Courtnay Willcox Bloomer, M.D.
Neuroradiology Physician · Walnut Creek, CA
Courtnay Willcox Bloomer, M.D. is a neuroradiology physician with a practice address in Walnut Creek, California, and NPI 1093764565, issued on May 10, 2006. Check the license (California A103127, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Courtnay Willcox Bloomer
- Credential
- M.D.
- Primary taxonomy
- Neuroradiology Physician 2085N0700X
- License numbers
- A103127 CA
2014-01400 NC
98050 FL
Self-reported in NPPES; status is on the state search - Practice location
- 2125 Oak Grove RD Ste 200, Walnut Creek, CA 94598
- Phone
- (252) 967-1509
- Enumerated
- May 10, 2006
- Record last updated
- Jun 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20090522000127); may accept Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2003
- Entity
- Type 1 · individual
8 nearest neuroradiology physician records → All 221 in California → Look up another NPI →
Also registered at 2125 Oak Grove RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Courtnay Willcox Bloomer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103127Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 6 group practices
- Bay Imaging Consultants Medical Group IncVacaville, CA
- County OF Santa ClaraSan Jose, CA
- John Muir Magnetic Imaging CenterWalnut Creek, CA
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA
- Magnetic Imaging Affiliates LLCOakland, CA
- Queens University Medical GroupHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Courtnay Willcox Bloomer among 221 neuroradiology physician records in California
Courtnay Willcox Bloomer, M.D. is one of 221 neuroradiology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 62% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2003 · median 2006 among the 172 with a school on file
- Record last updated2024 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085N0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neuroradiology Physician providers in California
There are 221 neuroradiology physician records in California.
All 221 in California → Every provider in Walnut Creek → Neuroradiology Physician nationwide →
The 8 neuroradiology physician records with the nearest ZIP codes
- Lakshminarayan SrinivasanOakland, CA 946021174766802
- Hannu Huhdanpaa, M.D., M.SC.Oakland, CA 946091780903773
- Andrew Fenster, MDOakland, CA 946111932605193
- Kevin Terashima, MDOakland, CA 946111598269854
- John Kaufman, M.D.San Leandro, CA 945771780858761
- Peter Palka, D.O.Fairfield, CA 945341386670149
- Bradley Glenn, MDDanville, CA 945261699701680
- Imilce Castro Paz, MDStanford, CA 943051457810442
Common questions
What is Courtnay Willcox Bloomer, M.D.'s NPI number?
Courtnay Willcox Bloomer, M.D.'s National Provider Identifier (NPI) is 1093764565, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Courtnay Willcox Bloomer, M.D. located?
The NPPES record lists a practice address at 2125 Oak Grove RD Ste 200, Walnut Creek, CA, 94598. Phone: (252) 967-1509. Providers update this record themselves, so call before visiting.
How can I verify Courtnay Willcox Bloomer, M.D.'s license?
NPPES lists California license number A103127, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Courtnay Willcox Bloomer, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.