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

Grace K Austin, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1295052124

Grace K Austin, MD practises Otolaryngology in Valencia, California. Graduated from Rutgers R W Johnson Medical School (CAM/NEW Bruns/Pisc) in 2010, 16 years ago. Practices with Geoffrey Trenkle DO a Professional Medical Corporation, an 18-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and North Carolina.

Years since qualifying
16
Trained at
Rutgers R W Johnson Medical School (CAM/NEW Bruns/Pisc)
Licensed in
CA, NC
In the registry since
2010
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Valencia, CA

No coordinates on file. Search this address in Google Maps

Additional practice locations (2)

  • 501 S Buena Vista St, Burbank, CA 91505-4809 — (818) 847-6049
  • 800 Fairmount Ave Ste 411, Pasadena, CA 91105-3155 — (323) 306-9632

Specialties & licences

Facial Plastic Surgery Physician (primary) Taxonomy 207YS0123X · Licence A145433 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 164582 (NC)
Plastic Surgery within the Head & Neck (Otolaryngology) Physician Taxonomy 207YX0007X · Licence A145433 (CA)

Record details

NPI number1295052124
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 3, 2010
Last updated in NPPESFebruary 2, 2026
Certification dateFebruary 2, 2026

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolRUTGERS R W JOHNSON MEDICAL SCHOOL (CAM/NEW BRUNS/PISC)
Graduated 2010 (16 years in practice)
Group practice Geoffrey Trenkle Do A Professional Medical Corporation — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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.

Melanoma (skin cancer) excision 1–10 times
Skin biopsy 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 patients96
Services billed 286 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

  • Providence Holy Cross Medical Center Hospital · Mission Hills, CA
  • Providence Saint Joseph Medical Ctr Hospital · Burbank, CA

Colleagues at Geoffrey Trenkle DO a Professional Medical Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 18 clinicians in the practice; 12 are shown here.

Other providers in Valencia