Karen Lefkowitz, APRN
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 1493 Cambridge Street, Cambridge, MA 02139
- Practice phone
- Call (617) 665-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Karen Lefkowitz's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Karen Lefkowitz is a nurse practitioner in Cambridge, Massachusetts
Karen Lefkowitz practices at CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance.
Karen Lefkowitz's NPI, 1538212089, was assigned on January 19, 2007. Karen Lefkowitz holds Massachusetts license 201626.
- NPI
- 1538212089NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163457953
- NPI enumeration date
- January 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 665-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Lefkowitz practices at CHA Cambridge Hospital in Cambridge, Massachusetts
Karen Lefkowitz's primary practice is CHA Cambridge Hospital, at 1493 Cambridge Street, Cambridge, MA 02139 in Middlesex County. The practice phone is (617) 665-1000.
- CHA Cambridge Hospital1493 Cambridge Street, Cambridge, MA 02139 · Middlesex CountyPhone(617) 665-1000
Source: Dmand AI Affiliation Data
Karen Lefkowitz is affiliated with 2 sites of care and 1 medical group
Karen Lefkowitz's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance. The medical group on file is Cambridge Health Alliance. Dmand AI also links Karen Lefkowitz to 1 more group practice or clinic, named with a free account. Karen Lefkowitz's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Lefkowitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Lefkowitz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHA Cambridge Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Cambridge Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Karen Lefkowitz is one of 2,511 nurse practitioners in Massachusetts
Nurse practitioner is Karen Lefkowitz's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Karen Lefkowitz is licensed in Massachusetts.
Specialties and state licenses
- Nurse practitioner, MassachusettsPrimary
Nurse practitioners near Karen Lefkowitz
Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Karen Lefkowitz's patients have a median age of 33
Across all payers, Dmand AI patient panel data puts Karen Lefkowitz's median patient age at 33, with 100% women.
Karen Lefkowitz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 33
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Karen Lefkowitz scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Karen Lefkowitz for performance year 2024, reported as part of a group. Karen Lefkowitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Karen Lefkowitz's MIPS scores, performance year 2024
- 91of 100Final score
- 77.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
Sources for Karen Lefkowitz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Karen Lefkowitz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Lefkowitz's NPI number?
Karen Lefkowitz's NPI number is 1538212089. It was assigned on January 19, 2007, and it is active in the NPI Registry.
What does Karen Lefkowitz specialize in?
Karen Lefkowitz is a nurse practitioner in Cambridge, Massachusetts. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Karen Lefkowitz practice?
Karen Lefkowitz practices at 1493 Cambridge Street, Cambridge, MA 02139. Karen Lefkowitz's primary practice is CHA Cambridge Hospital in Cambridge, Massachusetts, part of Cambridge Health Alliance. Dmand AI also links Karen Lefkowitz to 1 group practice or clinic.
What is Karen Lefkowitz's office phone number?
The practice phone on file for Karen Lefkowitz is (617) 665-1000.
What is Karen Lefkowitz's medical license number?
Karen Lefkowitz holds Massachusetts license 201626.
Which hospitals is Karen Lefkowitz affiliated with?
Karen Lefkowitz practices at CHA Cambridge Hospital in Cambridge, Massachusetts.
What medical group is Karen Lefkowitz part of?
Karen Lefkowitz is linked to Cambridge Health Alliance.
Does Karen Lefkowitz accept Medicare?
Yes. CMS lists Karen Lefkowitz as accepting Medicare assignment.
What is Karen Lefkowitz's MIPS score?
Karen Lefkowitz's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How long has Karen Lefkowitz been practicing?
Karen Lefkowitz graduated from medical school in 1993, 33 years ago.
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