Mignon Mercado De Leon, MD
Family Medicine Physician · Norristown, PA
Mignon Mercado De Leon, MD is a family medicine physician with a practice address in Norristown, Pennsylvania, and NPI 1023246048, issued on Jun 29, 2009. Check the license (Pennsylvania MT 194898, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mignon Mercado De Leon
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MT 194898 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1330 Powell St, Norristown, PA 19401
- Phone
- (610) 277-0964
- Enumerated
- Jun 29, 2009
- Record last updated
- Jan 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20161115000070); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 7,483 in Pennsylvania → Look up another NPI →
Also registered at 1330 Powell St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer BaumherStudent in an Organized Health Care Education/Training Program1891477436
- Edward Buonocore, MDCardiovascular Disease Physician1740272160
- Paul Casey, MDCardiovascular Disease Physician1609869270
- Nicholas CatulloCertified Registered Nurse Anesthetist1447932231
- Janie Choate, PA-CMedical Physician Assistant1447386354
Verify Mignon Mercado De Leon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MT 194898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
301 Medicare Part D claims for 193 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa22 claims
- Ibuprofen18 claims
- Doxycycline Monohydrate17 claims
- Prednisone15 claims
- Fluticasone Propionate14 claims
- Hydrocortisone13 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: $16.08
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 55,478 providers of this specialty with any payment received $902.55 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
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mignon Mercado De Leon among 7,483 family medicine physician records in Pennsylvania
Mignon Mercado De Leon, MD is one of 7,483 family medicine physician records with a practice address in Pennsylvania. 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 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2003 · median 2005 among the 4,529 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 family medicine physician records list a practice address in Norristown
They are 30 of the 818 NPPES records with a practice address in Norristown, and 7,483 family medicine physician records in Pennsylvania.
All 7,483 in Pennsylvania → Every provider in Norristown → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joseph Calamia, DONorristown, PA 194011841279551
- Joseph Cipriano, MDNorristown, PA 194011326158312
- William Dickerman, D.O.East Norriton, PA 194011487668174
- Ann George, M.D.Norristown, PA 194011861688681
- Michael Kouyoumdjian, D.O.Norristown, PA 194011316938053
- Frank Liu, M.D.Norristown, PA 194011992843940
- Christopher Malsch, D.O.Norristown, PA 194011851356372
- Chandira Mendis, MDEast Norriton, PA 194011669425591
Common questions
What is Mignon Mercado De Leon, MD's NPI number?
Mignon Mercado De Leon, MD's National Provider Identifier (NPI) is 1023246048, issued on Jun 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mignon Mercado De Leon, MD located?
The NPPES record lists a practice address at 1330 Powell St, Norristown, PA, 19401. Phone: (610) 277-0964. Providers update this record themselves, so call before visiting.
How can I verify Mignon Mercado De Leon, MD's license?
NPPES lists Pennsylvania license number MT 194898, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mignon Mercado De Leon, MD prescribe under Medicare Part D?
In 2024, Mignon Mercado De Leon, MD had 301 Medicare Part D claims for 193 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.