Melissa Duncanson MD Inc
NPI 1558933911 · Obstetrics & Gynecology Physician · San Mateo, CA
Melissa Duncanson MD Inc is a Obstetrics & Gynecology Physician organization in San Mateo, CA (NPI 1558933911).
Provider details
- NPI number
- 1558933911
- Entity type
- Organization
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Melissa Duncanson, Physician(650) 867-0669
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-07-14
- Last updated
- 2021-07-14
- Certified
- 2021-07-14
Frequently asked questions
- What is Melissa Duncanson MD Inc's NPI number?
- Melissa Duncanson MD Inc's National Provider Identifier (NPI) is 1558933911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Melissa Duncanson MD Inc?
- Melissa Duncanson MD Inc is classified in the NPPES registry as Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Melissa Duncanson MD Inc located?
- Melissa Duncanson MD Inc's practice location on file with NPPES is 136 N San Mateo Dr Ste 101, San Mateo, CA 94401-2779.
- What is Melissa Duncanson MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Melissa Duncanson MD Inc is (650) 344-1114.
- Who is the authorized official for Melissa Duncanson MD Inc?
- The authorized official listed on Melissa Duncanson MD Inc's NPPES record is Melissa Duncanson, Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Melissa Duncanson MD Inc's NPI active?
- Yes — Melissa Duncanson MD Inc's NPI (1558933911) is active in the NPPES registry as of the last update on 2021-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.