2026 NPPES data Family Medicine Physician NPI 1437680964
Verify on CMS →

MARY JOENBORG

Family Medicine Physician in MOUNT VERNON, Kentucky. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
13K
Medicare Part D claims · 654 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
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)

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 87% generic.

13K
Part D claims, 2023
87%
generic prescribing
Likely
board-certified (heuristic)

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.

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 Top 2% higher than 98% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

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 reported

NPI registry status

Active

Issued 03/26/2017

NPI 1437680964

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

13,207 286% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Kentucky

How Family Medicine Physician compares to other specialties among Kentucky providers

Kentucky providers

Family Medicine Physician share within Kentucky

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Kentucky

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

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).

MARY JOENBORG appears in the CMS NPPES registry as a Family Medicine Physician provider at 140 NEWCOMB AVE, MOUNT VERNON, KY, 40456, with a listed phone of (606) 256-2195. NPI 1437680964 was issued on 03/26/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JOENBORG 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 13,207 prescription claims written by this provider, covering 654 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 6.3%. 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 Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

140 NEWCOMB AVE
MOUNT VERNON, KY 40456

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%
Specialty average (est.)

13% brand-name claims vs 87% 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 / 87% 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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

147,640
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.

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.

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 87% 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 147,640 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

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