Doctor profile · Federal record

Dr. Bradford Duncan, MD

Internal Medicine Physician (CMS: Internal Medicine) · Palo Alto, CA

  • NPI 1104932540
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
795 El Camino Real
Palo Alto, CA 943012302
(650) 321-4121
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
January 18, 2023
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A78018

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104932540. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
881
Distinct HCPCS
10
Medicare allowed
$111,730
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 311 231 $110
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 232 232 $160
99214 Established patient office or other outpatient visit, 30-39 minutes 128 107 $155
99212 Established patient office or other outpatient visit, 10-19 minutes 60 58 $70
G0009 Administration of pneumococcal vaccine 31 31 $35
G0008 Administration of influenza virus vaccine 26 26 $38
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 25 25 $76
90671 Pneumococcal conjugate vaccine, 15 valent (pcv15), for intramuscular use 22 22 $241
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 17 16 $66
99215 Established patient office or other outpatient visit, 40-54 minutes 16 16 $218

In context: peer comparison

Among 30 peers in this city , average services per provider: 82. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,637
Patients
456
Total drug cost
$21,845
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 462 124 $5,768
Simvastatin Generic 208 57 $2,258
Amlodipine Besylate Generic 153 45 $1,262
Lisinopril Generic 136 36 $1,348
Rosuvastatin Calcium Generic 113 34 $1,798
Losartan Potassium Generic 84 23 $1,119
Levothyroxine Sodium Generic 61 15 $817
Omeprazole Generic 61 20 $1,154
Triamterene-Hydrochlorothiazid (Triamterene/Hydrochlorothiazid) Brand 58 16 $669
Hydrochlorothiazide Generic 56 16 $378

Frequently asked questions

Auto-generated from federal data
What is Dr. Bradford Duncan's medical specialty?
Dr. Bradford Duncan practices Internal Medicine Physician in Palo Alto, CA.
Where does Dr. Bradford Duncan practice?
Dr. Bradford Duncan practices at 795 El Camino Real, Palo Alto, CA 943012302. Office phone: 6503214121.
What is Dr. Bradford Duncan's NPI?
Dr. Bradford Duncan's National Provider Identifier (NPI) is 1104932540, issued by NPPES.
Does Dr. Bradford Duncan accept Medicare assignment?
Yes. Dr. Bradford Duncan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bradford Duncan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.