DR. JOHN HERBERT BACKMAN M.D.
NPI 1801943816
Psychiatry & Neurology - Child & Adolescent Psychiatry in Worcester, MA

NPI Status: Active since January 04, 2007

Contact Information

305 BELMONT ST
WORCESTER, MA
ZIP 01604
Phone: (508) 368-3533
Fax: (508) 363-1502

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry

About JOHN BACKMAN

This page provides the complete NPI Profile along with additional information for John Backman, a provider established in Worcester, Massachusetts with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1801943816 assigned on January 2007. The practitioner's primary taxonomy code is 2084P0804X with license number 27675 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1801943816
Provider Name
DR. JOHN HERBERT BACKMAN M.D.
Gender
Male
Entity Type
Individual
Location Address
305 BELMONT ST WORCESTER, MA 01604
Location Phone
(508) 368-3533
Location Fax
(508) 363-1502
Mailing Address
305 BELMONT ST WORCESTER, MA 01604
Mailing Phone
(508) 368-3533
Mailing Fax
(508) 363-1502
Is Sole Proprietor?
Yes
Enumeration Date
01-04-2007
Last Update Date
07-15-2007
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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

Psychiatry & Neurology Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
27675
License State
MA
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

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)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

27675 (MA)

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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 1801943816, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
4
Unchanged
Pos 7
3
Doubled → 6
Pos 8
8
Unchanged
Pos 9
1
Doubled → 2
Check
6
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 0 → 0 9 → 18 → 9 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 1 + 8 + 4 + 6 + 8 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1801943816.

Other Providers at the Same Location


The following 13 providers are registered at the same or a nearby location.

Psychologist
305 BELMONT ST
WORCESTER, MA 01604
Psychologist (Clinical)
305 BELMONT ST, 6B WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Clinical Nurse Specialist (Psychiatric/Mental Health, Adult)
305 BELMONT ST
WORCESTER, MA 01604
Psychologist (Forensic)
305 BELMONT ST, WSH - FORENSIC SERVICE
WORCESTER, MA 01604
Case Management
305 BELMONT ST, WORCESTER CM
WORCESTER, MA 01604
Community/Behavioral Health
305 BELMONT ST, CENTRAL MASS RHO
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT ST, 7C
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT ST
WORCESTER, MA 01604
Physician Assistant
305 BELMONT ST, WORCESTER STATE HOSPITAL
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT ST
WORCESTER, MA 01604
Psychologist (Clinical Child & Adolescent)
305 BELMONT ST, UMASS ADOLESCENT CONTINUING CARE UNIT
WORCESTER, MA 01604
Social Worker (Clinical)
305 BELMONT ST, DEPARTMENT OF MENTAL HEALTH - CENTRAL WEST AREA
WORCESTER, MA 01604
Psychiatry & Neurology (Psychiatry)
305 BELMONT ST, 7C, IRTP TRANSITIONS
WORCESTER, MA 01604

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801943816, enumerated as an "individual" on January 04, 2007.

The provider is located at 305 BELMONT ST WORCESTER, MA 01604 and the phone number is (508) 368-3533.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.