Doctor profile · Federal record

Dr. Hee Oh, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · West Covina, CA

  • NPI 1225106693
  • Accepts Medicare
  • 58 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1433 W Merced Ave Ste 207
West Covina, CA 917903402
(626) 962-2421
fax (626) 962-8345

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
December 16, 2011
Year of graduation
1968 — 58 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #CG258Y
Medicaid (2)
CA #00A343520 · CA #00CG258Y0

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225106693. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,110
Distinct HCPCS
10
Medicare allowed
$82,861
HCPCS Description Services Patients Avg allowed
99458 Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 323 27 $43
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 183 27 $54
99214 Established patient office or other outpatient visit, 30-39 minutes 178 63 $139
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 97 23 $58
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 48 15 $67
99442 Telephone medical discussion with physician, 11-20 minutes 46 34 $98
99443 Telephone medical discussion with physician, 21-30 minutes 43 23 $138
99213 Established patient office or other outpatient visit, 20-29 minutes 42 31 $98
36410 Insertion of needle into vein (3 years or older) 38 26 $19
99453 Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment 26 26 $22

In context: peer comparison

Among 9 peers in West Covina Internal Medicine Physician, average services per provider: 176. This provider delivers 6.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,231
Transactions
26
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 12 $729.48
Lilly USA, LLC 5 $163.65
Amgen INC. 1 $150.00
Abbvie INC. 5 $99.93
Aimmune Therapeutics, INC. 2 $64.38
Novo Nordisk INC 1 $23.64

By nature of payment

Food and Beverage
$1,231

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,514
Patients
483
Total drug cost
$146,634
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 276 92 $4,131
Losartan Potassium Generic 218 64 $3,698
Tamsulosin Hcl Generic 181 48 $3,204
Amlodipine Besylate Generic 168 56 $1,955
Metformin Hcl Generic 97 32 $1,289
Omeprazole Generic 82 27 $995
Farxiga (Dapagliflozin Propanediol) Brand 79 20 $66,954
Metformin Hcl ER (Metformin Hcl) Brand 64 18 $545
Sildenafil Citrate Generic 59 16 $1,000
Pantoprazole Sodium Generic 56 24 $712

Frequently asked questions

Auto-generated from federal data
What is Dr. Hee Oh's medical specialty?
Dr. Hee Oh practices Internal Medicine Physician in West Covina, CA.
Where does Dr. Hee Oh practice?
Dr. Hee Oh practices at 1433 W Merced Ave Ste 207, West Covina, CA 917903402. Office phone: 6269622421.
What is Dr. Hee Oh's NPI?
Dr. Hee Oh's National Provider Identifier (NPI) is 1225106693, issued by NPPES.
Does Dr. Hee Oh accept Medicare assignment?
Yes. Dr. Hee Oh accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hee Oh commonly perform?
Top Medicare-reported procedures in 2023: Management using the results of remote vital sign monitoring per calendar month (HCPCS 99458); Management using the results of remote vital sign monitoring per calendar month (HCPCS 99457); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.