Karen Matsukuma, MD, PHD
NPI 1275716219 · Anatomic Pathology & Clinical Pathology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Matsukuma, MD, PHD is a Anatomic Pathology & Clinical Pathology Physician provider in Sacramento, CA (NPI 1275716219).
Provider details
- NPI number
- 1275716219
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A105075 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,266 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,814 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 127 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 99 | $28 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 71 | $12 |
| Pathology Examination of Specimen During Surgery, First Tissue Block88331 | 60 | $62 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 57 | $83 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-13
- Last updated
- 2020-05-20
- Certified
- 2020-05-20
Frequently asked questions
- What is Karen Matsukuma's NPI number?
- Karen Matsukuma's National Provider Identifier (NPI) is 1275716219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Matsukuma's specialty?
- Karen Matsukuma is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Matsukuma located?
- Karen Matsukuma's practice location on file with NPPES is 4400 V St, Sacramento, CA 95817-1445.
- What is Karen Matsukuma's phone number?
- The practice phone number listed in the NPPES registry for Karen Matsukuma is (916) 734-2525.
- Does Karen Matsukuma accept Medicare?
- Karen Matsukuma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Matsukuma's NPI active?
- Yes — Karen Matsukuma's NPI (1275716219) is active in the NPPES registry as of the last update on 2020-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.