DR. WILLIAM ELLIS FALK MD
NPI 1003807918
Psychiatry & Neurology - Geriatric Psychiatry in Boston, MA
NPI Status: Active since October 31, 2005
Contact Information
15 PARKMAN ST
PSYCHIATRY OUTPATIENT DEPARTMENT WAC 812
BOSTON, MA
ZIP 02114
Phone: (617) 726-5600
Fax: (617) 726-7541
- Individual
- Male
- Psychiatry & Neurology
- Geriatric Psychiatry
About WILLIAM FALK
This page provides the complete NPI Profile along with additional information for William Falk, a provider established in Boston, Massachusetts with a medical specialization in Psychiatry & Neurology, focusing in geriatric psychiatry . The healthcare provider is registered in the NPI registry with number 1003807918 assigned on October 2005. The practitioner's primary taxonomy code is 2084P0805X with license number 37722 (MA). The provider is registered as an individual and his NPI record was last updated 14 years ago.
- NPI
- 1003807918
- Provider Name
- DR. WILLIAM ELLIS FALK MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 15 PARKMAN ST PSYCHIATRY OUTPATIENT DEPARTMENT WAC 812 BOSTON, MA 02114
- Location Phone
- (617) 726-5600
- Location Fax
- (617) 726-7541
- Mailing Address
- PO BOX 9142 MASS GENERAL PHYSICIAN ORGANIZATION CHARLESTOWN, MA 02129
- Mailing Phone
- (617) 724-5600
- Mailing Fax
- (617) 726-7541
- Is Sole Proprietor?
- No
- Enumeration Date
- 10-31-2005
- Last Update Date
- 12-18-2012
- 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
Psychiatry & Neurology Geriatric Psychiatry
- Taxonomy Code
- 2084P0805X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 37722
- License State
- MA
- Taxonomy Description
- Geriatric Psychiatry is a subspecialty with psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.
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) |
|---|---|---|---|---|
| 1 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | 37722 (MA) |
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.
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.
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 |
|---|---|---|---|
| A53930 | MEDICARE UPIN (02) | ||
| 2031574 | MEDICAID (05) | MA | |
| A30571 | MEDICARE ID-TYPE UNSPECIFIED (04) | MA | |
| 037722 | OTHER (01) | MA | TUFTS HEALTH PLAN |
| C26043 | OTHER (01) | MA | BCBS 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 1003807918, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).
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 52 is 60. 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 1003807918, enumerated as an "individual" on October 31, 2005.
The provider is located at 15 PARKMAN ST PSYCHIATRY OUTPATIENT DEPARTMENT WAC 812 BOSTON, MA 02114 and the phone number is (617) 726-5600.
Psychiatry & Neurology with taxonomy code 2084P0805X and a focus in Geriatric Psychiatry.
The provider might be accepting Accepts: Medicare, Medicaid, Tufts Health Plan and Blue. Please consult your insurance carrier or call the provider to verify.
