NPI registry status
Active
2026 NPPES data Anesthesiology Physician NPI 1598841876
Verify on CMS → Joseph Essmyer
Anesthesiology Physician in Cape Girardeau, 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 56,432 in Anesthesiology 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
21K
Medicare Part D claims · 1K beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
>99%
generic claims · <1% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Joseph Essmyer filed 21,490 Medicare Part D claims in 2023 as a Anesthesiology Physician in Cape Girardeau, Missouri, prescribing >99% generic.
- 21K
- Part D claims, 2023
- >99%
- 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.
Joseph Essmyer's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
21,490 Top 2% higher than 98% of 1,370,886 prescribers
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)
Joseph Essmyer practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Joseph Essmyer?
Quality data not reportedPrimary specialty
Anesthesiology Physician
Medicare Part D claims
21,490 25× vs specialty avg
Specialty distribution in Missouri
How Anesthesiology Physician 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 Anesthesiology 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).
Joseph Essmyer appears in the CMS NPPES registry as an Anesthesiology Physician provider at 300 S MOUNT AUBURN RD, Cape Girardeau, MO, 63703, with a listed phone of (573) 332-7881. NPI 1598841876 was issued on 10/28/2006.
Medicare Part D records for calendar year 2023 show 21,490 prescription claims written by this provider, covering 1,385 Medicare beneficiaries and totaling roughly $797K in drug spend, split <1% brand-name and >99% generic by claim count, with an opioid prescribing rate of 65.7%.
Anesthesiology Physician is a high-volume specialty nationwide, with 56,432 enrolled providers across 56 states and an average of 860 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
Provider Details
| NPI | 1598841876 |
|---|---|
| Specialty | Anesthesiology Physician |
| Gender | Female |
| NPI Issued | 10/28/2006 |
Hospital and facility affiliations
Facilities where Joseph Essmyer 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.
Mcpherson Medical And Diagnostic LLC
Hayti, MO
Midwest Neurosurgeons LLC
Cape Girardeau, MO
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Joseph Essmyer - brand share 1.0%
Anesthesiology Physician average
<1% brand-name claims vs >99% generic, on 21,490 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.
21,490
Total Claims
$797K
Total Drug Cost
1,385
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 21,561
- Total Day Supply
- 594,721
- Brand vs Generic
- <1% brand / >99% generic
- Brand Drug Cost
- $61K
- Generic Drug Cost
- $737K
- Opioid Claims
- 14,115 (65.7% rate)
Patient Demographics
- Average Patient Age
- 62.2 years
- Avg HCC Risk Score
- 1.90
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 773, 65-74: 467, 75-84: 127, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Joseph Essmyer prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
10,127 claims
- Oxycodone-Acetamin… 2,371
Oxycodone-Acetaminophen
2,371 claims
- Pregabalin 1,887
Pregabalin
1,887 claims
- Gabapentin 1,206
Gabapentin
1,206 claims
- Diclofenac Sodium 1,079
Diclofenac Sodium
1,079 claims
- Cyclobenzaprine Hcl 862
Cyclobenzaprine Hcl
862 claims
- Oxycodone Hcl 786
Oxycodone Hcl
786 claims
- Tizanidine Hcl 642
Tizanidine Hcl
642 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 10,127 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 2,371 |
| Pregabalin | 1,887 |
| Gabapentin | 1,206 |
| Diclofenac Sodium | 1,079 |
| Cyclobenzaprine Hcl | 862 |
| Oxycodone Hcl | 786 |
| Tizanidine Hcl | 642 |
| Tramadol Hcl | 317 |
| Meloxicam | 287 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Anesthesiology Physician Overview
How Joseph Essmyer fits within the Anesthesiology Physician landscape nationally.
56,432
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider
Joseph Essmyer's 21,490 claims are above the specialty average of 860.
Nearby Anesthesiology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Essmyer.
Dr. Nabil Abboud
MD
Saint Louis, MO
Dr. Frederick Abele
M.D.
Saint Louis, MO
Dr. Hawa Abubakar
MD
Saint Louis, MO
Dr. Joel Ackerman
M.D.
Lees Summit, MO
Dr. Riley Adams
M.D.
Cape Girardeau, MO
Compare Anesthesiology Physician 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 Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Anesthesiology Physician 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Joseph Essmyer's specialty? ▼
Joseph Essmyer specializes in Anesthesiology Physician and practices in Cape Girardeau, Missouri.
How much does Joseph Essmyer prescribe under Medicare Part D? ▼
In 2023, Joseph Essmyer wrote 21,490 Medicare Part D claims totaling $797K in drug costs for 1,385 beneficiaries.
Where is Joseph Essmyer located? ▼
Joseph Essmyer is located at 300 S MOUNT AUBURN RD, Cape Girardeau, MO, 63703. Phone: (573) 332-7881.
What is Joseph Essmyer's NPI number? ▼
Joseph Essmyer's National Provider Identifier (NPI) is 1598841876, issued on 10/28/2006.
Does Joseph Essmyer prescribe more brand-name or generic drugs? ▼
Joseph Essmyer's prescribing is <1% brand-name and >99% generic drugs by claim count, with $61K in brand drug costs.
Does Joseph Essmyer prescribe opioids? ▼
Yes, Joseph Essmyer had 14,115 opioid claims in 2023 with an opioid prescribing rate of 65.7%.
How many Anesthesiology Physician providers are there in the US? ▼
There are 56,432 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Joseph Essmyer prescribe most often? ▼
Based on 2023 Medicare Part D data, Joseph Essmyer's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen, Pregabalin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Joseph Essmyer accept Medicare? ▼
Joseph Essmyer appears in CMS Medicare data with 21,490 Part D claims and 1,385 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Joseph Essmyer's credentials? ▼
Joseph Essmyer's NPI is 1598841876. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.