CHRISTOPHER DIRK KEENE MD, PHD
NPI 1104928712
Pathology - Neuropathology in San Diego, CA

Q: What is Christopher Keene's NPI number?

The NPI number for Christopher Keene is 1104928712. It was assigned to this individual provider in the NPPES registry on September 3, 2006.

Q: What is Christopher Keene's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Neuropathology, with taxonomy code 207ZN0500X.

Q: When was this NPI record last updated?

The NPPES record for Christopher Keene was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 03, 2006PECOS EnrolledAccepts Medicare Assignment

93.09/100

CMS Quality Rating

200 W ARBOR DR, SAN DIEGO, CA 92103(800) 926-8273(888) 539-8781 Get Directions Write a Review

NPPES record last updated: March 18, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Christopher Dirk Keene Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER DIRK KEENE MD, PHD (NPI 1104928712) is an individual neuropathology provider in San Diego, California, licensed in California (207254) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1104928712

Entity TypeIndividualMale

Primary Taxonomy207ZN0500X

Provider Legal NameCHRISTOPHER DIRK KEENECredential: MD, PHD

Location Address200 W ARBOR DRSan Diego, CA 92103-9000

Mailing AddressFile 57326Los Angeles, CA 90074-7326 · (800) 926-8273

Phone(800) 926-8273

Fax(888) 539-8781

Sole ProprietorNo

Medical School CMSUniversity Of Minnesota Medical SchoolGraduated 2005

Enumeration DateSeptember 3, 2006

Last NPPES UpdateMarch 18, 2026

NPPES CertifiedMarch 18, 2026

✔ NPI 1104928712 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · NeuropathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZN0500X

Licenses✔ Licensed in CA · 207254✔ Licensed in WA · MD00048817

Definition

A neuropathologist is expert in the diagnosis of diseases of the nervous system and skeletal muscles and functions as a consultant primarily to neurologists and neurosurgeons. The neuropathologist is knowledgeable in the infirmities of humans as they affect the nervous and neuromuscular systems, be they degenerative, infectious, metabolic, immunologic, neoplastic, vascular or physical in nature.

200 W ARBOR DR, San Diego, CA 92103

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1325 9th Ave, Box 359791, room 2EH87Seattle, WA 98104-2420 · Phone (206) 744-3145 · Fax (206) 744-8240

Location 29444 Medical Center DrLA Jolla, CA 92037-1337 · Phone (800) 926-8273 · Fax (888) 539-8781

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher Dirk Keene Md, Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2466503495

PECOS Enrollment IDI20090702000056

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

115 services27 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

55 services28 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

36 services34 patients

Pathology cytologic examination of specimen during surgery, initial site 88333

A pathology cytologic examination during surgery involves taking a small sample of cells from the initial site of concern. This sample is then examined under a microscope by a pathologist to check for any abnormal or disease-causing cells. This helps guide the ongoing surgical procedure.

35 services19 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

31 services20 patients

Pathology examination of specimen during surgery, first tissue block 88331

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

25 services25 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of Washington Medical Ctr

Acute Care Hospitals · Seattle, WA

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number500008

Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County

Emergency services Birthing friendly

Harborview Medical Center

Acute Care Hospitals · Seattle, WA

1/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number500064

Location325 9th AvenueSeattle, WA 98104 · King County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.09/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

73.95

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RAMIN MOTARJEMI M.D.

Internal Medicine (Geriatric Medicine)