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

Doriann Klaassen, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1043721632

Doriann Klaassen, MD is an Endocrinology in Hyannis, Massachusetts. Qualified in 2018, 8 years ago. Practices with Medical Affiliates of Cape Cod Inc, a 235-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
8
Licensed in
MA
In the registry since
2017
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1030 Falmouth Rd # 201
Hyannis, MA 02601-2324
Phone: (774) 470-5080
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 1020815 (MA)

Record details

NPI number1043721632
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 23, 2017
Last updated in NPPESFebruary 5, 2025
Certification dateFebruary 5, 2025
Mailing address1030 Falmouth Rd # 201, Hyannis, MA 02601-2324

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Medical Affiliates Of Cape Cod Inc — 235 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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