ELSPETH M DWYER PMHNP-BC
NPI 1215285804
Nurse Practitioner - Psychiatric/Mental Health in Chevy Chase, MD

NPI Status: Active since August 29, 2012

Contact Information

5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD
ZIP 20815
Phone: (240) 743-4535

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  • Individual
  • Female
  • Nurse Practitioner
  • Psychiatric/Mental Health
  • Opted-Out Medicare

About ELSPETH DWYER

This page provides the complete NPI Profile along with additional information for Elspeth Dwyer, a provider established in Chevy Chase, Maryland with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1215285804 assigned on August 2012. The practitioner's primary taxonomy code is 363LP0808X with license number R232196 (MD). The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI
1215285804
Provider Name
ELSPETH M DWYER PMHNP-BC
Gender
Female
Entity Type
Individual
Location Address
5454 WISCONSIN AVE STE 1275 CHEVY CHASE, MD 20815
Location Phone
(240) 743-4535
Mailing Address
10 CENTER DRIVE BG 10-CRC RM 7-5541 MSC 1282 BETHESDA, MD 20892
Mailing Phone
(301) 273-5835
Is Sole Proprietor?
No
Enumeration Date
08-29-2012
Last Update Date
02-03-2022
Code Navigator

A nurse practitioner (NP) like Elspeth Dwyer is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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. Elspeth Dwyer opted out of Medicare effective on 02-01-2023 until 02-01-2027. 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 and cannot 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

Nurse Practitioner Psychiatric/Mental Health

Taxonomy Code
363LP0808X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
R232196
License State
MD

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)
1363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

RN1031124 (DC)
2363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

0024174651 (VA)
3363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

RN2270393 (MA)

Medicare Participation & PECOS Enrollment Status

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.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 02-01-2023

  • Opt-Out End Date: 02-01-2027

  • Eligible to Order and Refer? No

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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 1215285804, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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
2
Unchanged
Pos 3
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
2
Doubled → 4
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
0
Doubled → 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 1 → 2 2 → 4 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 4 + 8 + 1 + 0 + 8 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1215285804.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Psychiatry & Neurology (Psychiatry)
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Social Worker
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Psychiatry & Neurology (Psychiatry)
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Psychiatry & Neurology (Psychiatry)
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Social Worker (Clinical)
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Psychiatry & Neurology (Psychiatry)
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Nurse Practitioner (Psychiatric/Mental Health)
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815
Social Worker
5454 WISCONSIN AVE STE 1275
CHEVY CHASE, MD 20815

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215285804, enumerated as an "individual" on August 29, 2012.

The provider is located at 5454 WISCONSIN AVE STE 1275 CHEVY CHASE, MD 20815 and the phone number is (240) 743-4535.

Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.