DR. MELISSA WAN MD, MPH
NPI 1710678867
Preventive Medicine - Occupational Medicine in Cambridge, MA

NPI Status: Active since May 18, 2023

Contact Information

1493 CAMBRIDGE ST
CAMBRIDGE, MA
ZIP 02139
Phone: (617) 665-1000

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  • Individual
  • Female
  • Preventive Medicine
  • Occupational Medicine

About MELISSA WAN

This page provides the complete NPI Profile along with additional information for Melissa Wan, a provider established in Cambridge, Massachusetts with a medical specialization in Preventive Medicine, focusing in occupational medicine . The healthcare provider is registered in the NPI registry with number 1710678867 assigned on May 2023. The practitioner's primary taxonomy code is 2083X0100X with license number 1018259 (MA). The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI
1710678867
Provider Name
DR. MELISSA WAN MD, MPH
Gender
Female
Entity Type
Individual
Location Address
1493 CAMBRIDGE ST CAMBRIDGE, MA 02139
Location Phone
(617) 665-1000
Mailing Address
UNIT 3613-7 GRENVILLE STREET TORONTO, ONTARIO M4Y 0
Is Sole Proprietor?
Yes
Enumeration Date
05-18-2023
Last Update Date
05-13-2024
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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

Preventive Medicine Occupational Medicine

Taxonomy Code
2083X0100X
Type
Allopathic & Osteopathic Physicians
License No.
1018259
License State
MA
Taxonomy Description
Occupational medicine focuses on the health of workers, including the ability to perform work; the physical, chemical, biological, and social environments of the workplace; and the health outcomes of environmental exposures. Practitioners in this field address the promotion of health in the work place, and the prevention and management of occupational and environmental injury, illness, and disability.

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)
12083P0500XAllopathic & Osteopathic Physicians

Preventive Medicine
Preventive Medicine/Occupational Environmental Medicine

NA (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 1710678867, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
7
Unchanged
Pos 3
1
Doubled → 2
Pos 4
0
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
7
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
7
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 6 → 12 → 3 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 2 + 0 + 1 + 2 + 7 + 1 + 6 + 8 + 1 + 2 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1710678867.

Other Providers at the Same Location


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

Pharmacist (Psychiatric)
1493 CAMBRIDGE ST, CAMBRIDGE HEALTH ALLIANCE-MYSTIC CENTER
CAMBRIDGE, MA 02139
Radiology (Diagnostic Radiology)
1493 CAMBRIDGE ST, RADIOLOGY DEPARTMENT
CAMBRIDGE, MA 02139
Internal Medicine (Hematology & Oncology)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Anesthesiology
1493 CAMBRIDGE ST, CHA - ANESTHESIOLOGY
CAMBRIDGE, MA 02139
Anesthesiology
1493 CAMBRIDGE ST, CHA - ANESTHESIOLOGY
CAMBRIDGE, MA 02139
Pediatrics
1493 CAMBRIDGE ST, CAMBRIDGE HEALTH ALLIANCE
CAMBRIDGE, MA 02139
Anesthesiology
1493 CAMBRIDGE ST, ANESTHESIOLOGY
CAMBRIDGE, MA 02139
Pathology (Anatomic Pathology & Clinical Pathology)
1493 CAMBRIDGE ST, CHA -PATHOLOGY
CAMBRIDGE, MA 02139
Pathology (Anatomic Pathology & Clinical Pathology)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Physical Medicine & Rehabilitation
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Pediatrics
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Anesthesiology
1493 CAMBRIDGE ST, CAMBRIDGE HOSPITAL
CAMBRIDGE, MA 02139
Pathology (Anatomic Pathology & Clinical Pathology)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Psychiatry & Neurology (Psychiatry)
1493 CAMBRIDGE ST, STATION LANDING/CCAD
CAMBRIDGE, MA 02139
Psychiatry & Neurology (Neurology)
1493 CAMBRIDGE ST, CAMBRIDGE HOSPITAL
CAMBRIDGE, MA 02139
Emergency Medicine
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Psychiatry & Neurology (Psychiatry)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Psychiatry & Neurology (Psychiatry)
1493 CAMBRIDGE ST, DEPT OF PSYCHIATRY, CAMBRIDGE HEALTH ALLIANCE
CAMBRIDGE, MA 02139
Internal Medicine
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139
Internal Medicine (Cardiovascular Disease)
1493 CAMBRIDGE ST
CAMBRIDGE, MA 02139

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1710678867, enumerated as an "individual" on May 18, 2023.

The provider is located at 1493 CAMBRIDGE ST CAMBRIDGE, MA 02139 and the phone number is (617) 665-1000.

Preventive Medicine with taxonomy code 2083X0100X and a focus in Occupational Medicine.