ALEXANDER BRYCE WILLIAMS NICULESCU MD
NPI 1164059135
Hospitalist in Santa Monica, CA

Q: What is Alexander Niculescu's NPI number?

The NPI number for Alexander Niculescu is 1164059135. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Q: What is Alexander Niculescu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Active since March 26, 2020PECOS EnrolledAccepts Medicare Assignment

2021 SANTA MONICA BLVD STE 245E, SANTA MONICA, CA 90404(310) 829-8975 Get Directions Write a Review

NPPES record last updated: October 16, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 20, 2024, May 10, 2024, Mar 26, 2020 (3 updates tracked since 2020).

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About Alexander Bryce Williams Niculescu Md NPPES

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

ALEXANDER BRYCE WILLIAMS NICULESCU MD (NPI 1164059135) is an individual hospitalist provider in Santa Monica, California, licensed in California (A187471) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1164059135

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameALEXANDER BRYCE WILLIAMS NICULESCUCredential: MD

Location Address2021 SANTA MONICA BLVD STE 245ESanta Monica, CA 90404-2132

Mailing Address325 N Larchmont Blvd # 145Los Angeles, CA 90004-3011 · (202) 320-5864

Phone(310) 829-8975

Sole ProprietorNo

Medical School CMSOtherGraduated 2020

Enumeration DateMarch 26, 2020

Last NPPES UpdateOctober 16, 20243 updates tracked since enumeration

NPPES CertifiedOctober 16, 2024

✔ NPI 1164059135 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · A187471

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License A187471 (CA)

Also ListedInternal Medicine · Hospice and Palliative MedicineTaxonomy 207RH0002X · License A187471 (CA)

2021 SANTA MONICA BLVD STE 245E, Santa Monica, CA 90404

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Secondary Practice Locations 2

Location 118321 Clark StTarzana, CA 91356-3501 · Phone (818) 881-0800

Location 2325 N Larchmont Blvd # 145Los Angeles, CA 90004-3011 · Phone (202) 320-5864

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

Alexander Bryce Williams Niculescu Md 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 ID8224477914

PECOS Enrollment IDI20240415000815

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

Medicare enrollment records show Alexander Niculescu reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Providence Saint Johns Medical Foundation

0.1 mi

Specialist

2121 SANTA MONICA BLVD
Santa Monica, CA 90404

Reassigned Medicare billing, California enrollment
461 clinicians in this Medicare group

NPI 1770093734 (310) 582-7312

Happy Vitals PC

5.3 mi

Internal Medicine

9461 CHARLEVILLE BLVD UNIT 551
Beverly Hills, CA 90212

Reassigned Medicare billing, California enrollment
4 clinicians in this Medicare group

NPI 1194584078 (310) 230-5984

Southern California Permanente Medical Group

6.0 mi

Health Maintenance Organization

6041 CADILLAC AVE
Los Angeles, CA 90034

Reassigned Medicare billing, California enrollment
13,921 clinicians in this Medicare group

NPI 1043242563 (323) 857-2000

Cedars-Sinai Medical Care Foundation

6.6 mi

Anesthesiology

8700 BEVERLY BLVD STE SB-290
Los Angeles, CA 90048

Reassigned Medicare billing, California enrollment
2,118 clinicians in this Medicare group

NPI 1043826720 (310) 423-1447

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 15

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.

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

Chronic Care Management services involve regular check-ins with healthcare professionals to manage two or more chronic conditions. It includes an additional 20 minutes of clinical staff time per month, directed by a healthcare professional, to ensure optimal health management.

366 services130 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

Chronic care management services involve a healthcare professional directing clinical staff in managing your chronic conditions. This includes the first 20 minutes per month of services like medication management, care coordination, and health monitoring to help improve your health and quality of life.

252 services137 patients

Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional 99484

Care management for behavioral health involves a healthcare professional directing clinical staff to provide you with support for 20 minutes or more. This service can include planning your care, coordinating services, and managing your health conditions to improve your overall well-being.

186 services103 patients

Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment 99453

Remote monitoring of physiologic parameters involves using special equipment to track vital signs like heart rate and blood pressure from a distance. The initial set-up includes installing the device and teaching the patient how to use it correctly for accurate readings.

184 services177 patients

Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service) G0506

This service involves a thorough evaluation of patients needing ongoing care for chronic conditions. It includes creating a tailored care plan, coordinating with healthcare providers, and monitoring progress regularly. The goal is to provide optimal, personalized care for your long-term health needs.

184 services177 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

183 services177 patients

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

123 services68 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

108 services80 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

76 services54 patients

Complex chronic care management services for two or more chronic conditions, each additional 60 minutes of clinical staff time directed by health care professional, per calendar month 99489

Complex chronic care management is a service for patients with multiple chronic conditions. It involves an additional 60 minutes per month of clinical staff time directed by a healthcare professional. This service assists in managing your health conditions effectively.

71 services24 patients

Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 99439

58 services35 patients

Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 99490

55 services43 patients

Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional 99484

38 services35 patients

Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month 99487

Complex chronic care management is a service for patients with two or more long-term health conditions. It involves a healthcare professional directing clinical staff in providing care for the first 60 minutes each month. This helps manage your health conditions effectively.

25 services24 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

14 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90404 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

Other Providers at the Same Location NPPES 4

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

JEFF D SUNG MD

Emergency Medicine

2021 SANTA MONICA BLVD STE 245E
SANTA MONICA, CA 90404

Los Angeles County (310) 829-8975

DR. MICHAEL IAN FUCHS M.D.

Internal Medicine

2021 SANTA MONICA BLVD STE 245E
SANTA MONICA, CA 90404

Los Angeles County (310) 829-0199

DR. BRIAN D MADDEN M.D.

Family Medicine (Hospice and Palliative Medicine)

2021 SANTA MONICA BLVD STE 245E
SANTA MONICA, CA 90404

Los Angeles County (310) 829-8975

KAREN HSU PATTERSON MSN, RN, FNP-C

Nurse Practitioner

2021 SANTA MONICA BLVD STE 245E
SANTA MONICA, CA 90404

Los Angeles County (310) 829-8975

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 Alexander Niculescu's NPI number?

The NPI number for Alexander Niculescu is 1164059135. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Where is Alexander Niculescu located?

Alexander Niculescu practices at 2021 Santa Monica Blvd Ste 245E, Santa Monica, CA 90404. The listed phone number is (310) 829-8975.

What is Alexander Niculescu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Alexander Niculescu enrolled in Medicare?

Yes. Alexander Niculescu 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 Alexander Niculescu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Niculescu reassigns Medicare benefits to 4 organizations: Providence Saint Johns Medical Foundation (Santa Monica, CA), Happy Vitals PC (Beverly Hills, CA), Southern California Permanente Medical Group (Los Angeles, CA) and Cedars-Sinai Medical Care Foundation (Los Angeles, CA). 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 Alexander Niculescu'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 Alexander Niculescu was last updated on October 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.