JOAN GATHJE CLARK
NPI 1386720126
Internal Medicine - Pulmonary Disease in Seattle, WA

NPI Status: Active since October 27, 2006

Contact Information

UNIVERSITY OF WASHINGTON MEDICAL CTR
1959 NE PACIFIC ST
SEATTLE, WA
ZIP 98195
Phone: (206) 288-1000

NPI Profile Information
Primary Taxonomy
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Internal Medicine
Pulmonary Disease

About JOAN CLARK

This page provides the complete NPI Profile along with additional information for Joan Clark, an internist established in Seattle, Washington with a medical specialization in Internal Medicine, focusing in pulmonary disease . The healthcare provider is registered in the NPI registry with number 1386720126 assigned on October 2006. The practitioner's primary taxonomy code is 207RP1001X with license number MD00022064 (WA). The provider is registered as an individual and her NPI record was last updated 14 years ago.

NPI: 1386720126
Provider Name: JOAN GATHJE CLARK
Gender: Female
Entity Type: Individual
Location Address: UNIVERSITY OF WASHINGTON MEDICAL CTR 1959 NE PACIFIC ST SEATTLE, WA 98195
Location Phone: (206) 288-1000
Mailing Address: PO BOX 50095 SEATTLE, WA 98145
Mailing Phone: (206) 543-6420
Is Sole Proprietor?: No
Enumeration Date: 10-27-2006
Last Update Date: 01-21-2012
Code Navigator

An internist like Joan Clark 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 Pulmonary Disease
Taxonomy Code: 207RP1001X
Type: Allopathic & Osteopathic Physicians
License No.: MD00022064
License State: WA
Taxonomy Description: An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

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
8886129	MEDICARE PIN (08)	WA
0230887	OTHER (01)	WV	L&I
E72745	MEDICARE UPIN (02)
3003	OTHER (01)		INTERNAL ID-MOTOR VEHICLE ID
1386720126	MEDICAID (05)	WI

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 1386720126, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 0

Pos 8

Unchanged

Pos 9

Doubled → 4

Check

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 8 → 16 → 7 7 → 14 → 5 0 → 0 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 6 + 6 + 1 + 4 + 2 + 0 + 1 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1386720126.