Mary Keohane, M.D.
NPI 1003922329 · Specialist · Sacramento, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Keohane, M.D. is a Specialist provider in Sacramento, CA (NPI 1003922329).
Provider details
- NPI number
- 1003922329
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- C50535 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
2,033 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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 541 | $28 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 293 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 211 | $35 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 177 | $83 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 157 | $116 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 112 | $95 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-21
- Last updated
- 2008-03-06
Frequently asked questions
- What is Mary Keohane's NPI number?
- Mary Keohane's National Provider Identifier (NPI) is 1003922329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Keohane's specialty?
- Mary Keohane is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mary Keohane located?
- Mary Keohane's practice location on file with NPPES is 3301 C St, Sacramento, CA 95816-3300.
- What is Mary Keohane's phone number?
- The practice phone number listed in the NPPES registry for Mary Keohane is (916) 447-6267.
- Does Mary Keohane accept Medicare?
- Mary Keohane is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Keohane's NPI active?
- Yes — Mary Keohane's NPI (1003922329) is active in the NPPES registry as of the last update on 2008-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.