MICHAEL ARNSTEIN M.D.
NPI 1821000100
Specialist in Torrance, CA

NPI Status: Active since August 13, 2006

Contact Information

22930 CRENSHAW BLVD STE D
TORRANCE, CA
ZIP 90505
Phone: (310) 530-4200
Fax: (310) 530-1562

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  • Individual
  • Male
  • Years of Experience 40
  • Specialist
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MICHAEL ARNSTEIN

This page provides the complete NPI Profile along with additional information for Michael Arnstein, a provider established in Torrance, California with a medical specialization in Specialist and more than 40 years of experience. He graduated from Vanderbilt University School Of Medicine in 1987. The healthcare provider is registered in the NPI registry with number 1821000100 assigned on August 2006. The practitioner's primary taxonomy code is 174400000X with license number G80314 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1821000100
Provider Name
MICHAEL ARNSTEIN M.D.
Gender
Male
Entity Type
Individual
Location Address
22930 CRENSHAW BLVD STE D TORRANCE, CA 90505
Location Phone
(310) 530-4200
Location Fax
(310) 530-1562
Mailing Address
22930 CRENSHAW BLVD STE D TORRANCE, CA 90505
Mailing Phone
(310) 530-4200
Mailing Fax
(310) 530-1562
Medical School Name
VANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
1987
Is Sole Proprietor?
Yes
Enumeration Date
08-13-2006
Last Update Date
07-08-2007
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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

Specialist

Taxonomy Code
174400000X
Type
Other Service Providers
License No.
G80314
License State
CA
Taxonomy Description
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

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
E58521MEDICARE UPIN (02)CA 
G80314MEDICARE ID-TYPE UNSPECIFIED (04)CA 
00G803140MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Michael Arnstein 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.

Michael Arnstein 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), a Home Health Agency (HHA) and Power Mobility Devices.

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: 8527110352

    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: I20090709000040

    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: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Durable Medical Equipment

  • DME-Medical/Surgical Supplies (DA000N)

    Tape, waterproof, per 18 square inches (HCPCS:A4452)

    2 DME suppliers used 18 Medicare Claims 1440 Services Paid

  • DME-Medical/Surgical Supplies (DA023N)

    Gauze, non-impregnated, non-sterile, pad size 16 sq. in. or less, without adhesive border, each dressing (HCPCS:A6216)

    1 DME suppliers used 12 Medicare Claims 900 Services Paid

  • DME-Medical/Surgical Supplies (DA023N)

    Gauze, non-impregnated, sterile, pad size 16 sq. in. or less, without adhesive border, each dressing (HCPCS:A6402)

    2 DME suppliers used 14 Medicare Claims 940 Services Paid

  • DME-Medical/Surgical Supplies (DA023N)

    Conforming bandage, non-elastic, knitted/woven, sterile, width greater than or equal to three inches and less than five inches, per yard (HCPCS:A6446)

    2 DME suppliers used 11 Medicare Claims 1211 Services Paid

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.

Complicated repair of wound of eyelids, nose, ears, or lip, 2.6-7.5 cm

This procedure involves repairing a wound on your eyelids, nose, ears, or lip that is between 2.6 and 7.5 cm long. It's considered complicated due to the location and size. The doctor will clean, treat, and stitch the wound to promote healing.

This service was performed 55 times for 42 patients

Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm

This procedure involves the complex repair of a wound in areas like the forehead, cheeks, chin, mouth, neck, underarms, hands, or feet. The wound size ranges from 2.6-7.5 cm. The process includes cleaning, removing damaged tissue, and stitching the wound for proper healing.

This service was performed 112 times for 90 patients

Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm

This is a procedure to repair a complex wound on your scalp, arm, or leg that is 2.6-7.5 cm long. It involves cleaning, removing damaged tissue, and stitching the wound to promote healing. It's performed under local or general anesthesia.

This service was performed 88 times for 74 patients

Complicated repair of wound of trunk, 2.6-7.5 cm

This service involves the intricate repair of a wound on your body's main structure, between your neck and limbs. The wound measures 2.6-7.5 cm. The procedure includes deep-layer stitching and may involve repairing damaged tissue.

This service was performed 43 times for 39 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 295 times for 52 patients

Established patient office or other outpatient visit, 20-29 minutes

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

This service was performed 40 times for 12 patients

Initial hospital inpatient care per day, typically 70 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 14 times for 14 patients

Mastectomy

A mastectomy is a surgical procedure that involves the removal of all or part of the breast tissue. This is often done to treat or prevent conditions related to abnormal cell growth. There are different types, ranging from removing only the breast tissue to also removing nearby structures. The approach depends on individual health circumstances.

This service was performed for 1-10 patients

Melanoma (skin cancer) excision

Melanoma excision is a procedure where a surgeon removes melanoma, a type of skin cancer, and some surrounding healthy tissue. Local anesthesia is applied to numb the area. The goal is to completely remove the cancer and prevent its spread. Healing time varies.

