DR. MARGARET T MARSHALL M.D.
NPI 1639170475
Emergency Medicine in Encinitas, CA

NPI Status: Active since August 02, 2005

Contact Information

354 SANTA FE DR
ENCINITAS, CA
ZIP 92024
Phone: (760) 230-2251

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  • Individual
  • Female
  • Years of Experience 25
  • Emergency Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MARGARET MARSHALL

This page provides the complete NPI Profile along with additional information for Margaret Marshall, a provider established in Encinitas, California with a medical specialization in Emergency Medicine and more than 25 years of experience. She graduated from University Of California, San Diego School Of Medicine in 2001. The healthcare provider is registered in the NPI registry with number 1639170475 assigned on August 2005. The practitioner's primary taxonomy code is 207P00000X with license number A87417 (CA). The provider is registered as an individual and her NPI record was last updated 17 years ago.

NPI
1639170475
Provider Name
DR. MARGARET T MARSHALL M.D.
Gender
Female
Entity Type
Individual
Location Address
354 SANTA FE DR ENCINITAS, CA 92024
Location Phone
(760) 230-2251
Mailing Address
PO BOX 230760 ENCINITAS, CA 92023
Mailing Phone
(760) 230-2251
Medical School Name
UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduation Year
2001
Is Sole Proprietor?
No
Enumeration Date
08-02-2005
Last Update Date
11-25-2009
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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

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
A87417
License State
CA
Taxonomy Description
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

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
I08664MEDICARE UPIN (02)CA 
00A874170MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

Margaret Marshall 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.

Margaret Marshall 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: 8527048545

    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: I20040721000964

    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

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.

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg

Albuterol is a medication used to treat breathing problems. It is administered as an inhalation solution through a device called DME (Durable Medical Equipment). The solution is FDA-approved and non-compounded. Each unit dose contains 1 mg of the medicine.

This service was performed 11 times for 11 patients

Automated urinalysis test

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

This service was performed 39 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 49 times for 48 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 123 times for 119 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 44 times for 44 patients

Infusion into a vein for hydration, 31-60 minutes

This is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.

This service was performed 41 times for 40 patients

Infusion into a vein for hydration, each additional hour

This procedure involves delivering fluids directly into your vein to keep your body hydrated. It is typically done when oral hydration is insufficient. Each additional hour means more fluid is infused to ensure adequate hydration.

This service was performed 102 times for 73 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

This service was performed 25 times for 25 patients

Infusion, normal saline solution , 1000 cc

An infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.

This service was performed 90 times for 83 patients

Infusion, normal saline solution, sterile (500 ml = 1 unit)

An infusion of a normal saline solution is a common medical procedure. Sterile saline (salt water) is administered into your bloodstream via a drip. This helps to maintain fluid balance in your body, especially when you're unable to drink enough liquids.

This service was performed 20 times for 19 patients

Inhalation treatment for airway obstruction or sputum production

Inhalation treatment, also known as nebulizer therapy, helps clear airway obstructions and reduce sputum production. It involves breathing in medication through a device, turning it into a mist. This can open up the airways, making breathing easier and helping to cough out mucus.

This service was performed 18 times for 13 patients

Injection of additional new drug or substance into vein

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

This service was performed 117 times for 66 patients

Injection of drug or substance into vein

This procedure involves introducing a medication or substance directly into your vein using a syringe. It's a quick and efficient way to deliver treatment throughout your body. You might feel a small prick when the needle enters. It's generally safe and effective.

This service was performed 107 times for 106 patients

Injection, ceftriaxone sodium, per 250 mg

Ceftriaxone sodium is an antibiotic injection used to treat a variety of bacterial infections. Each injection contains 250 mg of the medicine. It works by stopping the growth of bacteria in your body.

This service was performed 326 times for 73 patients

Injection, hydromorphone, up to 4 mg

Hydromorphone injection is a pain relief medication administered through an injection, up to 4 mg. It works by altering the body's response to pain, providing comfort and relief. It's important to follow your healthcare provider's instructions for use.

This service was performed 28 times for 24 patients

Injection, ketorolac tromethamine, per 15 mg

Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.

This service was performed 29 times for 27 patients

Injection, ondansetron hydrochloride, per 1 mg

Ondansetron hydrochloride is a medication given via injection to help prevent nausea and vomiting, often due to chemotherapy or surgery. It works by blocking certain chemicals in the body that trigger these symptoms.

This service was performed 196 times for 47 patients

Insertion of needle into vein for collection of blood sample

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

This service was performed 58 times for 58 patients

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

This service was performed 1,100 times for 11 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 26 times for 26 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 59 times for 59 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 33 times for 33 patients

Routine electrocardiogram (ecg) using at least 12 leads with tracing

An Electrocardiogram (ECG) is a simple, painless test that records the heart's electrical activity. Using 12 leads attached to your skin, it generates a tracing of your heart rhythm. It helps detect any heart problems by showing the timing and strength of electrical signals passing through each part of your heart.

This service was performed 134 times for 130 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $23.71 for a new patient copayment and $27.1 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 92024 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $94.87
  • Minimum New Patient Price $62.1
  • Maximum New Patient Price $184.71
  • Average New Patient Copayment $23.71
  • Minimum New Patient Copayment $15.52
  • Maximum New Patient Copayment $46.17

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $108.42
  • Minimum Established Patient Price $20.62
  • Maximum Established Patient Price $151.42
  • Average Established Patient Copayment $27.1
  • Minimum Established Patient Copayment $5.15
  • Maximum Established Patient Copayment $37.85

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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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 1639170475, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 2 + 7 + 0 + 4 + 1 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1639170475.

Other Providers at the Same Location


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

Hospitalist
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Internal Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Nurse Practitioner
354 SANTA FE DR, ENCINITAS
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Nurse Practitioner
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Emergency Medicine
354 SANTA FE DR, EMERGENCY DEPARTMENT
ENCINITAS, CA 92024
Internal Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Anesthesiology
354 SANTA FE DR
ENCINITAS, CA 92024
Internal Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Internal Medicine
354 SANTA FE DR
ENCINITAS, CA 92024
Anesthesiology
354 SANTA FE DR
ENCINITAS, CA 92024

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639170475, enumerated as an "individual" on August 02, 2005.

The provider is located at 354 SANTA FE DR ENCINITAS, CA 92024 and the phone number is (760) 230-2251.

Emergency Medicine with taxonomy code 207P00000X.

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