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

Zachary Thomas Fellows, MD

Individual provider Obesity Medicine (Internal Medicine) Physician · NPI 1154733152

Zachary Thomas Fellows, MD is a Rheumatology in Carlsbad, California. Qualified in 2014, 12 years ago. Accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
12
Licensed in
CA
In the registry since
2014
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

6120 Paseo Del Norte Ste L2
Carlsbad, CA 92011-1149
Phone: (760) 891-4687
Fax: (760) 684-8715
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence A144510 (CA)
Obesity Medicine (Internal Medicine) Physician Taxonomy 207RB0002X · Licence A144510 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A144510 (CA)

Record details

NPI number1154733152
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2014
Last updated in NPPESJanuary 18, 2026
Certification dateJanuary 18, 2026

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare