Carmen Ayala
NPI 1649426750 · Family Nurse Practitioner · Fairfax, VA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carmen Ayala is a Family Nurse Practitioner provider in Fairfax, VA (NPI 1649426750).
Provider details
- NPI number
- 1649426750
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 0024167945 (VA)
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
290 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) |
|---|---|---|
| Test Or Measurement for Functional Capacity, Each 15 Minutes97750 | 56 | $26 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 51 | $82 |
| Administration of Psychological Or Neuropsychological Test, First 30 Minutes96136 | 33 | $37 |
| Administration of Psychological Or Neuropsychological Test, Each Additional 30 Minutes96137 | 33 | $34 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $120 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 68 | 29 |
| Amlodipine Besylate | 48 | 18 |
| Levothyroxine Sodium | 48 | 14 |
| Omeprazole | 47 | 12 |
| Alprazolam | 39 | — |
| Lisinopril | 33 | 13 |
| Levothyroxine Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$993 across 37 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
Additional practice locations (1)
- 1800 North Beauregard Street, Suite 250Alexandria, VA 22311-5879Phone: (703) 370-2400Fax: (703) 370-7214
Registry dates
- Enumerated
- 2008-08-08
- Last updated
- 2026-03-24
- Certified
- 2026-03-24
Frequently asked questions
- What is Carmen Ayala's NPI number?
- Carmen Ayala's National Provider Identifier (NPI) is 1649426750, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carmen Ayala's specialty?
- Carmen Ayala is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carmen Ayala located?
- Carmen Ayala's practice location on file with NPPES is 3620 Joseph Siewick Dr Ste 203, Fairfax, VA 22033-1756.
- What is Carmen Ayala's phone number?
- The practice phone number listed in the NPPES registry for Carmen Ayala is (703) 941-0267.
- Does Carmen Ayala accept Medicare?
- Carmen Ayala is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carmen Ayala's NPI active?
- Yes — Carmen Ayala's NPI (1649426750) is active in the NPPES registry as of the last update on 2026-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.