Karen Sommer, NP
NPI 1932143591 · Adult Health Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Sommer, NP is a Adult Health Nurse Practitioner provider in Boston, MA (NPI 1932143591).
Provider details
- NPI number
- 1932143591
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 176943 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lorazepam | 30 | 13 |
| Ondansetron Hcl | 28 | 21 |
| Omeprazole | 25 | 13 |
| Oxycodone Hcl | 21 | 13 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 20 | — |
| Mirtazapine | 20 | — |
| Lipase/Protease/Amylasebrand: Creon | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2013-05-29
Frequently asked questions
- What is Karen Sommer's NPI number?
- Karen Sommer's National Provider Identifier (NPI) is 1932143591, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Sommer's specialty?
- Karen Sommer is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Sommer located?
- Karen Sommer's practice location on file with NPPES is 450 Brookline Ave # Dana1217, Boston, MA 02215-5418.
- What is Karen Sommer's phone number?
- The practice phone number listed in the NPPES registry for Karen Sommer is (617) 632-5319.
- Does Karen Sommer accept Medicare?
- Karen Sommer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Sommer's NPI active?
- Yes — Karen Sommer's NPI (1932143591) is active in the NPPES registry as of the last update on 2013-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.