2026 NPPES data Geriatric Psychiatry Physician NPI 1942414552 MD
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Jeffrey Overdyke, MD

Geriatric Psychiatry Physician in Shreveport, Louisiana. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 785 in Geriatric Psychiatry 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
25
Medicare Part D claims · Geriatric Psychiatry Physician avg: 2K
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Jeffrey Overdyke, MD filed 25 Medicare Part D claims in 2023 as a Geriatric Psychiatry Physician in Shreveport, Louisiana.

25
Part D claims, 2023

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.

Jeffrey Overdyke, MD's Medicare Part D volume vs every U.S. prescriber

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

25 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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-eligible specialty (heuristic — not verified)

Jeffrey Overdyke, MD 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 Jeffrey Overdyke, MD?

Quality data not reported

NPI registry status

Active

Issued 05/10/2007

NPI 1942414552

Primary specialty

Geriatric Psychiatry Physician

Niche

785 US NPIs in this specialty

Medicare Part D claims

25 98% vs specialty avg

2023 prescription claims

Specialty avg: 1,586

Specialty distribution in Louisiana

How Geriatric Psychiatry Physician compares to other specialties among Louisiana providers

Louisiana providers

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

Case Manager/Care Coordinator — 9.6%Case Manager/Care Coordinator9.6%Mental Health Counselor — 7.3%Mental Health Counselor7.3%Behavior Technician — 5.3%Behavior Technician5.3%Pharmacist — 5.2%Pharmacist5.2%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Family Nurse Practitioner — 4.6%Family Nurse Practitioner4.6%Geriatric Psychiatry Physician — 0%Geriatric Psychiatry Physician0%
Largest specialties in Louisiana (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Geriatric Psychiatry Physician (ABMS / AOA reference)

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

Est. board-certified rate (Geriatric Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Geriatric Psychiatry 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).

Jeffrey Overdyke, MD appears in the CMS NPPES registry as a Geriatric Psychiatry Physician provider holding MD credentials at 2508 BERT KOUNS LOOP, Shreveport, LA, 71118, with a listed phone of (318) 212-5850. NPI 1942414552 was issued on 05/10/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Overdyke 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 25 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $304 in drug spend. 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.

Geriatric Psychiatry Physician is a narrow specialty nationwide, with 785 enrolled providers across 46 states and an average of 1,586 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

2508 BERT KOUNS LOOP
Shreveport, LA 71118

Provider Details

NPI 1942414552
Specialty Geriatric Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 05/10/2007

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

25
Total Claims
$304
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
25
Total Day Supply
350
Brand Drug Cost
$0
Generic Drug Cost
$304

Patient Demographics

Average Patient Age
87.0 years
Avg HCC Risk Score
2.51

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Gabapentin
14
Olanzapine
11

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

Geriatric Psychiatry Physician Overview

How Jeffrey Overdyke, MD fits within the Geriatric Psychiatry Physician landscape nationally.

785
Geriatric Psychiatry Physician Providers in US
46
States with Geriatric Psychiatry Physician
1,586
Avg Claims per Provider

Jeffrey Overdyke, MD's 25 claims are below the specialty average of 1,586.

Nearby Geriatric Psychiatry Physician Providers in Louisiana

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

Compare Geriatric Psychiatry 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 Louisiana medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Geriatric Psychiatry 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 Jeffrey Overdyke, MD's specialty?
Jeffrey Overdyke, MD specializes in Geriatric Psychiatry Physician and practices in Shreveport, Louisiana. Credentials: MD.
How much does Jeffrey Overdyke, MD prescribe under Medicare Part D?
In 2023, Jeffrey Overdyke, MD wrote 25 Medicare Part D claims totaling $304 in drug costs for N/A beneficiaries.
Where is Jeffrey Overdyke, MD located?
Jeffrey Overdyke, MD is located at 2508 BERT KOUNS LOOP, Shreveport, LA, 71118. Phone: (318) 212-5850.
What is Jeffrey Overdyke, MD's NPI number?
Jeffrey Overdyke, MD's National Provider Identifier (NPI) is 1942414552, issued on 05/10/2007.
How many Geriatric Psychiatry Physician providers are there in the US?
There are 785 Geriatric Psychiatry Physician providers across 46 states in the US. The average Geriatric Psychiatry Physician provider writes 1,586 Medicare Part D claims per year.
What drugs does Jeffrey Overdyke, MD prescribe most often?
Based on 2023 Medicare Part D data, Jeffrey Overdyke, MD's most frequently prescribed drugs include Gabapentin, Olanzapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jeffrey Overdyke, MD accept Medicare?
Jeffrey Overdyke, MD appears in CMS Medicare data with 25 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jeffrey Overdyke, MD's credentials?
Jeffrey Overdyke, MD's NPI is 1942414552 with credentials MD. 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.