WILLIAM L MARSHALL M.D.
NPI 1053394908
Internal Medicine - Infectious Disease in Worcester, MA

NPI Status: Active since November 23, 2005

Contact Information

55 LAKE AVE N
DEPARTMENT OF INFECTIOUS DISEASE
WORCESTER, MA
ZIP 01655
Phone: (508) 856-1720

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  • Individual
  • Male
  • Internal Medicine
  • Infectious Disease

About WILLIAM MARSHALL

This page provides the complete NPI Profile along with additional information for William Marshall, an internist established in Worcester, Massachusetts with a medical specialization in Internal Medicine, focusing in infectious disease . The healthcare provider is registered in the NPI registry with number 1053394908 assigned on November 2005. The practitioner's primary taxonomy code is 207RI0200X with license number 70928 (MA). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1053394908
Provider Name
WILLIAM L MARSHALL M.D.
Gender
Male
Entity Type
Individual
Location Address
55 LAKE AVE N DEPARTMENT OF INFECTIOUS DISEASE WORCESTER, MA 01655
Location Phone
(508) 856-1720
Mailing Address
PO BOX 415348 BOSTON, MA 02241
Is Sole Proprietor?
No
Enumeration Date
11-23-2005
Last Update Date
12-10-2010
Code Navigator

An internist like William Marshall 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 Infectious Disease

Taxonomy Code
207RI0200X
Type
Allopathic & Osteopathic Physicians
License No.
70928
License State
MA
Taxonomy Description
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

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.

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
MX3702MEDICARE PIN (08)MA 
3065511MEDICAID (05)MA 
E50271MEDICARE UPIN (02)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 1053394908, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 0 + 3 + 6 + 9 + 8 + 9 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1053394908.

Other Providers at the Same Location


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

Pharmacist (Pharmacotherapy)
55 LAKE AVE N, UMASS MED CENTER DEPT OF PHARMACY
WORCESTER, MA 01655
Nurse Anesthetist, Certified Registered
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Internal Medicine (Cardiovascular Disease)
55 LAKE AVE N, CARDIOLOGY
WORCESTER, MA 01655
Psychiatry & Neurology (Psychiatry)
55 LAKE AVE N
WORCESTER, MA 01655
Pharmacist (Pharmacotherapy)
55 LAKE AVE N
WORCESTER, MA 01655
Genetic Counselor, MS
55 LAKE AVE N, S1-710
WORCESTER, MA 01655
Emergency Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Internal Medicine (Rheumatology)
55 LAKE AVE N
WORCESTER, MA 01655
Internal Medicine
55 LAKE AVE N, DEPARTMENT OF GENERAL MEDICINE
WORCESTER, MA 01655
Pathology (Anatomic Pathology)
55 LAKE AVE N, DEPARTMENT OF PATHOLOGY
WORCESTER, MA 01655
Pediatrics (Adolescent Medicine)
55 LAKE AVE N, DEPARTMENT OF PEDIATRIC ADOLESCENT MEDICINE
WORCESTER, MA 01655
Anesthesiology
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Anesthesiology
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Internal Medicine (Cardiovascular Disease)
55 LAKE AVE N
WORCESTER, MA 01655
Thoracic Surgery (Cardiothoracic Vascular Surgery)
55 LAKE AVE N, DEPARTMENT OF SURGERY
WORCESTER, MA 01655
Emergency Medicine
55 LAKE AVE N, DEPARTMENT OF EMERGENCY MEDICINE
WORCESTER, MA 01655
Surgery (Surgical Critical Care)
55 LAKE AVE N, DEPARTMENT OF SURGICAL CRITICAL CARE
WORCESTER, MA 01655
Internal Medicine (Rheumatology)
55 LAKE AVE N, DEPARTMENT OF RHEUMATOLOGY
WORCESTER, MA 01655
Internal Medicine (Rheumatology)
55 LAKE AVE N, DEPARTMENT OF RHEUMATOLOGY
WORCESTER, MA 01655
Internal Medicine
55 LAKE AVE N, DEPARTMENT OF INTERNAL MEDICINE
WORCESTER, MA 01655

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053394908, enumerated as an "individual" on November 23, 2005.

The provider is located at 55 LAKE AVE N DEPARTMENT OF INFECTIOUS DISEASE WORCESTER, MA 01655 and the phone number is (508) 856-1720.

Internal Medicine with taxonomy code 207RI0200X and a focus in Infectious Disease.

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