NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1437680964
Verify on CMS → Mary Joenborg
Family Medicine Physician in Mount Vernon, Kentucky.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 147,760 in Family Medicine Physician, 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
13K
Medicare Part D claims · 654 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$263.5
13 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Mary Joenborg filed 13,207 Medicare Part D claims in 2023 as a Family Medicine Physician in Mount Vernon, Kentucky, prescribing 86% generic.
- 13K
- Part D claims, 2023
- 86%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥98th
- 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 Joenborg
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 1437680964), first enumerated 03/26/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 13,207 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$263.5 in reported industry payments (13 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 1437680964 · Family Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-HEAVY · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1437680964
- ENUM-RECENT 2017
- TAX-MEGA 148K Family Medicine
- RX-HEAVY 13K claims
- BOOK-LIGHT 1,867 in Kentucky
- PHOTO-ENUM Jacob Birnbaum · 2017
Mary Joenborg's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
13,207 ≥ 98th percentile 98% 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
✓
Board certification likely (heuristic, not verified)
Mary Joenborg practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mary Joenborg?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
13,207 286% vs specialty avg
Specialty distribution in Kentucky
How Family Medicine Physician compares to other specialties among Kentucky 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 Medicine Physician. 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 | 1437680964 |
|---|---|
| Specialty | Family Medicine Physician |
| Gender | Female |
| NPI Issued | 03/26/2017 |
Hospital and facility affiliations
Facilities where Mary Joenborg bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Rockcastle County Hospital, Inc.
★★☆☆☆ 2/5
Mt Vernon, KY
Acute Care Hospitals
CMS CCN: 180115
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Joenborg. Source: openpaymentsdata.cms.gov.
Total received
$264
Largest payer
Otsuka America Pharmaceutical, 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.
Brand vs generic prescribing mix · Typical
Mary Joenborg - brand share 13.0%
Family Medicine Physician average
13% brand-name claims vs 86% generic, on 13,207 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.
13,207
Total Claims
$1.6M
Total Drug Cost
654
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 23,544
- Total Day Supply
- 691,593
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $1.4M
- Generic Drug Cost
- $244K
- Opioid Claims
- 835 (6.3% rate)
- Antibiotic Claims
- 211
Patient Demographics
- Average Patient Age
- 70.7 years
- Avg HCC Risk Score
- 1.28
- Gender Split
- 69% female / 31% male
- Age Distribution
- <65: 142, 65-74: 277, 75-84: 182, 85+: 53
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mary Joenborg prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
509 claims
- Atorvastatin Calcium
Atorvastatin Calcium
476 claims
- Lisinopril
Lisinopril
435 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
424 claims
- Montelukast Sodium
Montelukast Sodium
372 claims
- Amlodipine Besylate
Amlodipine Besylate
361 claims
- Levothyroxine Sodium
Levothyroxine Sodium
361 claims
- Omeprazole
Omeprazole
273 claims
| Drug | Claims |
|---|---|
| Gabapentin | 509 |
| Atorvastatin Calcium | 476 |
| Lisinopril | 435 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 424 |
| Montelukast Sodium | 372 |
| Amlodipine Besylate | 361 |
| Levothyroxine Sodium | 361 |
| Omeprazole | 273 |
| Metoprolol Succinate | 238 |
| Pantoprazole Sodium | 220 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Mary Joenborg fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Mary Joenborg's 13,207 claims are above the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Joenborg, both outside Kentucky so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Kentucky
Other clinicians with the same primary specialty enrolled in Kentucky, drawn from the same CMS NPPES roster as Joenborg.
One of 1,867 Family Medicine Physician providers enrolled in Kentucky, 5 are shown here.
Dr. Nison Abayev
MD
Louisville, KY
Dr. Sarah Abbeyquaye
D.O.
Richmond, KY
Dr. Lesley Abbott
D.O.
Flatwoods, KY
Dr. Faten Abdullah
M.D.
Louisville, KY
Dr. Matthew Abel
MD
Nicholasville, KY
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mary Joenborg's specialty? ▼
Mary Joenborg specializes in Family Medicine Physician and practices in Mount Vernon, Kentucky.
How much does Mary Joenborg prescribe under Medicare Part D? ▼
In 2023, Mary Joenborg wrote 13,207 Medicare Part D claims totaling $1.6M in drug costs for 654 beneficiaries.
Where is Mary Joenborg located? ▼
Mary Joenborg is located at 140 NEWCOMB AVE, Mount Vernon, KY, 40456. Phone: (606) 256-2195.
What is Mary Joenborg's NPI number? ▼
Mary Joenborg's National Provider Identifier (NPI) is 1437680964, issued on 03/26/2017.
Does Mary Joenborg prescribe more brand-name or generic drugs? ▼
Mary Joenborg's prescribing is 13% brand-name and 86% generic drugs by claim count, with $1.4M in brand drug costs.
Does Mary Joenborg prescribe opioids? ▼
Yes, Mary Joenborg had 835 opioid claims in 2023 with an opioid prescribing rate of 6.3%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Mary Joenborg prescribe most often? ▼
Based on 2023 Medicare Part D data, Mary Joenborg's most frequently prescribed drugs include Gabapentin, Atorvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Joenborg accept Medicare? ▼
Mary Joenborg appears in CMS Medicare data with 13,207 Part D claims and 654 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Joenborg's credentials? ▼
Mary Joenborg's NPI is 1437680964. 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.