2026 NPPES data Family Nurse Practitioner NPI 1942911540 APRN FNP-C
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Iris Zeller, APRN FNP-C

Family Nurse Practitioner in San Antonio, 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 209,817 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
713
Medicare Part D claims · 162 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Iris Zeller, APRN FNP-C filed 713 Medicare Part D claims in 2023 as a Family Nurse Practitioner in San Antonio, Texas, prescribing 88% generic.

713
Part D claims, 2023
88%
generic prescribing

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.

Iris Zeller, APRN FNP-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

713 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Iris Zeller, APRN FNP-C?

Quality data not reported

NPI registry status

Active

Issued 12/06/2022

NPI 1942911540

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

713 42% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Texas

How Family Nurse Practitioner compares to other specialties among Texas providers

Texas providers

Largest specialties in Texas (% of in-state providers)

Behavior Technician - 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program - 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Professional Counselor - 4.4%Professional Counselor4.4%Pharmacist - 4.4%Pharmacist4.4%Speech-Language Pathologist - 3.9%Speech-Language Pathologist3.9%
Largest specialties in Texas (% of in-state 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:

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).

Iris Zeller, APRN FNP-C appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding APRN FNP-C credentials at 8300 FLOYD CURL DR FL 1, San Antonio, TX, 78229, with a listed phone of (210) 450-9100. NPI 1942911540 was issued on 12/06/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Zeller most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 713 prescription claims written by this provider, covering 162 Medicare beneficiaries and totaling roughly $65K in drug spend, split 11% brand-name and 88% generic by claim count. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

8300 FLOYD CURL DR FL 1
San Antonio, TX 78229

Provider Details

NPI 1942911540
Specialty Family Nurse Practitioner
Credentials APRN FNP-C
Gender Female
NPI Issued 12/06/2022

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 Iris Zeller, APRN FNP-C. To verify Iris Zeller, APRN 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 · Typical

Iris Zeller, APRN FNP-C - brand share 11.0%
Family Nurse Practitioner average

11% brand-name claims vs 88% generic, on 713 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.

713
Total Claims
$65K
Total Drug Cost
162
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,426
Total Day Supply
40,110
Brand vs Generic
11% brand / 88% generic
Brand Drug Cost
$54K
Generic Drug Cost
$11K
Antibiotic Claims
53

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.18
Gender Split
66% female / 34% male
Age Distribution
<65: 18, 65-74: 82, 75-84: 47, 85+: 15

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Iris Zeller, APRN FNP-C prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
50
Amlodipine Besylate
38
Lisinopril
36
Metformin Hcl
25
Losartan Potassium
24
Rosuvastatin Calcium
24
Gabapentin
23
Prednisone
19
Albuterol Sulfate Hfa
Albuterol Sulfate
17
Levothyroxine Sodium
17

* 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 Iris Zeller, APRN FNP-C fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Iris Zeller, APRN FNP-C's 713 claims are below the specialty average of 1,222.

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 Zeller.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Texas medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Iris Zeller, APRN FNP-C's specialty?
Iris Zeller, APRN FNP-C specializes in Family Nurse Practitioner and practices in San Antonio, Texas. Credentials: APRN FNP-C.
How much does Iris Zeller, APRN FNP-C prescribe under Medicare Part D?
In 2023, Iris Zeller, APRN FNP-C wrote 713 Medicare Part D claims totaling $65K in drug costs for 162 beneficiaries.
Where is Iris Zeller, APRN FNP-C located?
Iris Zeller, APRN FNP-C is located at 8300 FLOYD CURL DR FL 1, San Antonio, TX, 78229. Phone: (210) 450-9100.
What is Iris Zeller, APRN FNP-C's NPI number?
Iris Zeller, APRN FNP-C's National Provider Identifier (NPI) is 1942911540, issued on 12/06/2022.
Does Iris Zeller, APRN FNP-C prescribe more brand-name or generic drugs?
Iris Zeller, APRN FNP-C's prescribing is 11% brand-name and 88% generic drugs by claim count, with $54K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 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 Iris Zeller, APRN FNP-C prescribe most often?
Based on 2023 Medicare Part D data, Iris Zeller, APRN FNP-C's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Iris Zeller, APRN FNP-C accept Medicare?
Iris Zeller, APRN FNP-C appears in CMS Medicare data with 713 Part D claims and 162 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Iris Zeller, APRN FNP-C's credentials?
Iris Zeller, APRN FNP-C's NPI is 1942911540 with credentials APRN 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

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

Compiled from official public sources by the PlainDoctor editorial team.