NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Katrin Sara Sadigh, M.D.

Internal Medicine Physician in Harwich, MA · enumerated 2013 · practices at Cape Cod Pet/Ct Services, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770928681

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Katrin Sara Sadigh
Credential M.D.
Sex Female
Practice address Harwich, MA, 02645
Phone (508) 430-3322
Enumeration date May 6, 2013
Last updated in NPPES Dec 18, 2019

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 277713 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Katrin Sadigh practice?
The practice location on file with NPPES is in Harwich, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katrin Sadigh?
The National Provider Identifier (NPI) for Katrin Sadigh is 1770928681, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-18.