Vascular access care
569 services · 186 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
336 | |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
66 | |
| Calculation of radiation therapy dose | Imaging | 77300 |
35 | |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
30 | |
| Complex radiation therapy planning | Imaging | 77263 |
12 | |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
58 | |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
32 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Merrick is a cancer specialist in New Orleans, LA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Hematology & Oncology”.
NPI registry
Dr. Merrick is listed at 1430 Tulane Ave Sl-68, New Orleans, LA 70112. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (504) 988-6060. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Merrick's National Provider Identifier is 1114132818. 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. Merrick has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Dr. Merrick performs imaging including ct guidance for insertion of radiation therapy fields and radiation treatment management, 5 treatment sessions, alongside routine visits and testing. 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. Merrick. 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.