NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1265476543 ANP
Verify on CMS → Mary Von Feldt, ANP
Adult Health Nurse Practitioner in Saint Louis, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,519 in Adult Health 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
21
Medicare Part D claims · Adult Health Nurse Practitioner avg: 1K
Industry payments
$125
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mary Von Feldt, ANP filed 21 Medicare Part D claims in 2023 as an Adult Health Nurse Practitioner in Saint Louis, Missouri.
- 21
- Part D claims, 2023
- $125
- industry payments (Sunshine Act)
- ≥0th
- 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 Mary Von Feldt, ANP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1265476543), first enumerated 06/16/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 21 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$125 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1265476543 · Adult Health Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-MID · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1265476543
- ENUM-LEGACY 2006
- TAX-MID 30K Adult Health
- RX-TRACE 21
- BOOK-LIGHT 733 in Missouri
- PHOTO-ENUM Brenda Ware · 2006
Mary Von Feldt, ANP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
21 ≥ 0th percentile 0% 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 Mary Von Feldt, ANP?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
21 98% vs specialty avg
Specialty distribution in Missouri
How Adult Health Nurse Practitioner compares to other specialties among Missouri 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 Adult Health 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 | 1265476543 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | ANP |
| Gender | Female |
| NPI Issued | 06/16/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Mary Von Feldt, ANP. Source: openpaymentsdata.cms.gov.
Total received
$125
Largest payer
Eisai Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
21
Total Claims
$1K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 21
- Total Day Supply
- 596
- Brand Drug Cost
- $0
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 74.8 years
- Avg HCC Risk Score
- 3.09
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Spironolactone | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Mary Von Feldt, ANP fits within the Adult Health Nurse Practitioner landscape nationally.
29,519
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider
Mary Von Feldt, ANP's 21 claims are below the specialty average of 1,201.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Von Feldt, both outside Missouri so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Von Feldt.
One of 733 Adult Health Nurse Practitioner providers enrolled in Missouri, 5 are shown here.
Dr. Amber Abeln
ANP
Jefferson City, MO
Dr. Elizabeth Abernathy
N.P.
Saint Louis, MO
Dr. Maureen Abongo
DNP
Saint Louis, MO
Dr. Kimberly Adams
ANP
Columbia, MO
Dr. Joni Ahern
NP
Columbia, MO
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mary Von Feldt, ANP's specialty? ▼
Mary Von Feldt, ANP specializes in Adult Health Nurse Practitioner and practices in Saint Louis, Missouri. Credentials: ANP.
How much does Mary Von Feldt, ANP prescribe under Medicare Part D? ▼
In 2023, Mary Von Feldt, ANP wrote 21 Medicare Part D claims totaling $1K in drug costs for N/A beneficiaries.
Where is Mary Von Feldt, ANP located? ▼
Mary Von Feldt, ANP is located at 2325 DOUGHERTY FERRY RD, Saint Louis, MO, 63122. Phone: (314) 966-9888.
What is Mary Von Feldt, ANP's NPI number? ▼
Mary Von Feldt, ANP's National Provider Identifier (NPI) is 1265476543, issued on 06/16/2006.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,519 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does Mary Von Feldt, ANP prescribe most often? ▼
Based on 2023 Medicare Part D data, Mary Von Feldt, ANP's most frequently prescribed drugs include Spironolactone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Von Feldt, ANP accept Medicare? ▼
Mary Von Feldt, ANP appears in CMS Medicare data with 21 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Von Feldt, ANP's credentials? ▼
Mary Von Feldt, ANP's NPI is 1265476543 with credentials ANP. 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.