Christopher Keene, MD, PHD
NPI 1104928712 · Neuropathology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Keene, MD, PHD is a Neuropathology Physician provider in San Diego, CA (NPI 1104928712).
Provider details
- NPI number
- 1104928712
- Entity type
- Individual
- Primary specialty
- Neuropathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 207254 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
337 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 | 115 | $30 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 55 | $89 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 36 | $38 |
| Pathology Cytologic Examination of Specimen During Surgery, Initial Site88333 | 35 | $67 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 31 | $40 |
| Pathology Examination of Specimen During Surgery, First Tissue Block88331 | 25 | $67 |
Practice location
Mailing address
Additional practice locations (2)
- 9444 Medical Center DrLa Jolla, CA 92037-1337Phone: (800) 926-8273Fax: (888) 539-8781
- 325 9th AveBox 359791, Room 2eh87Seattle, WA 98104-2420Phone: (206) 744-3145Fax: (206) 744-8240
Registry dates
- Enumerated
- 2006-09-03
- Last updated
- 2026-03-18
- Certified
- 2026-03-18
Frequently asked questions
- What is Christopher Keene's NPI number?
- Christopher Keene's National Provider Identifier (NPI) is 1104928712, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Keene's specialty?
- Christopher Keene is listed in the NPPES registry with a primary specialty of Neuropathology Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Keene located?
- Christopher Keene's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Christopher Keene's phone number?
- The practice phone number listed in the NPPES registry for Christopher Keene is (800) 926-8273.
- Does Christopher Keene accept Medicare?
- Christopher Keene is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Keene's NPI active?
- Yes — Christopher Keene's NPI (1104928712) is active in the NPPES registry as of the last update on 2026-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.