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

Dr. Clayton Thomas Naddell, MD

Individual provider Internal Medicine Physician · NPI 1699126904

Dr. Clayton Thomas Naddell, MD practises Internal Medicine in Mission Hills, California. Graduated from Morehouse School of Medicine in 2016, 10 years ago. Practices with Healthcare Partners Affiliates Medical Group, a 790-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
10
Trained at
Morehouse School of Medicine
Licensed in
CA
In the registry since
2016
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

11600 Indian Hills Rd Ste 102
Mission Hills, CA 91345-1225
Phone: (818) 838-4500
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 1120 W Washington Blvd, Los Angeles, CA 90015-3316 — (213) 623-2225

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A156330 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1699126904
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 28, 2016
Last updated in NPPESMarch 9, 2026
Certification dateMarch 9, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMOREHOUSE SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Healthcare Partners Affiliates Medical Group — 790 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients82
Services billed 284 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Healthcare Partners Affiliates Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 790 clinicians in the practice; 12 are shown here.

Other providers in Mission Hills