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

MS. Mary T Obrien, RNMSNCNM

Individual provider Advanced Practice Midwife · NPI 1083614994

MS. Mary T Obrien, RNMSNCNM is registered under Certified Nurse Midwife (CNM) in Holyoke, Massachusetts. Qualified in 1985, 41 years ago. Practices with Holyoke Medical Center Inc, a 201-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
41
Licensed in
MA
In the registry since
2005

Practice location Address checks out

230 Maple St Ste 200 Midwifery Care OF Holyoke
Holyoke, MA 01040-6513 Not confirmed with CMS for 10 years — call before visiting
Phone: (413) 535-4700
Fax: (413) 535-4704
Show map & directions

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

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence 188081 (MA)

Record details

NPI number1083614994
Entity typeIndividual (Type 1)
GenderFemale
Credentials RNMSNCNM
Sole proprietorNo
NPI enumeratedJuly 21, 2005
Last updated in NPPESJuly 6, 2016

Medicare enrollment

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

Medicare specialtyCERTIFIED NURSE MIDWIFE (CNM)
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Group practice Holyoke Medical Center Inc — 201 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients18
Services billed 31 a service is one billed item, such as a visit, a test or a procedure
Average patient age45

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Holyoke Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 201 clinicians in the practice; 12 are shown here.

Other providers in Holyoke