2026 NPPES data Obstetrics & Gynecology Physician NPI 1629654744 DO
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Zakary Reneau, DO

Obstetrics & Gynecology Physician in Saint Joseph, 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 44,313 in Obstetrics & 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
812
Medicare Part D claims · 134 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$513.27
9 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Zakary Reneau, DO filed 812 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in Saint Joseph, Missouri, prescribing 96% generic.

812
Part D claims, 2023
96%
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.

Zakary Reneau, DO's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

812 Top 27% higher than 73% 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%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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)

Zakary Reneau, DO 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 Zakary Reneau, DO?

Quality data not reported

NPI registry status

Active

Issued 03/19/2021

NPI 1629654744

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

812 354% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Missouri

How Obstetrics & Gynecology Physician compares to other specialties among Missouri providers

Missouri providers

Largest specialties in Missouri (% of in-state providers)

Pharmacist — 4.8%Pharmacist4.8%Professional Counselor — 4.8%Professional Counselor4.8%Speech-Language Pathologist — 4.5%Speech-Language Pathologist4.5%Clinical Social Worker — 4.5%Clinical Social Worker4.5%Family Nurse Practitioner — 4.3%Family Nurse Practitioner4.3%Physical Therapist — 4%Physical Therapist4%Obstetrics & Gynecology Physician — 0.8%Obstetrics & Gynecology Physician0.8%
Largest specialties in Missouri (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

Zakary Reneau, DO appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding DO credentials at 901 HEARTLAND RD STE 2800, Saint Joseph, MO, 64506, with a listed phone of (816) 271-1200. NPI 1629654744 was issued on 03/19/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Reneau 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 812 prescription claims written by this provider, covering 134 Medicare beneficiaries and totaling roughly $47K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 75.2%. 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

901 HEARTLAND RD STE 2800
Saint Joseph, MO 64506

Provider Details

NPI 1629654744
Specialty Obstetrics & Gynecology Physician
Credentials DO
Gender Male
NPI Issued 03/19/2021

Hospital and facility affiliations

Facilities where Zakary Reneau, DO 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.

Heartland Regional Medical Center
Saint Joseph, 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).

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 Zakary Reneau, DO. Source: openpaymentsdata.cms.gov.

Total received

$513

Largest payer

Medical Device Business Services, 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 · Generic-heavy

Zakary Reneau, DO — brand share 4.0%
Obstetrics & Gynecology Physician average

4% brand-name claims vs 96% generic, on 812 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.

812
Total Claims
$47K
Total Drug Cost
134
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
815
Total Day Supply
20,352
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$13K
Generic Drug Cost
$34K
Opioid Claims
611 (75.2% rate)

Patient Demographics

Average Patient Age
62.5 years
Avg HCC Risk Score
1.62
Gender Split
66% female / 34% male
Age Distribution
<65: 73, 65-74: 44, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Zakary Reneau, DO 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
262
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
165
Oxycodone Hcl
64
Acetaminophen-Codeine
Acetaminophen With Codeine
43
Gabapentin
34
Tramadol Hcl
28
Buprenorphine
27
Naloxone Hcl
22
Cyclobenzaprine Hcl
19
Buprenorphine Hcl
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Obstetrics & Gynecology Physician Overview

How Zakary Reneau, DO fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

Zakary Reneau, DO's 812 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Reneau.

Compare Obstetrics & 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 Obstetrics & 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.

Frequently Asked Questions

What is Zakary Reneau, DO's specialty?
Zakary Reneau, DO specializes in Obstetrics & Gynecology Physician and practices in Saint Joseph, Missouri. Credentials: DO.
How much does Zakary Reneau, DO prescribe under Medicare Part D?
In 2023, Zakary Reneau, DO wrote 812 Medicare Part D claims totaling $47K in drug costs for 134 beneficiaries.
Where is Zakary Reneau, DO located?
Zakary Reneau, DO is located at 901 HEARTLAND RD STE 2800, Saint Joseph, MO, 64506. Phone: (816) 271-1200.
What is Zakary Reneau, DO's NPI number?
Zakary Reneau, DO's National Provider Identifier (NPI) is 1629654744, issued on 03/19/2021.
Does Zakary Reneau, DO prescribe more brand-name or generic drugs?
Zakary Reneau, DO's prescribing is 4% brand-name and 96% generic drugs by claim count, with $13K in brand drug costs.
Does Zakary Reneau, DO prescribe opioids?
Yes, Zakary Reneau, DO had 611 opioid claims in 2023 with an opioid prescribing rate of 75.2%.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does Zakary Reneau, DO prescribe most often?
Based on 2023 Medicare Part D data, Zakary Reneau, DO's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Zakary Reneau, DO accept Medicare?
Zakary Reneau, DO appears in CMS Medicare data with 812 Part D claims and 134 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Zakary Reneau, DO's credentials?
Zakary Reneau, DO's NPI is 1629654744 with credentials DO. 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

Compiled from official public sources by the PlainDoctor editorial team.