Alexander Bryce Williams Niculescu, MD
Hospitalist Physician · Santa Monica, CA
Alexander Bryce Williams Niculescu, MD is a hospitalist physician with a practice address in Santa Monica, California, and NPI 1164059135, issued on Mar 26, 2020. Check the license (California A187471, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Bryce Williams Niculescu
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A187471 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2021 Santa Monica Blvd Ste 245E, Santa Monica, CA 90404
- Phone
- (310) 829-8975
- Enumerated
- Mar 26, 2020
- Record last updated
- Oct 16, 2024
- Medicare enrollment
- Enrolled (PECOS I20240415000815); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 2021 Santa Monica Blvd Ste 245E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alexander Bryce Williams Niculescu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A187471Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average hospitalist physician in 2024
159 Medicare Part D claims for 110 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Ibuprofen27 claims
- Pantoprazole Sodium16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 4 group practices
- Cedars-Sinai Medical Care FoundationTarzana, CA
- Happy Vitals PCLos Angeles, CA
- Providence Saint Johns Medical FoundationSanta Monica, CA
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Bryce Williams Niculescu among 3,099 hospitalist physician records in California
Alexander Bryce Williams Niculescu, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 85% of them.
- NPI issued2020 · 85% of these records are older, 10% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2020 · median 2010 among the 2,505 with a school on file
- Record last updated2024 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
96 hospitalist physician records list a practice address in Santa Monica
They are 96 of the 5,151 NPPES records with a practice address in Santa Monica, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Santa Monica → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Spencer Adams, MDSanta Monica, CA 904041487688198
- Nathan Cox, M.D.Santa Monica, CA 904041912173378
- Erin Dowling, M.D.Santa Monica, CA 904041568645901
- Retha GoodglickSanta Monica, CA 904041396994034
- Adela Greeley, M.D.Santa Monica, CA 904041205968492
- David Kagan, MDSanta Monica, CA 904041992965768
- Russell KerbelSanta Monica, CA 904041164699203
- Mike La, M.D.Santa Monica, CA 904041790949535
Common questions
What is Alexander Bryce Williams Niculescu, MD's NPI number?
Alexander Bryce Williams Niculescu, MD's National Provider Identifier (NPI) is 1164059135, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Bryce Williams Niculescu, MD located?
The NPPES record lists a practice address at 2021 Santa Monica Blvd Ste 245E, Santa Monica, CA, 90404. Phone: (310) 829-8975. Providers update this record themselves, so call before visiting.
How can I verify Alexander Bryce Williams Niculescu, MD's license?
NPPES lists California license number A187471, 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.
How much does Alexander Bryce Williams Niculescu, MD prescribe under Medicare Part D?
In 2024, Alexander Bryce Williams Niculescu, MD had 159 Medicare Part D claims for 110 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.