Doctor profile · Federal record

Dr. Willard Chung, MD

Family Medicine Physician (CMS: Family Practice) · Santa Maria, CA

  • NPI 1285898635
  • Accepts Medicare
  • MIPS 90.2 / 100 · 2023
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
235 S Palisade Dr
Santa Maria, CA 93454
(805) 739-3561

Credentials & registration

NPPES · NUCC
NPI registered
July 2008 — 18 yrs on file
Profile last updated
December 20, 2022
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A104456

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285898635. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
816
Distinct HCPCS
10
Medicare allowed
$103,410
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 289 151 $122
99239 Hospital discharge day management, more than 30 minutes 115 113 $119
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 78 59 $81
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 73 72 $178
99213 Established patient office or other outpatient visit, 20-29 minutes 59 52 $99
99214 Established patient office or other outpatient visit, 30-39 minutes 47 35 $139
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 30 27 $141
99291 Critical care, first 30-74 minutes 27 16 $217
99215 Established patient office or other outpatient visit, 40-54 minutes 23 12 $194
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 21 17 $114

In context: peer comparison

Among 31 peers in this city , average services per provider: 141. This provider delivers 5.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
332
Patients
50
Total drug cost
$28,057
Drug Type Claims Patients Total cost
Lisinopril Generic 51 0 $378
Levothyroxine Sodium Generic 32 11 $397
Metformin Hcl Er (Metformin Hcl) Brand 27 0 $99
Furosemide Generic 26 0 $70
Atorvastatin Calcium Generic 24 12 $190
Fenofibrate (Fenofibrate Nanocrystallized) Brand 22 0 $254
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 22 11 $635
Eliquis (Apixaban) Brand 20 0 $15,446
Amlodipine Besylate Generic 18 0 $73
Omeprazole Generic 18 0 $84

Frequently asked questions

Auto-generated from federal data
What is Dr. Willard Chung's medical specialty?
Dr. Willard Chung practices Family Medicine Physician in Santa Maria, CA.
Where does Dr. Willard Chung practice?
Dr. Willard Chung practices at 235 S Palisade Dr, Santa Maria, CA 93454. Office phone: 8057393561.
What is Dr. Willard Chung's NPI?
Dr. Willard Chung's National Provider Identifier (NPI) is 1285898635, issued by NPPES.
Does Dr. Willard Chung accept Medicare assignment?
Yes. Dr. Willard Chung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Willard Chung commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.