WILLIAM JOHN MEEHAN MD
NPI 1659489649
Internal Medicine in Fort Harrison, MT

NPI Status: Active since August 29, 2006

Contact Information

1892 WILLIAMS STREET
VA CENTER
FORT HARRISON, MT
ZIP 59636
Phone: (406) 447-7476

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  • Individual
  • Male
  • Internal Medicine

About WILLIAM MEEHAN

This page provides the complete NPI Profile along with additional information for William Meehan, an internist established in Fort Harrison, Montana with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1659489649 assigned on August 2006. The practitioner's primary taxonomy code is 207R00000X with license number A24837 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1659489649
Provider Name
WILLIAM JOHN MEEHAN MD
Gender
Male
Entity Type
Individual
Location Address
1892 WILLIAMS STREET VA CENTER FORT HARRISON, MT 59636
Location Phone
(406) 447-7476
Mailing Address
2021 GOLD RUSH AVE HELENA, MT 59601
Mailing Phone
(406) 449-8609
Is Sole Proprietor?
Yes
Enumeration Date
08-29-2006
Last Update Date
07-08-2007
Code Navigator

An internist like William Meehan 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.
A24837
License State
CA
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.

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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 1659489649, we treat the final digit (9) 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 81. The final step is to find the difference between that total and the next multiple of ten (90 - 81 = 9).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
6
Unchanged
Pos 9
4
Doubled → 8
Check
9
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 4 → 8 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 8 + 8 + 1 + 8 + 6 + 8 + 24 = 81

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

The next multiple of ten after 81 is 90. The difference is the calculated check digit.

90 - 81 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1659489649.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Physical Therapy Assistant
1892 WILLIAMS STREET, PHYSICAL THERAPY DEPT.
FORT HARRISON, MT 59636
Pathology (Anatomic Pathology & Clinical Pathology)
1892 WILLIAMS STREET
FT. HARRISON, MT 59636
Pharmacist
1892 WILLIAMS STREET, PHARMACY DEPARTMENT VA MEDICAL CENTER
FORT HARRISON, MT 59636
Pharmacist
1892 WILLIAMS STREET, PHARMACY 119
FORT HARRISON, MT 59636
Pharmacist
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Pharmacist
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Pharmacist
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Pharmacist
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Dietitian, Registered
1892 WILLIAMS STREET, NUTRITION AND FOOD SERVICE
FORT HARRISON, MT 59636
Internal Medicine
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Internal Medicine
1892 WILLIAMS STREET, FT HARRISON VAMC
FT HARRISON, MT 59636
Internal Medicine
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Podiatrist
1892 WILLIAMS STREET, FORT HARRISON VAMC
FORT HARRISION, MT 59636
Physical Therapist
1892 WILLIAMS STREET
HELENA, MT 59636
Pharmacist
1892 WILLIAMS STREET
FORT HARRISON, MT 59636
Physical Therapist
1892 WILLIAMS STREET, PHYSICAL THERAPY DEPARTMENT
FORT HARRISON, MT 59636
Psychiatry & Neurology (Psychiatry)
1892 WILLIAMS STREET
FORT HARRISON, MT 59636

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659489649, enumerated as an "individual" on August 29, 2006.

The provider is located at 1892 WILLIAMS STREET VA CENTER FORT HARRISON, MT 59636 and the phone number is (406) 447-7476.

Internal Medicine with taxonomy code 207R00000X.