JASON W. HARPER MD – NPI #1336305911
Internal Medicine

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Health Care Provider Taxonomy Code for Internal Medicine

JASON HARPER is a physician located in SEATTLE, WA. NPPES has assigned the NPI number 1336305911 to JASON HARPER on August 02, 2008. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RG0100X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Gastroenterology

The NPI profile was last updated on Jan 12, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for JASON HARPER below.

NPI Profile for
JASON W. HARPER

NPI Number
1336305911
Enumeration Date

(about 18 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
JASON W. HARPER
Credentials
MD
Primary location
1221 MADISON ST STE 1220
SEATTLE, WA 98104-1356
Phone: (206) 215-4250 Fax: (206) 215-4252
1 Other location(s):
751 NE Blakely Dr Ste 3020
Issaquah, WA 98029-6201
Phone: (425) 313-5345
Fax: (425) 313-4704
Mailing address
PO BOX 25608
SALT LAKE CITY, UT 84125-0608
Phone: (206) 320-4476 Fax:
Sole Proprietor
No
Updated
Certification Date
Jan 12, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for JASON HARPER

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
medicaidWA2018493
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RG0100X
- Internal Medicine / Gastroenterology (Primary)		 WA MD60238161
207R00000X
- Internal Medicine		 WA MD60238161

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS - Graduated 2008
Offers Telehealth Services
Yes - Telehealth services allows you to talk to your health care provider using audio/video communications, such as Zoom, without actually going in to the doctor's office
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
JASON HARPER is affiliated with the following medical group(s):
  • HOSPITAL
    • HARBORVIEW MEDICAL CENTER
      325 9TH AVENUE
      SEATTLE, WA 98104
    • UNIVERSITY OF WASHINGTON MEDICAL CTR
      1959 NE PACIFIC ST BOX 356151
      SEATTLE, WA 98195

Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.

How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.

Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.