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

Dr. Gary Allan Fennig Jr., DO

Individual provider Anesthesiology Physician · NPI 1225279151

Dr. Gary Allan Fennig Jr., DO practises Anesthesiology in Lakeland, Florida. Graduated from Ohio University, College of Osteopathic Medicine in 2009, 17 years ago. Practices with Watson Clinic LLP, a 362-clinician group and accepts Medicare assignment. Licensed in Florida and Ohio.

Years since qualifying
17
Trained at
Ohio University, College of Osteopathic Medicine
Licensed in
FL, OH
In the registry since
2009
Specialties on file
4
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

1600 Lakeland Hills Blvd
Lakeland, FL 33805-3019
Phone: (863) 680-7000
Fax: (866) 264-8519
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence OS17262 (FL)
Anesthesiology Physician Taxonomy 207L00000X · Licence 34 010736 (OH)
Anesthesiology Physician Taxonomy 207L00000X · Licence 17262 (FL)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1225279151
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 24, 2009
Last updated in NPPESFebruary 1, 2022
Certification dateFebruary 1, 2022

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolOHIO UNIVERSITY, COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2009 (17 years in practice)
Group practice Watson Clinic Llp — 362 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients111
Services billed 116 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Watson Clinic LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 362 clinicians in the practice; 12 are shown here.

Other providers in Lakeland