NPI registry status
Active
2026 NPPES data Gynecology Physician NPI 1235180142 M.D.
Verify on CMS → Elmer Vandyke, M.D.
Gynecology Physician in Sedalia, 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 3,906 in Gynecology 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
2K
Medicare Part D claims · 276 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
74%
generic claims · 26% 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
Elmer Vandyke, M.D. filed 1,653 Medicare Part D claims in 2023 as a Gynecology Physician in Sedalia, Missouri, prescribing 74% generic.
- 2K
- Part D claims, 2023
- 74%
- 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.
Elmer Vandyke, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,653 Top 18% higher than 82% 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-eligible specialty (heuristic, not verified)
Elmer Vandyke, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Elmer Vandyke, M.D.?
Quality data not reportedPrimary specialty
Gynecology Physician
Medicare Part D claims
1,653 6× vs specialty avg
Specialty distribution in Missouri
How Gynecology 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 Gynecology 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).
Elmer Vandyke, M.D. appears in the CMS NPPES registry as a Gynecology Physician provider holding M.D. credentials at 3131 BRIANNA BLVD, Sedalia, MO, 65301, with a listed phone of (660) 826-1381. NPI 1235180142 was issued on 05/15/2006.
Medicare Part D records for calendar year 2023 show 1,653 prescription claims written by this provider, covering 276 Medicare beneficiaries and totaling roughly $200K in drug spend, split 26% brand-name and 74% generic by claim count, with an opioid prescribing rate of 1.1%.
Gynecology Physician is a narrow specialty nationwide, with 3,906 enrolled providers across 53 states and an average of 295 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 | 1235180142 |
|---|---|
| Specialty | Gynecology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/15/2006 |
Brand vs generic prescribing mix · Above average
Elmer Vandyke, M.D. - brand share 26.0%
Gynecology Physician average
26% brand-name claims vs 74% generic, on 1,653 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.
1,653
Total Claims
$200K
Total Drug Cost
276
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,109
- Total Day Supply
- 87,742
- Brand vs Generic
- 26% brand / 74% generic
- Brand Drug Cost
- $153K
- Generic Drug Cost
- $47K
- Opioid Claims
- 19 (1.1% rate)
- Antibiotic Claims
- 69
Patient Demographics
- Average Patient Age
- 70.1 years
- Avg HCC Risk Score
- 0.96
- Age Distribution
- <65: 54, 65-74: 128, 75-84: 79, 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 Elmer Vandyke, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Estradiol
Estradiol
369 claims
- Estradiol (Twice W… 139
Estradiol (Twice Weekly)
139 claims
- Medroxyprogesteron… 94
Medroxyprogesterone Acetate
94 claims
- Dotti 85
Dotti
85 claims
- Estradiol (Once We… 85
Estradiol (Once Weekly)
85 claims
- Gemtesa 64
Gemtesa
64 claims
- Oxybutynin Chloride 57
Oxybutynin Chloride
57 claims
- Levothyroxine Sodium 55
Levothyroxine Sodium
55 claims
| Drug | Claims |
|---|---|
| Estradiol | 369 |
| Estradiol (Twice Weekly) Estradiol | 139 |
| Medroxyprogesterone Acetate | 94 |
| Dotti Estradiol | 85 |
| Estradiol (Once Weekly) Estradiol | 85 |
| Gemtesa Vibegron | 64 |
| Oxybutynin Chloride | 57 |
| Levothyroxine Sodium | 55 |
| Myrbetriq Mirabegron | 55 |
| Fluconazole | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gynecology Physician Overview
How Elmer Vandyke, M.D. fits within the Gynecology Physician landscape nationally.
3,906
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider
Elmer Vandyke, M.D.'s 1,653 claims are above the specialty average of 295.
Nearby Gynecology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Vandyke.
Dr. Jack Adcock
DO
Joplin, MO
Dr. George Ahlering
MD
Chesterfield, MO
Dr. Lillian Alderman
M.D.
Liberty, MO
Dr. Scott Biest
MD
Saint Louis, MO
Dr. Barbara Bohon
MD
Kansas City, MO
Compare Gynecology 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 Gynecology 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.
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Frequently Asked Questions
What is Elmer Vandyke, M.D.'s specialty? ▼
Elmer Vandyke, M.D. specializes in Gynecology Physician and practices in Sedalia, Missouri. Credentials: M.D..
How much does Elmer Vandyke, M.D. prescribe under Medicare Part D? ▼
In 2023, Elmer Vandyke, M.D. wrote 1,653 Medicare Part D claims totaling $200K in drug costs for 276 beneficiaries.
Where is Elmer Vandyke, M.D. located? ▼
Elmer Vandyke, M.D. is located at 3131 BRIANNA BLVD, Sedalia, MO, 65301. Phone: (660) 826-1381.
What is Elmer Vandyke, M.D.'s NPI number? ▼
Elmer Vandyke, M.D.'s National Provider Identifier (NPI) is 1235180142, issued on 05/15/2006.
Does Elmer Vandyke, M.D. prescribe more brand-name or generic drugs? ▼
Elmer Vandyke, M.D.'s prescribing is 26% brand-name and 74% generic drugs by claim count, with $153K in brand drug costs.
Does Elmer Vandyke, M.D. prescribe opioids? ▼
Yes, Elmer Vandyke, M.D. had 19 opioid claims in 2023 with an opioid prescribing rate of 1.1%.
How many Gynecology Physician providers are there in the US? ▼
There are 3,906 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does Elmer Vandyke, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Elmer Vandyke, M.D.'s most frequently prescribed drugs include Estradiol, Estradiol (Twice Weekly), Medroxyprogesterone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Elmer Vandyke, M.D. accept Medicare? ▼
Elmer Vandyke, M.D. appears in CMS Medicare data with 1,653 Part D claims and 276 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Elmer Vandyke, M.D.'s credentials? ▼
Elmer Vandyke, M.D.'s NPI is 1235180142 with credentials M.D.. 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.