Doctor profile · Federal record

Dr. Kyu Ahn, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Pomona, CA

  • NPI 1427015593
  • Accepts Medicare
  • 49 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1902 Royalty Dr, Ste 140
Pomona, CA 917673038
(909) 620-0389
fax (909) 623-3911

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
May 30, 2019
Year of graduation
1977 — 49 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A35299
Medicaid
CA #00A352990

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427015593. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,218
Distinct HCPCS
10
Medicare allowed
$95,872
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 617 146 $98
36410 Insertion of needle into vein (3 years or older) 196 88 $19
99442 Telephone medical discussion with physician, 11-20 minutes 82 51 $99
99214 Established patient office or other outpatient visit, 30-39 minutes 79 57 $139
G0008 Administration of influenza virus vaccine 69 69 $33
G0444 Annual depression screening, 5 to 15 minutes 39 39 $21
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 37 37 $140
90662 Influenza vaccine split virus, preservative free 35 35 $72
90686 Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage 28 28 $22
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 22 19 $16

In context: peer comparison

Among 11 peers in this city , average services per provider: 358. This provider delivers 3.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$226
Transactions
10
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 7 $152.67
Lilly USA, LLC 1 $29.14
AIMMUNE THERAPEUTICS, INC. 1 $22.73
GlaxoSmithKline, LLC. 1 $21.54

By nature of payment

Food and Beverage
$226

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,911
Patients
1,516
Total drug cost
$657,439
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,053 280 $18,315
Vascepa (Icosapent Ethyl) Brand 801 170 $559,440
Amlodipine Besylate Generic 789 200 $10,500
Losartan Potassium Generic 571 139 $11,361
Metformin Hcl Er (Metformin Hcl) Brand 348 92 $4,790
Metformin Hcl Generic 279 74 $5,040
Levothyroxine Sodium Generic 278 67 $5,144
Tamsulosin Hcl Generic 273 74 $7,706
Metoprolol Succinate Generic 249 66 $6,337
Benazepril Hcl Generic 222 52 $3,670

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kyu Ahn's medical specialty?
Dr. Kyu Ahn practices Internal Medicine Physician in Pomona, CA.
Where does Dr. Kyu Ahn practice?
Dr. Kyu Ahn practices at 1902 Royalty Dr, Pomona, CA 917673038. Office phone: 9096200389.
What is Dr. Kyu Ahn's NPI?
Dr. Kyu Ahn's National Provider Identifier (NPI) is 1427015593, issued by NPPES.
Does Dr. Kyu Ahn accept Medicare assignment?
Yes. Dr. Kyu Ahn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kyu Ahn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein (3 years or older) (HCPCS 36410); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.