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

Carstensen Internal Medicine PLLC

Organization Internal Medicine Physician · NPI 1699008102

Carstensen Internal Medicine PLLC is an Internal Medicine Physician in Key West, Florida. Licensed in Florida. Registered with an NPI since 2009.

Licensed in
FL
In the registry since
2009
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2505 Flagler Ave
Key West, FL 33040-3934
Phone: (305) 295-6790
Fax: (305) 328-8212
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence ME105681 (FL)

Record details

NPI number1699008102
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Carstensen — Sole Owner Of Pllc · (305) 295-6790
NPI enumeratedSeptember 15, 2009
Last updated in NPPESSeptember 11, 2011
Mailing address731 Waddell Ave, Key West, FL 33040-4779

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