DR. GEOFFREY ANDREW WALFORD M.D.
NPI 1952451353
Internal Medicine - Endocrinology, Diabetes & Metabolism in Boston, MA

NPI Status: Active since January 11, 2007

Contact Information

50 STANIFORD ST
DIABETES CENTER
BOSTON, MA
ZIP 02114
Phone: (617) 726-8722

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  • Individual
  • Male
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism

About GEOFFREY WALFORD

This page provides the complete NPI Profile along with additional information for Geoffrey Walford, an internist established in Boston, Massachusetts with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1952451353 assigned on January 2007. The practitioner's primary taxonomy code is 207RE0101X with license number 234100 (MA). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1952451353
Provider Name
DR. GEOFFREY ANDREW WALFORD M.D.
Gender
Male
Entity Type
Individual
Location Address
50 STANIFORD ST DIABETES CENTER BOSTON, MA 02114
Location Phone
(617) 726-8722
Mailing Address
50 STANIFORD ST FL 3D DIABETES CENTER BOSTON, MA 02114
Mailing Phone
(617) 726-8722
Mailing Fax
Is Sole Proprietor?
Yes
Enumeration Date
01-11-2007
Last Update Date
04-11-2011
Code Navigator

An internist like Geoffrey Walford 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.

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.
234100
License State
MA
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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

234100 (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 1952451353, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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
5
Doubled → 10 → 1 + 0
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
5
Unchanged
Pos 7
1
Doubled → 2
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
3
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 5 → 10 → 1 4 → 8 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 0 + 2 + 8 + 5 + 2 + 3 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1952451353.

Other Providers at the Same Location


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

Internal Medicine
50 STANIFORD ST, 3RD FLOOR S50 3
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
50 STANIFORD ST, SUITE 401 S50 401
BOSTON, MA 02114
Dermatology
50 STANIFORD ST, SUITE 200
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, 3RD FLOO S503
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, 4TH FLOOR
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, SUITE 503B
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
50 STANIFORD ST, 4TH FLOOR
BOSTON, MA 02114
Ophthalmology
50 STANIFORD ST, SUITE 600
BOSTON, MA 02114
Internal Medicine (Endocrinology, Diabetes & Metabolism)
50 STANIFORD ST, 3RD FLOOR S50 3
BOSTON, MA 02114
Pathology (Clinical Pathology/Laboratory Medicine)
50 STANIFORD ST, 3RD FLOOR S50 3 DIABETES UNIT
BOSTON, MA 02114
Anesthesiology
50 STANIFORD ST, C/O MA ANESTHESIA CORP
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, SUITE 503B
BOSTON, MA 02114
Internal Medicine (Nephrology)
50 STANIFORD ST, 7TH FLOOR, LAB OF COMPUTER SCIENCE
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, MGH INPATIENT CLINICIAN EDUCATOR SERVICE
BOSTON, MA 02114
Optometrist
50 STANIFORD ST, SUITE 600
BOSTON, MA 02114
Ophthalmology
50 STANIFORD ST, THIRD FLOOR
BOSTON, MA 02114
Dentist (General Practice)
50 STANIFORD ST, 8TH FLOOR
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, SUITE 300
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
50 STANIFORD ST
BOSTON, MA 02114
Internal Medicine
50 STANIFORD ST, SUITE 503B
BOSTON, MA 02114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952451353, enumerated as an "individual" on January 11, 2007.

The provider is located at 50 STANIFORD ST DIABETES CENTER BOSTON, MA 02114 and the phone number is (617) 726-8722.

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