Kathryn Sowerwine
About this NPIWhat this record shows.
NPI 1477712867 is registered to Kathryn Sowerwine, a Internal Medicine practising at 3800 Reservoir Rd Nw in Washington, Washington DC. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Kathryn Sowerwine has been enumerated in the National Provider Identifier (NPI) registry since 2008.
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Medicare enrollment
This provider holds 14 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20090731000391Internal MedicineDC
- I20231219001135Internal MedicineDE
- I20231220000015Internal MedicineTX
- I20240509001088Internal MedicineNY
- I20240516001161Internal MedicineME
- I20240603000323Internal MedicineMA
- I20240614001708Internal MedicineIN
- I20240617000025Internal MedicineNH
- I20240617000392Internal MedicineVA
- I20240619000570Internal MedicineCT
- I20240624001026Internal MedicineRI
- I20240625000444Internal MedicineMO
- I20240628001311Internal MedicineNC
- I20250507003280Internal MedicineAR
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Kathryn Sowerwine accepts. To confirm in-network status with your specific health plan, contact Kathryn Sowerwine directly at (202) 444-2600.
Frequently asked
Yes. NPI 1477712867 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (202) 444-2600.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Kathryn Sowerwine is a Type-1 individual NPI.