SYDNEY ELLEN GREENO
NPI 1033725841
Counselor - Mental Health in Concord, NH

NPI Status: Active since September 17, 2020

Contact Information

250 PLEASANT ST
CONCORD, NH
ZIP 03301
Phone: (603) 225-2711

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  • Individual
  • Female
  • Counselor
  • Mental Health

About SYDNEY GREENO

This page provides the complete NPI Profile along with additional information for Sydney Greeno, a provider established in Concord, New Hampshire with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1033725841 assigned on September 2020. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1033725841
Provider Name
SYDNEY ELLEN GREENO
Gender
Female
Entity Type
Individual
Location Address
250 PLEASANT ST CONCORD, NH 03301
Location Phone
(603) 225-2711
Mailing Address
PO BOX 2032 CONCORD, NH 03302
Mailing Phone
(603) 226-7505
Is Sole Proprietor?
No
Enumeration Date
09-17-2020
Last Update Date
07-14-2025
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A mental health counselor like Sydney Greeno provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

Location Map

Secondary Locations

  • 40 Pleasant St
    Concord, NH 03301

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers

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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 1033725841, 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 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
0
Unchanged
Pos 3
3
Doubled → 6
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
4
Doubled → 8
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 3 → 6 7 → 14 → 5 5 → 10 → 1 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 6 + 3 + 1 + 4 + 2 + 1 + 0 + 8 + 8 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1033725841.

Other Providers at the Same Location


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

Family Medicine
250 PLEASANT ST, FHC CONCORD, YEAPLE BUILDING
CONCORD, NH 03301
Obstetrics & Gynecology
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST, CHFHC YEAPLE
CONCORD, NH 03301
Dentist
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST, YEAPLE BUILDING
CONCORD, NH 03301
Dentist (General Practice)
250 PLEASANT ST
CONCORD, NH 03301
Dentist
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST, CRFHC
CONCORD, NH 03301
Psychiatry & Neurology (Child & Adolescent Psychiatry)
250 PLEASANT ST
CONCORD, NH 03301
Physician Assistant
250 PLEASANT ST
CONCORD, NH 03301
Pathology (Anatomic Pathology & Clinical Pathology)
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST, CHFHC-CONCORD
CONCORD, NH 03301
Internal Medicine (Hematology & Oncology)
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST
CONCORD, NH 03301
Nurse Practitioner
250 PLEASANT ST
CONCORD, NH 03301
Internal Medicine (Pulmonary Disease)
250 PLEASANT ST
CONCORD, NH 03301
Physician Assistant
250 PLEASANT ST
CONCORD, NH 03301
Internal Medicine
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST
CONCORD, NH 03301
Family Medicine
250 PLEASANT ST
CONCORD, NH 03301

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033725841, enumerated as an "individual" on September 17, 2020.

The provider is located at 250 PLEASANT ST CONCORD, NH 03301 and the phone number is (603) 225-2711.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.