TONI BETH WALZER MD
NPI 1013925015
Obstetrics & Gynecology - Gynecology in Boston, MA

NPI Status: Active since August 04, 2006

Contact Information

333 LONGWOOD AVENUE
ADOLESCENT GYNECOLOGY
BOSTON, MA
ZIP 02115
Phone: (617) 355-5785

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  • Individual
  • Female
  • Obstetrics & Gynecology
  • Gynecology

About TONI WALZER

This page provides the complete NPI Profile along with additional information for Toni Walzer, a women's health care provider established in Boston, Massachusetts with a medical specialization in Obstetrics & Gynecology, focusing in gynecology . The healthcare provider is registered in the NPI registry with number 1013925015 assigned on August 2006. The practitioner's primary taxonomy code is 207VG0400X with license number 47837 (MA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1013925015
Provider Name
TONI BETH WALZER MD
Gender
Female
Entity Type
Individual
Location Address
333 LONGWOOD AVENUE ADOLESCENT GYNECOLOGY BOSTON, MA 02115
Location Phone
(617) 355-5785
Mailing Address
333 LONGWOOD AVENUE ADOLESCENT GYNECOLOGY BOSTON, MA 02115
Mailing Phone
(617) 355-5785
Is Sole Proprietor?
No
Enumeration Date
08-04-2006
Last Update Date
07-08-2007
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Women's health care providers like Toni Walzer treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

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

Obstetrics & Gynecology Gynecology

Taxonomy Code
207VG0400X
Type
Allopathic & Osteopathic Physicians
License No.
47837
License State
MA
Taxonomy Description
A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions. Source: National Uniform Claim Committee

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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 1013925015, 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 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 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
0
Unchanged
Pos 3
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
0
Unchanged
Pos 9
1
Doubled → 2
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 1 → 2 9 → 18 → 9 5 → 10 → 1 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 2 + 3 + 1 + 8 + 2 + 1 + 0 + 0 + 2 + 24 = 45

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

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1013925015.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Psychologist
333 LONGWOOD AVENUE
BOSTON, MA 02115
Pediatrics (Pediatric Endocrinology)
333 LONGWOOD AVENUE, SECOND FLOOR
BOSTON, MA 02115
Dietitian, Registered
333 LONGWOOD AVENUE, CLINICAL NUTRITION DEPARTMENT
BOSTON, MA 02115

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013925015, enumerated as an "individual" on August 04, 2006.

The provider is located at 333 LONGWOOD AVENUE ADOLESCENT GYNECOLOGY BOSTON, MA 02115 and the phone number is (617) 355-5785.

Obstetrics & Gynecology with taxonomy code 207VG0400X and a focus in Gynecology.