PAUL M FERGUS MD
NPI 1356336200
Internal Medicine in Watertown, MA

NPI Status: Active since September 16, 2005

Contact Information

521 MOUNT AUBURN ST
SUITE 101
WATERTOWN, MA
ZIP 02472
Phone: (617) 924-6484
Fax: (617) 924-6142

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  • Individual
  • Male
  • Internal Medicine

About PAUL FERGUS

This page provides the complete NPI Profile along with additional information for Paul Fergus, an internist established in Watertown, Massachusetts with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1356336200 assigned on September 2005. The practitioner's primary taxonomy code is 207R00000X with license number 35170 (MA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1356336200
Provider Name
PAUL M FERGUS MD
Gender
Male
Entity Type
Individual
Location Address
521 MOUNT AUBURN ST SUITE 101 WATERTOWN, MA 02472
Location Phone
(617) 924-6484
Location Fax
(617) 924-6142
Mailing Address
521 MOUNT AUBURN ST SUITE 101 WATERTOWN, MA 02472
Mailing Phone
(617) 924-6484
Mailing Fax
(617) 924-6142
Is Sole Proprietor?
Yes
Enumeration Date
09-16-2005
Last Update Date
07-08-2007
Code Navigator

An internist like Paul Fergus 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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
35170
License State
MA
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

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
2029499MEDICAID (05)MA 
B32097MEDICARE ID-TYPE UNSPECIFIED (04)MA 
A35276MEDICARE UPIN (02) 

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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 1356336200, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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
3
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
6
Unchanged
Pos 5
3
Doubled → 6
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
2
Unchanged
Pos 9
0
Doubled → 0
Check
0
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 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 0 + 6 + 6 + 3 + 1 + 2 + 2 + 0 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1356336200.

Other Providers at the Same Location


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

Internal Medicine
521 MOUNT AUBURN ST, STE 202
WATERTOWN, MA 02472
Dentist
521 MOUNT AUBURN ST, STE 207
WATERTOWN, MA 02472
Obstetrics & Gynecology
521 MOUNT AUBURN ST, STE 103
WATERTOWN, MA 02472
Internal Medicine
521 MOUNT AUBURN ST, STE 202
WATERTOWN, MA 02472
Internal Medicine (Cardiovascular Disease)
521 MOUNT AUBURN ST, SUITE 204
WATERTOWN, MA 02472
Physical Therapist
521 MOUNT AUBURN ST, SUITE 205
WATERTOWN, MA 02472
Physical Therapist
521 MOUNT AUBURN ST, SUITE 205
WATERTOWN, MA 02472
Ophthalmology
521 MOUNT AUBURN ST
WATERTOWN, MA 02472
Dentist (General Practice)
521 MOUNT AUBURN ST, SUITE #102
WATERTOWN, MA 02472
Dentist (General Practice)
521 MOUNT AUBURN ST, #102
WATERTOWN, MA 02472
Internal Medicine (Cardiovascular Disease)
521 MOUNT AUBURN ST, SUITE 204
WATERTOWN, MA 02472
Counselor (Mental Health)
521 MOUNT AUBURN ST
WATERTOWN, MA 02472
Dentist (General Practice)
521 MOUNT AUBURN ST, SUITE 102
WATERTOWN, MA 02472
Clinic/Center (Dental)
521 MOUNT AUBURN ST, SUITE 104
WATERTOWN, MA 02472
Dentist (Pediatric Dentistry)
521 MOUNT AUBURN ST, SUITE 104
WATERTOWN, MA 02472
Psychologist
521 MOUNT AUBURN ST, SUITE 107-109
WATERTOWN, MA 02472
Physical Therapist
521 MOUNT AUBURN ST, SUITE 205
WATERTOWN, MA 02472
Physical Therapist
521 MOUNT AUBURN ST
WATERTOWN, MA 02472
Physical Therapist
521 MOUNT AUBURN ST, SUITE 205
WATERTOWN, MA 02472
Social Worker (Clinical)
521 MOUNT AUBURN ST, SUITE 109
WATERTOWN, MA 02472

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1356336200, enumerated as an "individual" on September 16, 2005.

The provider is located at 521 MOUNT AUBURN ST SUITE 101 WATERTOWN, MA 02472 and the phone number is (617) 924-6484.

Internal Medicine with taxonomy code 207R00000X.

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