CHI S WANG MD
NPI 1295763647
General Practice in Waltham, MA

NPI Status: Active since June 28, 2006

Contact Information

20 HOPE AVE
SUITE 208
WALTHAM, MA
ZIP 02453
Phone: (781) 891-1230
Fax: (781) 893-7138

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  • Organization
  • General Practice

About CHI S WANG MD

This page provides the complete NPI Profile along with additional information for Chi S Wang Md, a primary care provider established in Waltham, Massachusetts operating as a General Practice. The healthcare provider is registered in the NPI registry with number 1295763647 assigned on June 2006. The practitioner's primary taxonomy code is 208D00000X with license number 51559 (MA). The provider is registered as an organization and their NPI record was last updated one year ago. Chi S Wang Md operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Chi Shiang Wang Md (Md & Owner Of Practice)

NPI
1295763647
Provider Name
CHI S WANG MD
Entity Type
Organization
Location Address
20 HOPE AVE SUITE 208 WALTHAM, MA 02453
Location Phone
(781) 891-1230
Location Fax
(781) 893-7138
Mailing Address
133 MARKET ST LOWELL, MA 01852
Mailing Phone
(978) 453-1300
Mailing Fax
(781) 893-7138
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-28-2006
Last Update Date
09-11-2025
Code Navigator

A primary care provider (PCP) like Chi S Wang Md sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

General Practice

Taxonomy Code
208D00000X
Type
Allopathic & Osteopathic Physicians
License No.
51559
License State
MA
Taxonomy Description
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

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)
1207KA0200XAllopathic & Osteopathic Physicians

Allergy & Immunology
Allergy

34072 (MA)
2207KA0200XAllopathic & Osteopathic Physicians

Allergy & Immunology
Allergy

36270 (MA)
3208000000XAllopathic & Osteopathic Physicians

Pediatrics

34072 (MA)
4208D00000XAllopathic & Osteopathic Physicians

General Practice

34072 (MA)
5208D00000XAllopathic & Osteopathic Physicians

General Practice

53478 (MA)

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

CHI SHIANG WANG MD

Authorized Official Title
MD & OWNER OF PRACTICE
Authorized Official Phone
(978) 453-1300

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
M15313OTHER (01)BC
9764704MEDICAID (05)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 1295763647, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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
2
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
5
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
6
Unchanged
Pos 9
4
Doubled → 8
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 9 → 18 → 9 7 → 14 → 5 3 → 6 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 8 + 5 + 1 + 4 + 6 + 6 + 6 + 8 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1295763647.

Other Providers at the Same Location


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

Internal Medicine (Cardiovascular Disease)
20 HOPE AVE, STE 206
WALTHAM, MA 02453
Ophthalmology
20 HOPE AVE, SUITE 212
WALTHAM, MA 02453
Internal Medicine (Gastroenterology)
20 HOPE AVE, STE G10
WALTHAM, MA 02453
Surgery
20 HOPE AVE, STE 207
WALTHAM, MA 02453
Psychiatry & Neurology (Psychiatry)
20 HOPE AVE, SUITE G05
WALTHAM, MA 02453
Midwife
20 HOPE AVE, STE 110
WALTHAM, MA 02453
Midwife
20 HOPE AVE, STE 110
WALTHAM, MA 02453
Psychiatry & Neurology (Neurology)
20 HOPE AVE, SUITE 203
WALTHAM, MA 02453
Internal Medicine (Pulmonary Disease)
20 HOPE AVE
WALTHAM, MA 02453
Nurse Practitioner (Family)
20 HOPE AVE, SUITE G10
WALTHAM, MA 02453
Dietitian, Registered
20 HOPE AVE, SUITE G03
WALTHAM, MA 02453
Psychiatry & Neurology (Neurology)
20 HOPE AVE, STE 103
WALITHAM, MA 02453
Internal Medicine
20 HOPE AVE, SUITE G10
WALTHAM, MA 02453
Obstetrics & Gynecology
20 HOPE AVE, #309
WALTHAM, MA 02453
Nurse Practitioner (Psychiatric/Mental Health)
20 HOPE AVE, SUITE G05
WALTHAM, MA 02453
Dentist (Pediatric Dentistry)
20 HOPE AVE, SUITE 306
WALTHAM, MA 02453
Pediatrics
20 HOPE AVE, SUITE G06
WALTHAM, MA 02453
Ophthalmology
20 HOPE AVE, SUITE 106
WALTHAM, MA 02453
Counselor (Mental Health)
20 HOPE AVE, G-05
WALTHAM, MA 02453
Dentist (General Practice)
20 HOPE AVE, #306
WALTHAM, MA 02453

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1295763647, enumerated as an "organization" on June 28, 2006.

The provider is located at 20 HOPE AVE SUITE 208 WALTHAM, MA 02453 and the phone number is (781) 891-1230.

General Practice with taxonomy code 208D00000X.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.