Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Nadine Koser, DO

Individual provider Internal Medicine Physician · NPI 1467620351

Nadine Koser, DO practises Internal Medicine in Manchester, Connecticut. Graduated from Michigan State University College of Osteopathic Medicine in 2007, 19 years ago. Practices with Midstate Medical Center, a 182-clinician group and accepts Medicare assignment. Licensed in Connecticut and Michigan.

Years since qualifying
19
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
CT, MI
In the registry since
2008
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

71 Haynes St Ste 1209
Manchester, CT 06040-4131 Not confirmed with CMS for 16 years — call before visiting
Phone: (860) 533-6595
Fax: (860) 533-6594
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 049090 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2056720 (MI)

Record details

NPI number1467620351
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 14, 2008
Last updated in NPPESAugust 23, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2007 (19 years in practice)
Group practice Midstate Medical Center — 182 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 patients15
Services billed 19 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Midstate Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 182 clinicians in the practice; 12 are shown here.

Other providers in Manchester