DR. KEIR ANDREW BEXAR FOWLER M.D.
NPI 1700991163
Radiology - Diagnostic Radiology in San Diego, CA

Active since August 19, 2006PECOS EnrolledAccepts Medicare Assignment
87.09/100
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: May 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 7, 2026, Jun 14, 2018 (2 updates tracked since 2018).

About Dr. Keir Andrew Bexar Fowler M.d. NPPES

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

DR. KEIR ANDREW BEXAR FOWLER M.D. (NPI 1700991163) is an individual diagnostic radiology provider in San Diego, California, licensed in Alaska (5185) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains 7 additional practice locations, and is a graduate of University Of Washington School Of Medicine (1998).

NPPES Registry Identity

NPI1700991163
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. KEIR ANDREW BEXAR FOWLERCredential: M.D.
Location Address200 W ARBOR DRSan Diego, CA 92103-9000
Mailing AddressFile 57326Los Angeles, CA 90074-0001
Fax(888) 539-8781
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 1998
Enumeration DateAugust 19, 2006
Last NPPES UpdateMay 7, 20262 updates tracked since enumeration
NPPES CertifiedMay 7, 2026
✔ NPI 1700991163 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in AK · 5185✔ Licensed in CA · A81767
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
200 W ARBOR DR, San Diego, CA 92103

Secondary Practice Locations 7

Location 19400 Campus Point DrLA Jolla, CA 92093-1350 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 24250 1st AveSan Diego, CA 92103-2026 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 31650 Cowles StFairbanks, AK 99701 · Phone (907) 458-5660
Location 49300 Campus Point DrLA Jolla, CA 92037-1300 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 56655 Alvarado RdSan Diego, CA 92120-5208 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 61415 Ross AveEl Centro, CA 92243-4306 · Phone (800) 926-8273 · Fax (888) 539-8781
Location 7330 Lewis StSan Diego, CA 92103-2108 · Phone (800) 926-8273 · Fax (888) 539-8781

Other Identifiers 1

MedicaidMD2639AK

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Keir Andrew Bexar Fowler M.d. 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 ID6406749928
PECOS Enrollment IDI20040206000512, I20040514000226, I20160914000350
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.

Medicare Billing Reassignments

6

Medicare enrollment records show Keir Fowler reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Diagnostic Radiology
200 W ARBOR DR
San Diego, CA 92103
  • Reassigned Medicare billing, California enrollment
  • 360 clinicians in this Medicare group
Critical Access
4300 BARTLETT STREET
Homer, AK 99603
  • Reassigned Medicare billing, Alaska enrollment
  • 161 clinicians in this Medicare group
General Acute Care Hospital
4315 DIPLOMACY DR
Anchorage, AK 99508
  • Reassigned Medicare billing, Texas enrollment
  • 1,373 clinicians in this Medicare group
Diagnostic Radiology
1650 COWLES ST
Fairbanks, AK 99701
  • Reassigned Medicare billing, Alaska enrollment
  • 10 clinicians in this Medicare group
Multi-Specialty
1717 W COWLES ST
Fairbanks, AK 99701
  • Reassigned Medicare billing, Texas enrollment
  • 207 clinicians in this Medicare group
Radiology
3419 AIRPORT WAY STE D
Fairbanks, AK 99709
  • Reassigned Medicare billing, Alaska enrollment
  • 9 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 73

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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
274 services239 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
260 services245 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
234 services220 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
193 services185 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
180 services175 patients
Screening mammography 77067
Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.
165 services165 patients

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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$76.87 typical visit price
range $20.62 – $151.42
Typical copayment $19.21 (range $5.15 – $37.85)
Most-billed visit code 99213
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.

87.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality77.43
Promoting Interoperability100
Improvement Activities40
Cost62.86

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.

Internal Medicine (Geriatric Medicine)
200 W ARBOR DR
SAN DIEGO, CA 92103
Hospice, Inpatient
200 W ARBOR DR
SAN DIEGO, CA 92103
Anesthesiology
200 W ARBOR DR
SAN DIEGO, CA 92103
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
Internal Medicine (Infectious Disease)
200 W ARBOR DR
SAN DIEGO, CA 92103
Nurse Practitioner (Psychiatric/Mental Health)
200 W ARBOR DR
SAN DIEGO, CA 92103
Nurse Practitioner
200 W ARBOR DR
SAN DIEGO, CA 92103
Student in an Organized Health Care Education/Training Program
200 W ARBOR DR
SAN DIEGO, CA 92103

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Keir Fowler's NPI number?

The NPI number for Keir Fowler is 1700991163. It was assigned to this individual provider in the NPPES registry on August 19, 2006.

Where is Keir Fowler located?

Keir Fowler practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (800) 926-8273.

What is Keir Fowler's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Keir Fowler enrolled in Medicare?

Yes. Keir Fowler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Keir Fowler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Keir Fowler reassigns Medicare benefits to 6 organizations: Regents Of The University Of California (San Diego, CA), South Peninsula Hospital, Inc. (Homer, AK), Alaska Native Tribal Health Consortium (Anchorage, AK), Radiology Consultants A Professional Corp (Fairbanks, AK), Tanana Chiefs Conference (Fairbanks, AK) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Keir Fowler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Keir Fowler was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.