Doctor profile · Federal record
Dr. Young Ko, MD
Internal Medicine Physician (CMS: Internal Medicine) · Critical Care Medicine (Internal Medicine) Physician · Pulmonary Disease Physician · Lancaster, CA
- NPI 1639277130
- Accepts Medicare
- MIPS 29.2 / 100 · 2023
- 53 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
44215 15Th St West, Suite 303
Lancaster, CA 93534
(661) 945-0723
fax (661) 949-5740
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1973 — 53 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A39814
- Medicaid
- CA #00A398140
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639277130. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,415
Distinct HCPCS
10
Medicare allowed
$554,888
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,218 | 126 | $83 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,184 | 370 | $122 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 854 | 303 | $190 | |
99291 |
Critical care, first 30-74 minutes | 249 | 121 | $222 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 208 | 24 | $1 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 156 | 132 | $182 | |
94640 |
Inhalation treatment for airway obstruction or sputum production | 137 | 137 | $10 | |
94016 |
Test to measure expiratory airflow and volume initiated by patient and evaluated by provider | 136 | 136 | $26 | |
94200 |
Test to measure largest amount of air breathed in an out | 130 | 130 | $17 | |
94726 |
Test to determine lung volumes using sensors | 130 | 130 | $61 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 149. This provider delivers 36× the peer median.Open Payments
Industry payments received
All-time total
$14
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $14.04 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,289
Patients
737
Total drug cost
$380,695
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 438 | 138 | $20,345 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 243 | 52 | $203,234 |
| Ventolin Hfa (Albuterol Sulfate) | Brand | 193 | 47 | $15,601 |
| Amlodipine Besylate | Generic | 157 | 49 | $1,910 |
| Prednisone | Generic | 157 | 73 | $364 |
| Furosemide | Generic | 124 | 43 | $767 |
| Fluticasone Propionate | Generic | 123 | 44 | $2,417 |
| Levothyroxine Sodium | Generic | 122 | 29 | $1,907 |
| Azithromycin | Generic | 114 | 75 | $1,074 |
| Losartan Potassium | Generic | 114 | 30 | $1,659 |
Hospital affiliations
Frequently asked questions
What is Dr. Young Ko's medical specialty?
Dr. Young Ko practices Internal Medicine Physician in Lancaster, CA.
Where does Dr. Young Ko practice?
Dr. Young Ko practices at 44215 15Th St West, Lancaster, CA 93534. Office phone: 6619450723.
What is Dr. Young Ko's NPI?
Dr. Young Ko's National Provider Identifier (NPI) is 1639277130, issued by NPPES.
Does Dr. Young Ko accept Medicare assignment?
Yes. Dr. Young Ko accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Young Ko commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.