MASSACHUSETTS GENERAL HOSPITAL
NPI 1649111634
Psychiatric Hospital in Boston, MA
NPI Status: Active since April 02, 2026
Contact Information
15 PARKMAN ST
BOSTON, MA
ZIP 02114
Phone: (617) 726-9550
- Organization
- Psychiatric Hospital
About MASSACHUSETTS GENERAL HOSPITAL
This page provides the complete NPI Profile along with additional information for Massachusetts General Hospital, a provider established in Boston, Massachusetts operating as a Psychiatric Hospital. The healthcare provider is registered in the NPI registry with number 1649111634 assigned on April 2026. The practitioner's primary taxonomy code is 283Q00000X. The provider is registered as an organization and their NPI record was last updated April 2026. The authorized official of this NPI record is Dr. Kevin Frederiks Md (Resident)
- NPI
- 1649111634
- Provider Name
- MASSACHUSETTS GENERAL HOSPITAL
- Entity Type
- Organization
- Location Address
- 15 PARKMAN ST BOSTON, MA 02114
- Location Phone
- (617) 726-9550
- Mailing Address
- 15 PARKMAN ST BOSTON, MA 02114
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 04-02-2026
- Last Update Date
- 04-02-2026
- Code Navigator
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
Psychiatric Hospital
- Taxonomy Code
- 283Q00000X
- Type
- Hospitals
- Taxonomy Description
- An organization including a physical plant and personnel that provides multidisciplinary diagnostic and treatment mental health services to patients requiring the safety, security, and shelter of the inpatient or partial hospitalization settings.
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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 1649111634, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 66 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1649111634, enumerated as an "organization" on April 02, 2026.
The provider is located at 15 PARKMAN ST BOSTON, MA 02114 and the phone number is (617) 726-9550.
Psychiatric Hospital with taxonomy code 283Q00000X.
