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

Mark S. McMahon MD PC

Organization Specialist · NPI 1811260714

Mark S. McMahon MD PC provides Specialist services in New York, New York. Registered with an NPI since 2012.

In the registry since
2012
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

876 Park Ave
New York, NY 10075-1832 Not confirmed with CMS for 14 years — call before visiting
Phone: (212) 717-1405
Fax: (212) 396-3277
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X

Record details

NPI number1811260714
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michelle Carrero — Office Manager/Medical Biller · (212) 717-1405
NPI enumeratedFebruary 23, 2012
Last updated in NPPESFebruary 23, 2012
Mailing address876 Park Ave, New York, NY 10075-1832

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