Alexis Herrera, MSN, AGACNP-BC
NPI 1598249666 · Gerontology Nurse Practitioner · New Haven, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexis Herrera, MSN, AGACNP-BC is a Gerontology Nurse Practitioner provider in New Haven, CT (NPI 1598249666).
Provider details
- NPI number
- 1598249666
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, AGACNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 9426768 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
40 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 29 | $119 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 11 | $13 |
Typical Medicare-allowed amounts for these services range $13–$119 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 30 | 29 |
| Metoprolol Succinate | 26 | 26 |
| Diltiazem Hclbrand: Diltiazem 24hr Er (cd) | 16 | 15 |
| Losartan Potassium | 15 | 14 |
| Furosemide | 13 | 13 |
| Rosuvastatin Calcium | 13 | 12 |
| Triamterene/Hydrochlorothiazidbrand: Triamterene-Hydrochlorothiazid |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-09-24
- Last updated
- 2025-09-09
- Certified
- 2025-09-09
Frequently asked questions
- What is Alexis Herrera's NPI number?
- Alexis Herrera's National Provider Identifier (NPI) is 1598249666, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexis Herrera's specialty?
- Alexis Herrera is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexis Herrera located?
- Alexis Herrera's practice location on file with NPPES is 20 York Street, Cb-2041, New Haven, CT 06510-3220.
- What is Alexis Herrera's phone number?
- The practice phone number listed in the NPPES registry for Alexis Herrera is (203) 688-4748.
- Does Alexis Herrera accept Medicare?
- Alexis Herrera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexis Herrera's NPI active?
- Yes — Alexis Herrera's NPI (1598249666) is active in the NPPES registry as of the last update on 2025-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.