Haley Mejias, MMS PA-C
NPI 1962970343 · Physician Assistant · Apache Junction, AZ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Haley Mejias, MMS PA-C is a Physician Assistant provider in Apache Junction, AZ (NPI 1962970343).
Provider details
- NPI number
- 1962970343
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MMS PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 7305 (AZ)
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
7 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
271 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 95 | $105 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 91 | $75 |
| Urinalysis, Manual Test81002 | 21 | $3 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 21 | $12 |
| Insertion of Needle Into Vein (3 Years Or Older)36410 | 17 | $14 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 55 | 21 |
| Levothyroxine Sodium | 50 | 11 |
| Gabapentin | 39 | 13 |
| Alprazolam | 29 | — |
| Omeprazole | 27 | — |
| Metformin Hcl | 24 | — |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$865 across 46 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
- 2018-11-05
- Last updated
- 2026-01-07
- Certified
- 2026-01-07
Frequently asked questions
- What is Haley Mejias's NPI number?
- Haley Mejias's National Provider Identifier (NPI) is 1962970343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Haley Mejias's specialty?
- Haley Mejias is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Haley Mejias located?
- Haley Mejias's practice location on file with NPPES is 300 S Phelps Dr, Apache Junction, AZ 85120-6700.
- What is Haley Mejias's phone number?
- The practice phone number listed in the NPPES registry for Haley Mejias is (480) 536-6850.
- Does Haley Mejias accept Medicare?
- Haley Mejias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Haley Mejias's NPI active?
- Yes — Haley Mejias's NPI (1962970343) is active in the NPPES registry as of the last update on 2026-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.