Madineth Muy, M.D.
Internal Medicine Physician · Lake Forest, CA
Madineth Muy, M.D. is an internal medicine physician with a practice address in Lake Forest, California, and NPI 1992807721, issued on Sep 2, 2006. Check the license (California A73972, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Madineth Muy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A73972 CA
Self-reported in NPPES; status is on the state search - Practice location
- 22621 Lake Forest Dr Ste D1, Lake Forest, CA 92630
- Phone
- (949) 242-6902
- Enumerated
- Sep 2, 2006
- Record last updated
- Nov 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 372-3544
- Medicaid ID
- 00A739720 CA
- Medicare enrollment
- Enrolled (PECOS I20061121000530); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 22621 Lake Forest Dr Ste D1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Vu, MDFamily Medicine Physician1578068219
Verify Madineth Muy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average internal medicine physician in 2024
4,712 Medicare Part D claims for 400 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 91 claims were for opioids.
Most prescribed
- Atorvastatin Calcium347 claims
- Levothyroxine Sodium244 claims
- Amlodipine Besylate152 claims
- Lisinopril148 claims
- Rosuvastatin Calcium144 claims
- Simvastatin108 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $537.32
24 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Providence Medical FoundationFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Madineth Muy among 17,696 internal medicine physician records in California
Madineth Muy, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1999 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Lake Forest → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sahar Lashin, M.D.Lake Forest, CA 926301598053894
- Suma Oommen, M.D.Lake Forest, CA 926301063431203
- Nicole Sandler, NPLake Forest, CA 926301346933165
- Usha Idnani, M.D.Dana Point, CA 926291861446056
- Rajiv Pathak, M.D.Dana Point, CA 926291265528111
- Laurence Wellikson, M.D.Dana Point, CA 926291770858649
- Adnan Akhtar, D.O.Costa Mesa, CA 926271215126396
- Matthew Boone, MDCosta Mesa, CA 926271487685095
Common questions
What is Madineth Muy, M.D.'s NPI number?
Madineth Muy, M.D.'s National Provider Identifier (NPI) is 1992807721, issued on Sep 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Madineth Muy, M.D. located?
The NPPES record lists a practice address at 22621 Lake Forest Dr Ste D1, Lake Forest, CA, 92630. Phone: (949) 242-6902. Providers update this record themselves, so call before visiting.
How can I verify Madineth Muy, M.D.'s license?
NPPES lists California license number A73972, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Madineth Muy, M.D. prescribe under Medicare Part D?
In 2024, Madineth Muy, M.D. had 4,712 Medicare Part D claims for 400 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.