Physician Profile
Derek K. Marsee, MD, PhD practices anatomic & clinical pathology in Sacramento, CA. Derek is a 2005 graduate of Ohio State University College of Medicine. Medicare claims data shows Derek provided 7,296 services to 5,048 patients. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, detection test for candida species (yeast), amplified probe technique, and special stained specimen slides to examine tissue, each additional procedure.
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.
3301 C STREET SUITE 200-E
Sacramento, CA 95816
Within Anatomic & Clinical Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Autoimmune & Joint
Blood cancer
Blood chemistry
Blood Disorders
Blood disorders
Cancer & Tumors
Cervical & Women's Health
Cervical Health
Digestive pathology
Digestive System
Hormones
Hormones & Metabolism
Infections
Infectious disease
Kidney & Urinary
Liver pathology
Prostate
Skin
Skin pathology
Urine & kidney
Biopsy & Tissue Testing
Blood chemistry
Cancer & Genetic Testing
Cancer screening
Cardiac testing
Cervical & Women's Health
Fertility testing
Hormone testing
Immunology
Infection & Microbiology Tests
Infectious disease
Inflammation testing
Pathology Consultations
Post-Mortem & Forensic
Routine blood testing
Routine Blood Tests
Specialty Lab Panels
Tissue biopsy
Toxicology
Transfusion testing
Urine testing
7,296 services · 5,048 patients · 24 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
3,689 | More than most peers in Anatomic & Clinical Pathology |
| Detection test for candida species (yeast), amplified probe technique | Lab test | 87481 |
681 | As often as other peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
542 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
425 | More than most peers in Anatomic & Clinical Pathology |
| Detection test by nucleic acid for trichomonas vaginalis (genital parasite), amplified probe technique | Lab test | 87661 |
341 | More often than most peers in Anatomic & Clinical Pathology |
| Measurement of rna of bacteria in vaginal fluid specimen | Lab test | 81513 |
341 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
251 | More than most peers in Anatomic & Clinical Pathology |
| Cell examination of urine, manual | Lab test | 88120 |
210 | More often than most peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
181 | More than most peers in Anatomic & Clinical Pathology |
| Antibody evaluation, each additional single antibody stain procedure | Lab test | 88350 |
116 | As often as other peers in Anatomic & Clinical Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Marsee is an anatomic & clinical pathology in Sacramento, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Marsee is listed at 3301 C Street Suite 200-E, Sacramento, CA 95816. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (916) 447-6267. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Marsee's National Provider Identifier is 1952592743. 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. Marsee attended Ohio State University College of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
Dr. Marsee has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Marsee 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. Marsee. 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.