Doctor profile · Federal record

Dr. Katherine Oakley, M.D.

General Practice Physician · Student in an Organized Health Care Education/Training Program · Claremont, CA

  • NPI 1083064935
  • MIPS 73.6 / 100 · 2023
  • 10 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1601 Monte Vista Ave Ste 190
Claremont, CA 917116600
(909) 865-9977
Additional location
400 N Pepper Ave
Colton, CA 923241801
(855) 422-8029

Credentials & registration

NPPES · NUCC
NPI registered
June 2016 — 10 yrs on file
Profile last updated
December 6, 2021
Specialty taxonomy
208D00000X — NUCC code
State license (1)
California #A157730

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083064935. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
70
Distinct HCPCS
2
Medicare allowed
$7,490
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 41 30 $88
99214 Established patient office or other outpatient visit, 30-39 minutes 29 21 $133

In context: peer comparison

Among 1 peers in Claremont General Practice Physician, average services per provider: 35. This provider delivers 2.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
782
Patients
370
Total drug cost
$12,680
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 97 52 $1,306
Losartan Potassium Generic 88 44 $1,364
Levothyroxine Sodium Generic 80 39 $1,547
Amlodipine Besylate Generic 77 38 $633
Lisinopril Generic 74 32 $802
Gabapentin Generic 54 29 $879
Rosuvastatin Calcium Generic 44 23 $2,020
Simvastatin Generic 40 16 $408
Tamsulosin Hcl Generic 36 16 $942
Alendronate Sodium Generic 35 21 $346

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Oakley's medical specialty?
Dr. Katherine Oakley practices General Practice Physician in Claremont, CA.
Where does Dr. Katherine Oakley practice?
Dr. Katherine Oakley practices at 1601 Monte Vista Ave Ste 190, Claremont, CA 917116600. Office phone: 9098659977.
What is Dr. Katherine Oakley's NPI?
Dr. Katherine Oakley's National Provider Identifier (NPI) is 1083064935, issued by NPPES.
What procedures does Dr. Katherine Oakley commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.