DR. RAFFI TACHDJIAN M.D.
NPI 1447376454
Allergy & Immunology in Santa Monica, CA

NPI Status: Active since March 21, 2007

Contact Information

1301 20TH ST STE 380
SANTA MONICA, CA
ZIP 90404
Phone: (310) 998-0060
Fax: (310) 998-0063

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  • Individual
  • Male
  • Years of Experience 25
  • Allergy & Immunology
  • May Accept Medicare Approved Payment
  • PECOS Enrolled
  • CLIA Number: 05D2107990
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 01-25-2026

About RAFFI TACHDJIAN

This page provides the complete NPI Profile along with additional information for Raffi Tachdjian, a provider established in Santa Monica, California with a medical specialization in Allergy & Immunology and more than 25 years of experience. He graduated from Morehouse School Of Medicine in 2001. The healthcare provider is registered in the NPI registry with number 1447376454 assigned on March 2007. The practitioner's primary taxonomy code is 207K00000X with license number A88034 (CA). The provider is registered as an individual and his NPI record was last updated 8 years ago.

NPI
1447376454
Provider Name
DR. RAFFI TACHDJIAN M.D.
Gender
Male
Entity Type
Individual
Location Address
1301 20TH ST STE 380 SANTA MONICA, CA 90404
Location Phone
(310) 998-0060
Location Fax
(310) 998-0063
Mailing Address
1301 20TH ST STE 380 SANTA MONICA, CA 90404
Mailing Phone
(310) 998-0060
Mailing Fax
(310) 998-0063
Medical School Name
MOREHOUSE SCHOOL OF MEDICINE
Graduation Year
2001
Is Sole Proprietor?
No
Enumeration Date
03-21-2007
Last Update Date
07-02-2018
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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

Allergy & Immunology

Taxonomy Code
207K00000X
Type
Allopathic & Osteopathic Physicians
License No.
A88034
License State
CA
Taxonomy Description
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune 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)
12080P0201XAllopathic & Osteopathic Physicians

Pediatrics
Pediatric Allergy/Immunology

A88034 (CA)

Medicare Participation & PECOS Enrollment Status

Raffi Tachdjian is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.

Raffi Tachdjian 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: 2163529926

    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: I20070514000329

    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? Maybe

    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-Other DME (DE017N)

    Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) (HCPCS:A4221)

    6 DME suppliers used 120 Medicare Claims 338 Services Paid

  • DME-Other DME (DE000N)

    Ambulatory infusion pump, mechanical, reusable, for infusion 8 hours or greater (HCPCS:E0779)

    4 DME suppliers used 18 Medicare Claims 18 Services Paid

  • DME-Other DME (DE000N)

    Supplies for external non-insulin drug infusion pump, syringe type cartridge, sterile, each (HCPCS:K0552)

    6 DME suppliers used 117 Medicare Claims 406 Services Paid

Unknown

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin (cuvitru), 100 mg (HCPCS:J1555)

    3 DME suppliers used 44 Medicare Claims 14500 Services Paid

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin (xembify), 100 mg (HCPCS:J1558)

    1 DME suppliers used 24 Medicare Claims 9600 Services Paid

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin (hizentra), 100 mg (HCPCS:J1559)

    4 DME suppliers used 58 Medicare Claims 23940 Services Paid

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (HCPCS:J1569)

    6 DME suppliers used 31 Medicare Claims 3750 Services Paid

  • Treatment-Injections and Infusions (nononcologic) (RI008N)

    Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mg (HCPCS:J1599)

    1 DME suppliers used 11 Medicare Claims 760 Services Paid

  • Treatment-Chemotherapy (RH012N)

    Services, supplies and accessories used in the home under the medicare intravenous immune globulin (ivig) demonstration (HCPCS:Q2052)

    4 DME suppliers used 23 Medicare Claims 34 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.

Established patient office or other outpatient visit, 10-19 minutes

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

This service was performed 362 times for 40 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 126 times for 41 patients

Established patient office or other outpatient visit, 30-39 minutes

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

This service was performed 174 times for 95 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 100 times for 40 patients

Injection of drug or substance under skin or into muscle

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

This service was performed 415 times for 12 patients

New patient office or other outpatient visit, 60-74 minutes

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

This service was performed 66 times for 66 patients

Professional service for multiple injections of allergen

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

This service was performed 398 times for 39 patients

Professional service for preparation and provision of 1 or more antigens

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

This service was performed 2,260 times for 38 patients

Professional service for single injection of allergen

A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.

This service was performed 75 times for 12 patients

Test for allergy using allergenic extract

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

This service was performed 6,065 times for 59 patients

Test for allergy using allergenic extract injected into skin

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

This service was performed 719 times for 43 patients

Test to measure expiratory airflow and volume

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

This service was performed 16 times for 12 patients

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
05D2107990
Facility Type
Physician Office
Certificate Effective Date
January 26, 2024
Certificate Expiration Date
January 25, 2026
Laboratory Director
RAFFI TACHDJIAN
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Raffi Tachdjian to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1447376454, 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
4
Unchanged
Pos 3
4
Doubled → 8
Pos 4
7
Unchanged
Pos 5
3
Doubled → 6
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
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 4 → 8 3 → 6 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 8 + 7 + 6 + 7 + 1 + 2 + 4 + 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 1447376454.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Allergy & Immunology (Allergy)
1301 20TH ST STE 380
SANTA MONICA, CA 90404

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447376454, enumerated as an "individual" on March 21, 2007.

The provider is located at 1301 20TH ST STE 380 SANTA MONICA, CA 90404 and the phone number is (310) 998-0060.

Allergy & Immunology with taxonomy code 207K00000X.