Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mrs. Karen Anne Mackinnon, CNM

Individual provider Advanced Practice Midwife · NPI 1346384328

Mrs. Karen Anne Mackinnon, CNM is a Certified Nurse Midwife (CNM) in Westminster, Maryland. Qualified in 2001, 25 years ago. Practices with Johns Hopkins Community Physicians, Inc, a 765-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in District of Columbia and Maryland.

Years since qualifying
25
Licensed in
DC, MD
In the registry since
2007
Specialties on file
2
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

See every abbreviation used in this directory →

Practice location Address checks out

844 Washington Rd Ste 302
Westminster, MD 21157
Phone: (410) 848-6294
Fax: (410) 848-3009
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 10710 Charter Dr Ste 200, Columbia, MD 21044-3259 — (443) 367-4700
  • 193 Stoner Ave, Westminster, MD 21157-5587 — (410) 848-4664

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence R130497 (MD)
Advanced Practice Midwife Taxonomy 367A00000X · Licence RN1015287 (DC)

Record details

NPI number1346384328
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedFebruary 16, 2007
Last updated in NPPESApril 9, 2026
Certification dateApril 9, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED NURSE MIDWIFE (CNM)
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Johns Hopkins Community Physicians, Inc — 765 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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