Doctor profile · Federal record

Dr. Madineth Muy, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Lake Forest, CA

  • NPI 1992807721
  • Accepts Medicare
  • 27 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
22621 Lake Forest Dr Ste D1
Lake Forest, CA 926301792
(949) 242-6902
fax (949) 372-3544

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
November 9, 2021
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A73972
Medicaid
CA #00A739720

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992807721. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,175
Distinct HCPCS
10
Medicare allowed
$112,225
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 336 173 $139
36415 Insertion of needle into vein for collection of blood sample 222 122 $8
80053 Blood test, comprehensive group of blood chemicals 186 111 $10
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 178 178 $140
80061 Blood test, lipids (cholesterol and triglycerides) 171 120 $13
99213 Established patient office or other outpatient visit, 20-29 minutes 151 93 $98
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 144 115 $8
83036 Hemoglobin a1c level 139 87 $10
84443 Blood test, thyroid stimulating hormone (tsh) 132 107 $16
81001 Manual urinalysis test with examination using microscope, automated 111 92 $3

In context: peer comparison

Among 1 peers in Lake Forest Internal Medicine Physician, average services per provider: 98. This provider delivers 22× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$537
Transactions
24
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 7 $135.37
Novo Nordisk INC 4 $82.50
Inari Medical, INC. 2 $66.78
Amgen INC. 3 $63.44
Ucb, INC. 1 $43.61
Merck Sharp & Dohme LLC 2 $34.22
Exact Sciences Corporation 1 $30.93
Otsuka America Pharmaceutical, INC. 1 $26.00
Kowa Pharmaceuticals America, INC. 1 $20.20
Edwards Lifesciences Corporation 1 $18.31
Pfizer INC. 1 $15.96

By nature of payment

Food and Beverage
$537

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,893
Patients
556
Total drug cost
$29,588
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 329 100 $4,264
Levothyroxine Sodium Generic 234 67 $4,160
Amlodipine Besylate Generic 155 46 $1,538
Lisinopril Generic 139 39 $1,611
Rosuvastatin Calcium Generic 125 36 $4,323
Metoprolol Succinate Generic 110 29 $2,681
Simvastatin Generic 108 30 $970
Zolpidem Tartrate Generic 105 22 $629
Alprazolam Generic 103 27 $385
Sertraline Hcl Generic 101 31 $1,125

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Madineth Muy's medical specialty?
Dr. Madineth Muy practices Internal Medicine Physician in Lake Forest, CA.
Where does Dr. Madineth Muy practice?
Dr. Madineth Muy practices at 22621 Lake Forest Dr Ste D1, Lake Forest, CA 926301792. Office phone: 9492426902.
What is Dr. Madineth Muy's NPI?
Dr. Madineth Muy's National Provider Identifier (NPI) is 1992807721, issued by NPPES.
Does Dr. Madineth Muy accept Medicare assignment?
Yes. Dr. Madineth Muy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Madineth Muy commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, comprehensive group of blood chemicals (HCPCS 80053). Source: CMS Medicare Physician & Other Practitioners file.