DR. LINDA ETHEL TSANG M.D.
NPI 1275581001
Specialist in Covina, CA

NPI Status: Active since May 04, 2006

Contact Information

420 W ROWLAND ST
COVINA, CA
ZIP 91723
Phone: (626) 251-1559

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  • Individual
  • Female
  • Years of Experience 31
  • Specialist
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About LINDA TSANG

This page provides the complete NPI Profile along with additional information for Linda Tsang, a provider established in Covina, California with a medical specialization in Specialist and more than 31 years of experience. She graduated from Medical College Of Pennsylvania in 1995. The healthcare provider is registered in the NPI registry with number 1275581001 assigned on May 2006. The practitioner's primary taxonomy code is 174400000X with license number A61696 (CA). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI
1275581001
Provider Name
DR. LINDA ETHEL TSANG M.D.
Gender
Female
Entity Type
Individual
Location Address
420 W ROWLAND ST COVINA, CA 91723
Location Phone
(626) 251-1559
Mailing Address
PO BOX 35380 LAS VEGAS, NV 89133
Mailing Phone
(702) 579-3203
Medical School Name
MEDICAL COLLEGE OF PENNSYLVANIA
Graduation Year
1995
Is Sole Proprietor?
No
Enumeration Date
05-04-2006
Last Update Date
01-13-2026
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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.
A61696
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
00A616960MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Linda Tsang 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.

Linda Tsang 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: 1557328333

    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: I20041213001085

    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-Other DME (DE001N)

    Tubing with integrated heating element for use with positive airway pressure device (HCPCS:A4604)

    6 DME suppliers used 15 Medicare Claims 15 Services Paid

  • DME-Other DME (DE000N)

    Administration set, with small volume nonfiltered pneumatic nebulizer, disposable (HCPCS:A7003)

    3 DME suppliers used 19 Medicare Claims 38 Services Paid

  • DME-Other DME (DE001N)

    Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap (HCPCS:A7034)

    6 DME suppliers used 17 Medicare Claims 17 Services Paid

  • DME-Other DME (DE001N)

    Headgear used with positive airway pressure device (HCPCS:A7035)

    7 DME suppliers used 15 Medicare Claims 15 Services Paid

  • DME-Other DME (DE001N)

    Filter, disposable, used with positive airway pressure device (HCPCS:A7038)

    8 DME suppliers used 19 Medicare Claims 109 Services Paid

  • DME-Other DME (DE001N)

    Water chamber for humidifier, used with positive airway pressure device, replacement, each (HCPCS:A7046)

    7 DME suppliers used 11 Medicare Claims 11 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)

    2 DME suppliers used 51 Medicare Claims 52 Services Paid

  • DME-Oxygen and Supplies (DC000N)

    Portable oxygen contents, gaseous, 1 month's supply = 1 unit (HCPCS:E0443)

    1 DME suppliers used 13 Medicare Claims 13 Services Paid

  • DME-Other DME (DE005N)

    Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) (HCPCS:E0466)

    2 DME suppliers used 24 Medicare Claims 24 Services Paid

  • DME-Other DME (DE000N)

    Nebulizer, with compressor (HCPCS:E0570)

    2 DME suppliers used 29 Medicare Claims 29 Services Paid

  • DME-Other DME (DE000N)

    Respiratory suction pump, home model, portable or stationary, electric (HCPCS:E0600)

    1 DME suppliers used 11 Medicare Claims 11 Services Paid

  • DME-Other DME (DE001N)

    Continuous positive airway pressure (cpap) device (HCPCS:E0601)

    1 DME suppliers used 23 Medicare Claims 23 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)

    4 DME suppliers used 67 Medicare Claims 68 Services Paid

  • DME-Oxygen and Supplies (DC002N)

    Portable oxygen concentrator, rental (HCPCS:E1392)

    3 DME suppliers used 22 Medicare Claims 22 Services Paid

  • DME-Other DME (DE000N)

    Pharmacy dispensing fee for inhalation drug(s); per 30 days (HCPCS:Q0513)

    7 DME suppliers used 34 Medicare Claims 34 Services Paid

Drugs Administered Through DME

  • DME-Drugs Administered Through DME (DG006N)

    Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme (HCPCS:J7620)

    6 DME suppliers used 32 Medicare Claims 3630 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.

Administration of influenza virus vaccine

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

This service was performed 33 times for 33 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

This service was performed 33 times for 33 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 214 times for 128 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 60 times for 49 patients

Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage

The quadrivalent inactivated influenza vaccine is a shot given to protect against four strains of the flu virus. This 0.5 ml dosage helps your body develop immunity to the virus. It's an important step in preventing flu-related complications.

This service was performed 30 times for 30 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 15 times for 15 patients

New patient office or other outpatient visit, 45-59 minutes

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

This service was performed 13 times for 13 patients

Screening mammography

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

This service was performed 15 times for 15 patients

X-ray of chest, 2 views

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

This service was performed 24 times for 20 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 1275581001, we treat the final digit (1) 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

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
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
0
Unchanged
Pos 9
0
Doubled → 0
Check
1
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 7 → 14 → 5 5 → 10 → 1 1 → 2 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 4 + 5 + 1 + 0 + 8 + 2 + 0 + 0 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1275581001.

Other Providers at the Same Location


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

Physician Assistant
420 W ROWLAND ST
COVINA, CA 91723
Internal Medicine (Pulmonary Disease)
420 W ROWLAND ST
COVINA, CA 91723
Internal Medicine
420 W ROWLAND ST
COVINA, CA 91723
Ophthalmology
420 W ROWLAND ST
COVINA, CA 91723
Allergy & Immunology (Allergy)
420 W ROWLAND ST
COVINA, CA 91723
Pediatrics
420 W ROWLAND ST
COVINA, CA 91723
Family Medicine
420 W ROWLAND ST
COVINA, CA 91723
Internal Medicine (Hematology & Oncology)
420 W ROWLAND ST
COVINA, CA 91723
Physician Assistant
420 W ROWLAND ST
COVINA, CA 91723
Physician Assistant
420 W ROWLAND ST
COVINA, CA 91723
Nurse Practitioner (Obstetrics & Gynecology)
420 W ROWLAND ST
COVINA, CA 91723
Nurse Practitioner
420 W ROWLAND ST
COVINA, CA 91723
Internal Medicine
420 W ROWLAND ST
COVINA, CA 91723
Nurse Practitioner (Family)
420 W ROWLAND ST
COVINA, CA 91723
Physician Assistant (Medical)
420 W ROWLAND ST
COVINA, CA 91723
Family Medicine
420 W ROWLAND ST
COVINA, CA 91723
Nurse Practitioner
420 W ROWLAND ST
COVINA, CA 91723
Internal Medicine
420 W ROWLAND ST
COVINA, CA 91723
Family Medicine
420 W ROWLAND ST
COVINA, CA 91723
Physician Assistant
420 W ROWLAND ST
COVINA, CA 91723

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275581001, enumerated as an "individual" on May 04, 2006.

The provider is located at 420 W ROWLAND ST COVINA, CA 91723 and the phone number is (626) 251-1559.

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.