2026 NPPES data Psychologist NPI 1306234380 PHD
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HELENE COOK, PHD

Psychologist in GREENVILLE, South Carolina. 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.

What the federal data shows

HELENE COOK, PHD is a Psychologist in GREENVILLE, South Carolina, listed in the federal CMS National Provider Identifier registry.

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.

What does the federal data show about HELENE COOK, PHD?

Quality data not reported

NPI registry status

Active

Issued 12/29/2014

NPI 1306234380

Primary specialty

Psychologist

Mid-sized

47,503 US NPIs in this specialty

Specialty distribution in South Carolina

How Psychologist compares to other specialties among South Carolina providers

South Carolina providers

Psychologist share within South Carolina

1. Psychologist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychologist share within South Carolina

Specialty board-certification context

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

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

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

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

HELENE COOK, PHD is a Psychologist provider practicing in GREENVILLE, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHD. NPI: 1306234380. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

HELENE COOK, PHD appears in the CMS NPPES registry as a Psychologist provider holding PHD credentials at 701 GROVE RD, GREENVILLE, SC, 29605, with a listed phone of (864) 455-8431. NPI 1306234380 was issued on 12/29/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COOK 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Psychologist providers operate outside Part D entirely.

Psychologist is a mid-sized specialty nationwide, with 47,503 enrolled providers across 56 states and an average of 760 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

701 GROVE RD
GREENVILLE, SC 29605

Provider Details

NPI 1306234380
Specialty Psychologist
Credentials PHD
Gender Female
NPI Issued 12/29/2014

Hospital and facility affiliations

Facilities where HELENE COOK, PHD 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.

DOCTOR ON DEMAND PROFESSIONALS P C
COLUMBIA, SC

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Psychologist Overview

How HELENE COOK, PHD fits within the Psychologist landscape nationally.

47,503
Psychologist Providers in US
56
States with Psychologist
760
Avg Claims per Provider

Nearby Psychologist Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as COOK.

Compare Psychologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is HELENE COOK, PHD's specialty?
HELENE COOK, PHD specializes in Psychologist and practices in GREENVILLE, South Carolina. Credentials: PHD.
Where is HELENE COOK, PHD located?
HELENE COOK, PHD is located at 701 GROVE RD, GREENVILLE, SC, 29605. Phone: (864) 455-8431.
What is HELENE COOK, PHD's NPI number?
HELENE COOK, PHD's National Provider Identifier (NPI) is 1306234380, issued on 12/29/2014.
How many Psychologist providers are there in the US?
There are 47,503 Psychologist providers across 56 states in the US. The average Psychologist provider writes 760 Medicare Part D claims per year.
Does HELENE COOK, PHD accept Medicare?
HELENE COOK, PHD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HELENE COOK, PHD's credentials?
HELENE COOK, PHD's NPI is 1306234380 with credentials PHD. 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.
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