2026 NPPES data Psychiatry Physician NPI 1710941737 M.D.
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CALVIN WALKER, M.D.

Psychiatry Physician in MONROE, Louisiana. 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
2K
Medicare Part D claims · 111 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$125.14
6 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CALVIN WALKER, M.D. filed 1,723 Medicare Part D claims in 2023 as a Psychiatry Physician in MONROE, Louisiana, prescribing 87% generic.

2K
Part D claims, 2023
87%
generic prescribing
$125.14
industry payments (Sunshine Act)

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.

CALVIN WALKER, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,723 Top 17% higher than 83% 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%). This entry sits in this band. 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)

CALVIN WALKER, 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 CALVIN WALKER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/14/2006

NPI 1710941737

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

1,723 66% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Louisiana

How Psychiatry Physician compares to other specialties among Louisiana providers

Louisiana providers

Psychiatry Physician share within Louisiana

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

Specialty board-certification context

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

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

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

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

CALVIN WALKER, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 3418 MEDICAL PARK DR, MONROE, LA, 71203, with a listed phone of (318) 323-0700. NPI 1710941737 was issued on 04/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WALKER 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 1,723 prescription claims written by this provider, covering 111 Medicare beneficiaries and totaling roughly $477K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 1.2%. 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

3418 MEDICAL PARK DR
MONROE, LA 71203

Provider Details

NPI 1710941737
Specialty Psychiatry Physician
Credentials M.D.
Gender Male
NPI Issued 04/14/2006

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 CALVIN WALKER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$125

Largest payer

ITI, Inc. (d/b/a Intra-Cellular Therapies, 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

CALVIN WALKER, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 1,723 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.

1,723
Total Claims
$477K
Total Drug Cost
111
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,706
Total Day Supply
80,135
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$402K
Generic Drug Cost
$76K
Opioid Claims
20 (1.2% rate)

Patient Demographics

Average Patient Age
61.2 years
Avg HCC Risk Score
1.15
Gender Split
62% female / 38% male
Age Distribution
<65: 58, 65-74: 33, 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 CALVIN WALKER, M.D. 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
Quetiapine Fumarate
112
Oxcarbazepine
79
Trazodone Hcl
54
Gabapentin
51
Clonazepam
49
Lurasidone Hcl
49
Duloxetine Hcl
46
Olanzapine
46
Ropinirole Hcl
45
Vraylar
Cariprazine Hcl
45

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

Psychiatry Physician Overview

How CALVIN WALKER, M.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

CALVIN WALKER, M.D.'s 1,723 claims are above the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Louisiana

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

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CALVIN WALKER, M.D.'s specialty?
CALVIN WALKER, M.D. specializes in Psychiatry Physician and practices in MONROE, Louisiana. Credentials: M.D..
How much does CALVIN WALKER, M.D. prescribe under Medicare Part D?
In 2023, CALVIN WALKER, M.D. wrote 1,723 Medicare Part D claims totaling $477K in drug costs for 111 beneficiaries.
Where is CALVIN WALKER, M.D. located?
CALVIN WALKER, M.D. is located at 3418 MEDICAL PARK DR, MONROE, LA, 71203. Phone: (318) 323-0700.
What is CALVIN WALKER, M.D.'s NPI number?
CALVIN WALKER, M.D.'s National Provider Identifier (NPI) is 1710941737, issued on 04/14/2006.
Does CALVIN WALKER, M.D. prescribe more brand-name or generic drugs?
CALVIN WALKER, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $402K in brand drug costs.
Does CALVIN WALKER, M.D. prescribe opioids?
Yes, CALVIN WALKER, M.D. had 20 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does CALVIN WALKER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CALVIN WALKER, M.D.'s most frequently prescribed drugs include Quetiapine Fumarate, Oxcarbazepine, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CALVIN WALKER, M.D. accept Medicare?
CALVIN WALKER, M.D. appears in CMS Medicare data with 1,723 Part D claims and 111 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CALVIN WALKER, M.D.'s credentials?
CALVIN WALKER, M.D.'s NPI is 1710941737 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

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