NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1376924530 FNP-C
Verify on CMS → Katrina Mae Zalavarria, FNP-C
Family Nurse Practitioner in Houston, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 210,832 in Family Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
882
Medicare Part D claims · 258 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Katrina Mae Zalavarria, FNP-C filed 882 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Houston, Texas, prescribing 91% generic.
- 882
- Part D claims, 2023
- 91%
- generic prescribing
- ≥73rd
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Katrina Mae Zalavarria, FNP-C
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1376924530), first enumerated 06/14/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 882 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Katrina Mae Zalavarria, FNP-C's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1376924530 · Family Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1376924530
- ENUM-MID 2015
- TAX-MEGA 211K Family Nurse
- RX-LIGHT 882
- BOOK-MID 18,789 in Texas
- PHOTO-ENUM Molly Meek · 2015
Katrina Mae Zalavarria, FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
882 ≥ 73rd percentile 73% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Katrina Mae Zalavarria, FNP-C?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
882 28% vs specialty avg
Specialty distribution in Texas
How Family Nurse Practitioner compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1376924530 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | FNP-C |
| Gender | Female |
| NPI Issued | 06/14/2015 |
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Katrina Mae Zalavarria, FNP-C. To verify Katrina Mae Zalavarria, FNP-C's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Katrina Mae Zalavarria, FNP-C - brand share 8.0%
Family Nurse Practitioner average
8% brand-name claims vs 91% generic, on 882 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
882
Total Claims
$52K
Total Drug Cost
258
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,858
- Total Day Supply
- 52,117
- Brand vs Generic
- 8% brand / 91% generic
- Brand Drug Cost
- $35K
- Generic Drug Cost
- $17K
- Antibiotic Claims
- 75
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.37
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 25, 65-74: 128, 75-84: 82, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Katrina Mae Zalavarria, FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
66 claims
- Amlodipine Besylate
Amlodipine Besylate
54 claims
- Fluticasone Propio…
Fluticasone Propionate
31 claims
- Losartan Potassium 25
Losartan Potassium
25 claims
- Metformin Hcl 22
Metformin Hcl
22 claims
- Metoprolol Succinate 22
Metoprolol Succinate
22 claims
- Methylprednisolone 21
Methylprednisolone
21 claims
- Tizanidine Hcl 20
Tizanidine Hcl
20 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 66 |
| Amlodipine Besylate | 54 |
| Fluticasone Propionate | 31 |
| Losartan Potassium | 25 |
| Metformin Hcl | 22 |
| Metoprolol Succinate | 22 |
| Methylprednisolone | 21 |
| Tizanidine Hcl | 20 |
| Alendronate Sodium | 19 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Katrina Mae Zalavarria, FNP-C fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Katrina Mae Zalavarria, FNP-C's 882 claims are below the specialty average of 1,222.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Zalavarria, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Zalavarria.
One of 18,789 Family Nurse Practitioner providers enrolled in Texas, 5 are shown here.
Dr. Ashley Aaron
FNP
Waco, TX
Dr. Christina Aaron
FNP
Texarkana, TX
Dr. Lori Aaron
FNP-C
Frisco, TX
Dr. Lauren Aase
FNP
Sheppard Afb, TX
Olivia Ababio
Cypress, TX
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Katrina Mae Zalavarria, FNP-C's specialty? ▼
Katrina Mae Zalavarria, FNP-C specializes in Family Nurse Practitioner and practices in Houston, Texas. Credentials: FNP-C.
How much does Katrina Mae Zalavarria, FNP-C prescribe under Medicare Part D? ▼
In 2023, Katrina Mae Zalavarria, FNP-C wrote 882 Medicare Part D claims totaling $52K in drug costs for 258 beneficiaries.
Where is Katrina Mae Zalavarria, FNP-C located? ▼
Katrina Mae Zalavarria, FNP-C is located at 2727 W HOLCOMBE BLVD, Houston, TX, 77025. Phone: (713) 442-0000.
What is Katrina Mae Zalavarria, FNP-C's NPI number? ▼
Katrina Mae Zalavarria, FNP-C's National Provider Identifier (NPI) is 1376924530, issued on 06/14/2015.
Does Katrina Mae Zalavarria, FNP-C prescribe more brand-name or generic drugs? ▼
Katrina Mae Zalavarria, FNP-C's prescribing is 8% brand-name and 91% generic drugs by claim count, with $35K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Katrina Mae Zalavarria, FNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Katrina Mae Zalavarria, FNP-C's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katrina Mae Zalavarria, FNP-C accept Medicare? ▼
Katrina Mae Zalavarria, FNP-C appears in CMS Medicare data with 882 Part D claims and 258 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katrina Mae Zalavarria, FNP-C's credentials? ▼
Katrina Mae Zalavarria, FNP-C's NPI is 1376924530 with credentials FNP-C. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.