Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Nihaal Prashant Karnik, MD

Individual provider Internal Medicine Physician · NPI 1407384852

Nihaal Prashant Karnik, MD is a Gastroenterology in Seattle, Washington. Qualified in 2016, 10 years ago. Practices with Geisinger Clinic, a 3,413-clinician group and accepts Medicare assignment. Licensed in Pennsylvania and Washington.

Years since qualifying
10
Licensed in
PA, WA
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1100 9th Ave
Seattle, WA 98101-2756
Phone: (206) 223-2319
Fax: (206) 341-1405
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD61414810 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MT213556 (PA)

Record details

NPI number1407384852
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 30, 2017
Last updated in NPPESSeptember 29, 2023
Certification dateSeptember 29, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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