This service was performed for 312 patients

New patient office or other outpatient visit, 30-44 minutes

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

This service was performed 36 times for 36 patients

Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm

This procedure involves the surgical removal of a cancerous skin growth on the body, arms, or legs. The growth is between 1.1 and 2.0 cm in size. The goal is to eliminate cancer cells and prevent them from spreading to other parts of the body.

This service was performed 17 times for 16 patients

Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm

This procedure involves the removal of a cancerous skin growth, between 2.1 and 3.0 cm, from the body, arms, or legs. The area is numbed, then the growth is carefully cut out. The goal is to eliminate all cancer cells while minimizing scarring.

This service was performed 88 times for 74 patients

Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm

This procedure involves the surgical removal of a cancerous skin growth on the face, ears, eyelids, nose, lips, or mouth. The growth is between 1.1-2.0 cm in size. This is done to prevent the cancer from spreading and to restore health.

This service was performed 22 times for 18 patients

Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 2.1-3.0 cm

This procedure involves the careful removal of a cancerous growth on the face, ears, eyelids, nose, lips, or mouth that measures between 2.1 to 3.0 cm. The goal is to eliminate the cancer while preserving surrounding healthy tissue.

This service was performed 99 times for 80 patients

Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 2.1-3.0 cm

This procedure involves removing a cancerous growth on the scalp, neck, hands, or feet that measures between 2.1 and 3.0 cm. The process includes numbing the area, excising the growth, and then stitching the wound for healing. The aim is to eliminate cancer cells and prevent spread.

This service was performed 33 times for 29 patients

Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 3.1-4.0 cm

This procedure involves the surgical removal of a cancerous growth on the scalp, neck, hands, or feet. The size of the growth is between 3.1 and 4.0 cm. The aim is to eliminate the cancer and prevent its spread. This is done under local or general anesthesia.

This service was performed 17 times for 17 patients

Removal of muscle and/or tissue, 20.0 sq cm or less

This procedure involves the surgical removal of a specified area (20.0 sq cm or less) of muscle and/or tissue. It's typically done to treat conditions like tumors, infections, or injuries. Local or general anesthesia ensures comfort. Recovery time varies.

This service was performed 28 times for 12 patients

Removal of noncancer skin growth of body, arms, or legs, 2.1-3.0 cm

This is a procedure where a noncancerous skin growth, sized 2.1-3.0 cm, on the body, arms, or legs is removed. It's typically done under local anesthesia. The process involves cutting out the growth and stitching the skin back together. The aim is to eliminate discomfort and prevent potential health issues.

This service was performed 12 times for 11 patients

Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm

This procedure involves the removal of a noncancerous skin growth on your face, ears, eyelids, nose, lips, or mouth that measures between 1.1-2.0 cm. It's a safe process to enhance your comfort and appearance.

This service was performed 13 times for 11 patients

Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 2.1-3.0 cm

This procedure involves the careful removal of a noncancerous skin growth on the face, ears, eyelids, nose, lips, or mouth. The size of the growth is between 2.1 to 3.0 centimeters. The process is done under local anesthesia to minimize discomfort.

This service was performed 12 times for 11 patients

Removal of skin and tissue, 20.0 sq cm or less

This procedure involves the surgical removal of skin and tissue, up to 20.0 square cm in size. It's often performed to treat conditions like skin cancer or to remove moles, warts, and other skin lesions. The area is numbed and the unwanted tissue is carefully cut out.

This service was performed 57 times for 27 patients

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NPI 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 1821000100, we treat the final digit (0) 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 40. The final step is to find the difference between that total and the next multiple of ten (40 - 40 = 0).

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
8
Unchanged
Pos 3
2
Doubled → 4
Pos 4
1
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
1
Unchanged
Pos 9
0
Doubled → 0
Check
0
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 2 → 4 0 → 0 0 → 0 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 0 + 0 + 0 + 1 + 0 + 24 = 40

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

The next multiple of ten after 40 is 40. The difference is the calculated check digit.

40 - 40 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1821000100.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Specialist
22930 CRENSHAW BLVD STE D
TORRANCE, CA 90505
Specialist
22930 CRENSHAW BLVD STE D
TORRANCE, CA 90505
Specialist
22930 CRENSHAW BLVD STE D
TORRANCE, CA 90505
Specialist
22930 CRENSHAW BLVD STE D
TORRANCE, CA 90505
Specialist
22930 CRENSHAW BLVD STE D
TORRANCE, CA 90505

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821000100, enumerated as an "individual" on August 13, 2006.

The provider is located at 22930 CRENSHAW BLVD STE D TORRANCE, CA 90505 and the phone number is (310) 530-4200.

Specialist with taxonomy code 174400000X.

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