Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Howard Linzer, DO

Individual provider Family Medicine Physician · NPI 1164426912

Howard Linzer, DO is registered under Family Practice in Naples, Florida. Graduated from Des Moines University of Osteopathic Medicine and Health Sciences in 1997, 29 years ago. Practices with MD Now Medical Centers Inc, a 316-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
29
Trained at
Des Moines University of Osteopathic Medicine and Health Sciences
Licensed in
FL
In the registry since
2005
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

6400 Davis Blvd Ste 103
Naples, FL 34104-5321 Not confirmed with CMS for 13 years — call before visiting
Phone: (239) 775-2300
Fax: (239) 775-4312
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence OS0007727 (FL)

Record details

NPI number1164426912
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 9, 2005
Last updated in NPPESAugust 30, 2013

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolDES MOINES UNIVERSITY OF OSTEOPATHIC MEDICINE AND HEALTH SCIENCES
Graduated 1997 (29 years in practice)
Group practice Md Now Medical Centers Inc — 316 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients117
Services billed 239 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at MD Now Medical Centers Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 316 clinicians in the practice; 12 are shown here.

Other providers in Naples