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

Melissa Duncanson MD Inc

Organization Obstetrics & Gynecology Physician · NPI 1558933911

Melissa Duncanson MD Inc is an Obstetrics & Gynecology Physician in San Mateo, California. Registered with an NPI since 2021.

In the registry since
2021
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

136 N San Mateo Dr Ste 101
San Mateo, CA 94401-2779
Phone: (650) 344-1114
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X

Record details

NPI number1558933911
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Melissa Duncanson — Physician · (650) 867-0669
NPI enumeratedJuly 14, 2021
Last updated in NPPESJuly 14, 2021
Certification dateJuly 14, 2021
Mailing address136 N San Mateo Dr Ste 101, San Mateo, CA 94401-2779

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