Derek M Parker, PSY.D.

Psychologist · Winfield, KS

Call (620) 331-1748 Directions

At a glance

33354 D Street, Winfield, KS 67301

NPPES record updated Jul 10, 2026. Public records can lag behind changes at a practice.

Before you call: a quick checklist

Are you accepting new patients?
Do you accept my specific insurance plan?
Do you provide the service I need at this address?
Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

33354 D Street
Winfield, KS 67301

Additional reported practice locations

1901 E 1St St
Newton, KS 671145010
Phone: 3162846400
Fax: 3162846490

REPORTED BACKGROUND

Education & affiliations

Medical / professional school: Not reported in this file
Graduation year: 2015
CMS specialties: Clinical Psychologist

Practice groups

Ralph Bharati, Md, Pa

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Service-mix comparison is unavailable for this NPI in the imported Medicare service file.

PAYMENT TRANSPARENCY

Industry-reported general payments

No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record

NPI1568690923

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Registry details

Primary taxonomy: Psychologist
Taxonomy code: 103T00000X
Enumeration date: Jun 24, 2009
Record updated: Jul 10, 2026

More registry details

Provider type: Individual · Type 1
Reported credentials: PSY.D.