Physician Profile
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License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
15655 CYPRESS WOOD MEDICAL DR STE 100
Houston, TX 77014
17198 St Lukes Way Ste 540
The Woodlands, TX 77384
Michael S. Mackelvie is an OB-GYN in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Michael S. Mackelvie is listed at 15655 Cypress Wood Medical Dr Ste 100, Houston, TX 77014. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (713) 442-1700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Michael S. Mackelvie's National Provider Identifier is 1154748119. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Michael S. Mackelvie attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
Michael S. Mackelvie has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Michael S. Mackelvie. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.