Physician Profile
Karen E. Matsukuma, MD, PhD is a healthcare provider in Sacramento, CA specializing in pathology. Karen trained at University of California, Irvine, California College of Medicine, graduating in 2007. Karen is also listed as specializing in anatomic & clinical pathology. Medicare claims data shows Karen provided 2,266 services to 870 patients. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, special stained specimen slides to examine tissue, initial procedure, and special stained specimen slides to examine tissue, each additional procedure. This provider record is associated with NPI 1275716219.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
4400 V ST
Sacramento, CA 95817
Within 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 & Joints
Autopsy & Forensic
Blood & Metabolism
Blood Disorders
Cancer
Cervical & Gynecologic
Digestive
Digestive System
Endocrine
Genetics
Hormones
Immune System
Infections
Kidney
Liver
Metabolic & Routine Lab
Pregnancy & Fertility
Skin Cancer
Women's Health
Autopsy & Forensic
Blood Tests
Cytology
Cytology & Screening
Genetic & Molecular Tests
Genetics
Immune & Allergy Tests
Infection Testing
Infection Tests
Lab & Blood Tests
Pathology Review
Pregnancy & Fertility
Routine Lab Tests
Tissue Biopsy
2,266 services · 870 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
1,814 | More often than most peers in Pathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
127 | As often as other peers in Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
99 | Less often than most peers in Pathology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
71 | As often as other peers in Pathology |
| Pathology examination of specimen during surgery, first tissue block | Lab test | 88331 |
60 | More often than most peers in Pathology |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
57 | As often as other peers in Pathology |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
24 | Less often than most peers in Pathology |
| Pathology examination of tissue using a microscope, high complexity | Lab test | 88309 |
14 | Less often than most peers in Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Matsukuma is a pathologist in Sacramento, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pathology”.
NPI registry
Dr. Matsukuma is listed at 4400 V St, Sacramento, CA 95817. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (916) 734-2525. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Matsukuma's National Provider Identifier is 1275716219. 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. Matsukuma attended University of California, Irvine, California College of Medicine, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
Dr. Matsukuma has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Matsukuma 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. Matsukuma. If this is you, claiming it is free.
Guide.md
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