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

Donald Theodore Mehlhorn, DO

Individual provider Internal Medicine Physician · NPI 1912584947

Donald Theodore Mehlhorn, DO is an Internal Medicine in Naples, Florida. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2021, 5 years ago. Practices with Central Florida Inpatient Medicine LLC, a 117-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
5
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
FL
In the registry since
2021
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

350 7th St N
Naples, FL 34102-5754
Phone: (239) 624-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 525 Technology Park Ste 109, Lake Mary, FL 32746-7107 — (407) 647-2346

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OS20951 (FL)

Record details

NPI number1912584947
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 25, 2021
Last updated in NPPESMay 22, 2025
Certification dateMay 22, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2021 (5 years in practice)
Group practice Central Florida Inpatient Medicine Llc — 117 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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