Karen Ann Duguay, FNP-BC
Family Nurse Practitioner · Boston, MA
Karen Ann Duguay, FNP-BC is a family nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1114535267, issued on Jul 15, 2020. Check the license (Massachusetts RN2266759, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Ann Duguay
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- RN2266759 MA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Massachusetts Avenue, Boston, MA 02118
- Phone
- (617) 414-7399
- Enumerated
- Jul 15, 2020
- Record last updated
- Jun 14, 2024
- Fax
- (617) 414-4676
- Medicaid IDs
- 3144272 NH
110163518A MA - Medicare enrollment
- Enrolled (PECOS I20210820001196); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,724 in Massachusetts → Look up another NPI →
Also registered at 801 Massachusetts Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Ann Duguay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2266759Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average family nurse practitioner in 2024
2,644 Medicare Part D claims for 175 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium197 claims
- Sertraline Hcl145 claims
- Eliquis141 claims
- Levothyroxine Sodium122 claims
- Lisinopril110 claims
- Furosemide81 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Evans Medical Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Ann Duguay among 4,724 family nurse practitioner records in Massachusetts
Karen Ann Duguay, FNP-BC is one of 4,724 family nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 60% of them.
- NPI issued2020 · 60% of these records are older, 33% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2020 · median 2019 among the 2,704 with a school on file
- Record last updated2024 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
938 family nurse practitioner records list a practice address in Boston
They are 938 of the 41,865 NPPES records with a practice address in Boston, and 4,724 family nurse practitioner records in Massachusetts.
All 4,724 in Massachusetts → Every provider in Boston → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Marjorie Arvedon, FNPBoston, MA 021181376529842
- Ellen Bitz, NPBoston, MA 021181649254798
- Lois Doerr, NPBoston, MA 021181194784546
- Karen Friedman, MS RNC FNPBoston, MA 021181861421299
- Faye Huang, NPBoston, MA 021181366432353
- Terri Lacoursiere Zucchero, PHD, RN, FNP-BCBoston, MA 021181770565475
- Claire Murphy, NP-CBoston, MA 021181568447217
- Nancy Paull, NPBoston, MA 021181457466914
Common questions
What is Karen Ann Duguay, FNP-BC's NPI number?
Karen Ann Duguay, FNP-BC's National Provider Identifier (NPI) is 1114535267, issued on Jul 15, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Karen Ann Duguay, FNP-BC located?
The NPPES record lists a practice address at 801 Massachusetts Avenue, Boston, MA, 02118. Phone: (617) 414-7399. Providers update this record themselves, so call before visiting.
How can I verify Karen Ann Duguay, FNP-BC's license?
NPPES lists Massachusetts license number RN2266759, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Ann Duguay, FNP-BC prescribe under Medicare Part D?
In 2024, Karen Ann Duguay, FNP-BC had 2,644 Medicare Part D claims for 175 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.