What is Karen Hart's NPI number?

Karen Hart's National Provider Identifier (NPI) is 1255436481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Karen Hart's specialty?

Karen Hart is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Karen Hart located?

Karen Hart's practice location on file with NPPES is 1321 Colby Ave, Everett, WA 98201-1665.

What is Karen Hart's phone number?

The practice phone number listed in the NPPES registry for Karen Hart is (425) 261-2000.

Is Karen Hart's NPI active?

Yes — Karen Hart's NPI (1255436481) is active in the NPPES registry as of the last update on 2021-06-24.

IndividualActive

Karen Hart, MD

NPI 1255436481 · Internal Medicine Physician · Everett, WA

Karen Hart, MD is a Internal Medicine Physician provider in Everett, WA (NPI 1255436481).

Provider details

NPI number: 1255436481
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No
License: 28477 (WA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense MD00028477 (WA)
Allopathic & Osteopathic Physicians
Hospitalist Physician208M00000XLicense 28477 (WA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(100/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
5 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1321 Colby Ave

Everett, WA 98201-1665

Phone: (425) 261-2000

Street-level locationGet directions

More WA providers

Mailing address

Po Box 3360

Portland, OR 97208-3360

Additional practice locations (4)

5549 Old Hwy 93
Florence, MT 59833
Phone: (406) 273-4923
Fax: (406) 329-4174
6 13th Ave E
Polson, MT 59860-5315
Phone: (406) 883-5680
Fax: (406) 883-8262
3901 Hoyt Ave
Everett, WA 98201-4918
Phone: (425) 259-0966
6520 226th Pl Se Ste 100
Issaquah, WA 98027-7365
Phone: (425) 394-1680
Fax: (425) 394-1674

Enumerated: 2006-09-13
Last updated: 2021-06-24
Certified: 2021-06-24

Frequently asked questions

What is Karen Hart's NPI number?: Karen Hart's National Provider Identifier (NPI) is 1255436481, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Karen Hart's specialty?: Karen Hart is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Karen Hart located?: Karen Hart's practice location on file with NPPES is 1321 Colby Ave, Everett, WA 98201-1665.
What is Karen Hart's phone number?: The practice phone number listed in the NPPES registry for Karen Hart is (425) 261-2000.
Is Karen Hart's NPI active?: Yes — Karen Hart's NPI (1255436481) is active in the NPPES registry as of the last update on 2021-06-24.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.