DR. BARRY MICHAEL CZEISLER M.D.
NPI 1134379654
Psychiatry & Neurology - Neurocritical Care in Torrance, CA

NPI Status: Active since September 19, 2008

Contact Information

4101 TORRANCE BLVD
TORRANCE, CA
ZIP 90503
Phone: (310) 303-6833
Fax: (310) 303-6834

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NPPES record last updated: September 17, 2021. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Record update history: Sep 17, 2021, Mar 17, 2021, Mar 5, 2019 (3 updates tracked since 2019).

  • Individual
  • Male
  • Years of Experience 19
  • Psychiatry & Neurology
  • Neurocritical Care
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About BARRY CZEISLER

This page provides the complete NPI Profile along with additional information for Barry Czeisler, a provider established in Torrance, California with a medical specialization in Psychiatry & Neurology, focusing in neurocritical care and more than 19 years of experience. He graduated from Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University in 2008. The healthcare provider is registered in the NPI registry with number 1134379654 assigned on September 2008. The practitioner's primary taxonomy code is 2084A2900X with license number C172500 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1134379654
Provider Name
DR. BARRY MICHAEL CZEISLER M.D.
Gender
Male
Entity Type
Individual
Location Address
4101 TORRANCE BLVD TORRANCE, CA 90503
Location Phone
(310) 303-6833
Location Fax
(310) 303-6834
Mailing Address
10810 VIA VERONA ST LOS ANGELES, CA 90077
Mailing Phone
(347) 266-9990
Medical School Name
CLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY
Graduation Year
2008
Is Sole Proprietor?
No
Enumeration Date
09-19-2008
Last Update Date
09-17-2021
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Psychiatry & Neurology Neurocritical Care

Taxonomy Code
2084A2900X
Type
Allopathic & Osteopathic Physicians
License No.
C172500
License State
CA
Taxonomy Description
The medical subspecialty of Neurocritical Care is devoted to the comprehensive, multisystem care of the critically-ill neurological patient. Like other intensivists, the neurointensivist generally assumes the primary role for coordinating the care of his or her patients in the ICU, both the neurological and medical management of the patient. They may also provide consultative services for these patients as requested within the health system.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12084A2900XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurocritical Care

265862 (NY)
22084N0400XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurology

C172500 (CA)
32084N0400XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurology

265862 (NY)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
03500112MEDICAID (05)NY 

Medicare Participation & PECOS Enrollment Status

Barry Czeisler is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Barry Czeisler is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME) and a Home Health Agency (HHA).

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9739324781

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20211001002528

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: No

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Critical care, first 30-74 minutes

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

This service was performed 135 times for 59 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 16 times for 16 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

This service was performed 34 times for 29 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 84 times for 51 patients

Reviews for DR. BARRY MICHAEL CZEISLER M.D.

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NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1134379654, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
1
Unchanged
Pos 3
3
Doubled → 6
Pos 4
4
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
6
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 3 → 6 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 6 + 4 + 6 + 7 + 1 + 8 + 6 + 1 + 0 + 24 = 66

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1134379654.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pediatrics (Neonatal-Perinatal Medicine)
4101 TORRANCE BLVD
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Pediatrics (Neonatal-Perinatal Medicine)
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Emergency Medicine
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Emergency Medicine
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Family Medicine
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Emergency Medicine
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Emergency Medicine (Emergency Medical Services)
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TORRANCE, CA 90503
Emergency Medicine (Emergency Medical Services)
4101 TORRANCE BLVD, EM DEPT
TORRANCE, CA 90503
Emergency Medicine
4101 TORRANCE BLVD, EM DEPT
TORRANCE, CA 90503
Anesthesiology
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Emergency Medicine (Pediatric Emergency Medicine)
4101 TORRANCE BLVD
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Anesthesiology
4101 TORRANCE BLVD
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Anesthesiology
4101 TORRANCE BLVD
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General Acute Care Hospital
4101 TORRANCE BLVD
TORRANCE, CA 90503
Anesthesiology
4101 TORRANCE BLVD
TORRANCE, CA 90503
Anesthesiology
4101 TORRANCE BLVD
TORRANCE, CA 90503
Emergency Medicine
4101 TORRANCE BLVD
TORRANCE, CA 90503
Emergency Medicine
4101 TORRANCE BLVD
TORRANCE, CA 90503
Anesthesiology
4101 TORRANCE BLVD
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Anesthesiology
4101 TORRANCE BLVD
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Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134379654, enumerated as an "individual" on September 19, 2008.

The provider is located at 4101 TORRANCE BLVD TORRANCE, CA 90503 and the phone number is (310) 303-6833.

Psychiatry & Neurology with taxonomy code 2084A2900X and a focus in Neurocritical Care.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.