Marissa De Leon, PA-C
NPI 1194187682 · Medical Physician Assistant · Harlingen, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa De Leon, PA-C is a Medical Physician Assistant provider in Harlingen, TX (NPI 1194187682).
Provider details
- NPI number
- 1194187682
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA10429 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
145 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 29 | $104 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 14 | $105 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 14 | $15 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 14 | $15 |
Typical Medicare-allowed amounts for these services range $15–$105 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 347 | 119 |
| Metformin Hcl | 234 | 86 |
| Lisinopril | 218 | 85 |
| Losartan Potassium | 199 | 67 |
| Rosuvastatin Calcium | 191 | 73 |
| Metoprolol Succinate | 174 | 63 |
| Levothyroxine Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$549 across 38 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-03-23
- Last updated
- 2018-02-02
Frequently asked questions
- What is Marissa De Leon's NPI number?
- Marissa De Leon's National Provider Identifier (NPI) is 1194187682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa De Leon's specialty?
- Marissa De Leon is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa De Leon located?
- Marissa De Leon's practice location on file with NPPES is 2106 Hale Ave, Harlingen, TX 78550-8408.
- What is Marissa De Leon's phone number?
- The practice phone number listed in the NPPES registry for Marissa De Leon is (956) 423-9111.
- Does Marissa De Leon accept Medicare?
- Marissa De Leon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa De Leon's NPI active?
- Yes — Marissa De Leon's NPI (1194187682) is active in the NPPES registry as of the last update on 2018-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.