AMANDA HALSTROM MARCUS MD
NPI 1972031805
Internal Medicine - Endocrinology, Diabetes & Metabolism in Garden City, NY

NPI Status: Active since May 23, 2017

Contact Information

1111 FRANKLIN AVE
GARDEN CITY, NY
ZIP 11530
Phone: (516) 663-3511

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  • Individual
  • Female
  • Years of Experience 9
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism
  • May Accept Medicare Approved Payment
  • PECOS Enrolled
  • Opted-Out Medicare

About AMANDA MARCUS

This page provides the complete NPI Profile along with additional information for Amanda Marcus, an internist established in Garden City, New York with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism and more than 9 years of experience. The healthcare provider is registered in the NPI registry with number 1972031805 assigned on May 2017. The practitioner's primary taxonomy code is 207RE0101X with license number 309682 (NY). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1972031805
Provider Name
AMANDA HALSTROM MARCUS MD
Gender
Female
Entity Type
Individual
Location Address
1111 FRANKLIN AVE GARDEN CITY, NY 11530
Location Phone
(516) 663-3511
Mailing Address
1111 FRANKLIN AVE GARDEN CITY, NY 11530
Mailing Phone
(516) 663-3511
Medical School Name
OTHER
Graduation Year
2017
Is Sole Proprietor?
No
Enumeration Date
05-23-2017
Last Update Date
11-13-2025
Code Navigator

An internist like Amanda Marcus is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Amanda Marcus opted out of Medicare effective on 05-18-2023 until 05-18-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare but is permitted to order and refer services to other healthcare providers.

Location Map

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

Internal Medicine Endocrinology, Diabetes & Metabolism

Taxonomy Code
207RE0101X
Type
Allopathic & Osteopathic Physicians
License No.
309682
License State
NY
Taxonomy Description
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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)
1207RE0101XAllopathic & Osteopathic Physicians

Internal Medicine
Endocrinology, Diabetes & Metabolism

83169 (CT)
2390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

 

Medicare Participation & PECOS Enrollment Status

Amanda Marcus 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.

Amanda Marcus 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

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 05-18-2023

  • Opt-Out End Date: 05-18-2027

  • Eligible to Order and Refer? Yes

  • PECOS PAC ID: 7315304417

    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: I20250317000345

    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

Physician Visit Costs

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 11530 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $154.28
  • Minimum New Patient Price $67.4
  • Maximum New Patient Price $203.53
  • Average New Patient Copayment $38.57
  • Minimum New Patient Copayment $16.85
  • Maximum New Patient Copayment $50.88

Established Patients Visit Costs *

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

  • Average Established Patient Price $117.62
  • Minimum Established Patient Price $21.66
  • Maximum Established Patient Price $164.45
  • Average Established Patient Copayment $29.4
  • Minimum Established Patient Copayment $5.41
  • Maximum Established Patient Copayment $41.11

* 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.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Amanda Marcus is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
NYU LANGONE HOSPITALS550 FIRST AVENUE
NEW YORK, NY 10016
(212) 263-7300Acute Care Hospitals

Reviews for AMANDA HALSTROM MARCUS MD

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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 1972031805, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
1
Doubled → 2
Pos 8
8
Unchanged
Pos 9
0
Doubled → 0
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 7 → 14 → 5 0 → 0 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 + 9 + 1 + 4 + 2 + 0 + 3 + 2 + 8 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1972031805.

Other Providers at the Same Location


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

Hearing Instrument Specialist
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Optometrist
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Physician Assistant
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Nurse Practitioner (Family)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Nurse Practitioner (Family)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Podiatrist (Foot & Ankle Surgery)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Internal Medicine (Cardiovascular Disease)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Internal Medicine (Critical Care Medicine)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Surgery
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Surgery (Surgical Critical Care)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Internal Medicine (Hepatology)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Internal Medicine (Pulmonary Disease)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Physician Assistant
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Nurse Practitioner (Adult Health)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Dermatology
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Student in an Organized Health Care Education/Training Program
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Podiatrist (Foot & Ankle Surgery)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Pediatrics (Pediatric Cardiology)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Internal Medicine (Endocrinology, Diabetes & Metabolism)
1111 FRANKLIN AVE
GARDEN CITY, NY 11530
Internal Medicine
1111 FRANKLIN AVE
GARDEN CITY, NY 11530

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972031805, enumerated as an "individual" on May 23, 2017.

The provider is located at 1111 FRANKLIN AVE GARDEN CITY, NY 11530 and the phone number is (516) 663-3511.

Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.

Amanda Marcus is affiliated with: NYU LANGONE HOSPITALS.