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

Dr. Donna Joan Hagberg, M.D.

Specialist in Cos Cob, CT · enumerated 2007.

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

National Provider Identifier

1578691465

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Donna Joan Hagberg

Credential M.D.

Sex Female

Practice address Cos Cob, CT, 06807

Phone (203) 742-1150

Fax (203) 489-3411

Enumeration date Mar 1, 2007

Last updated in NPPES Jan 15, 2014

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

Taxonomy & licenses

174400000X Specialist Other Service Providers Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
010032695CT05	Other	CT	ANTHEM BLUE CROSS CT NUMB

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 Donna Hagberg practice?

The practice location on file with NPPES is in Cos Cob, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Donna Hagberg?

The National Provider Identifier (NPI) for Donna Hagberg is 1578691465, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Plancher Orthopaedics,Pllc Sports Medicine (Orthopaedic Surgery) Physician · Cos Cob, CT NPI 1922037084 Plancher Orthopaedics & Sports Medicine,Pllc Orthopaedic Surgery Physician · Cos Cob, CT NPI 1811926983 Plancher Orthopaedics,Pllc Specialist · Cos Cob, CT NPI 1114942133 Bruce Molinelli Surgery Physician · Cos Cob, CT NPI 1083788202 Walsh-Brunetti LLC Internal Medicine Physician · Cos Cob, CT NPI 1528114758 Adam Messenger Hospitalist Physician · Cos Cob, CT NPI 1447471784 Plancher Orthopaedics II,Pllc Orthopaedic Surgery Physician · Cos Cob, CT NPI 1396932091 Monica Sheppard Medical Physician Assistant · Cos Cob, CT NPI 1992038962

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-15.