Donna Hagberg, M.D.
NPI 1578691465 · Specialist · Cos Cob, CT
Donna Hagberg, M.D. is a Specialist provider in Cos Cob, CT (NPI 1578691465).
Provider details
- NPI number
- 1578691465
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 150 | 64 |
| Progesterone, Micronizedbrand: Progesterone | 57 | 19 |
| Valacyclovir Hclbrand: Valacyclovir | 53 | 22 |
| Estradiolbrand: Estradiol (twice Weekly) | 46 | 17 |
| Estradiolbrand: Yuvafem | 40 | 15 |
| Estrogens, Conjugatedbrand: Premarin | 31 | — |
| Estradiolbrand: Estring | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$104 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-01
- Last updated
- 2014-01-15
Frequently asked questions
- What is Donna Hagberg's NPI number?
- Donna Hagberg's National Provider Identifier (NPI) is 1578691465, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donna Hagberg's specialty?
- Donna Hagberg is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Donna Hagberg located?
- Donna Hagberg's practice location on file with NPPES is 31 River Rd, Cos Cob, CT 06807-2152.
- What is Donna Hagberg's phone number?
- The practice phone number listed in the NPPES registry for Donna Hagberg is (203) 742-1150.
- Is Donna Hagberg's NPI active?
- Yes — Donna Hagberg's NPI (1578691465) is active in the NPPES registry as of the last update on 2014-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.