2026 NPPES data Clinical Neuropsychologist NPI 1609101716 PH.D.
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KIRK GRIFFITH, PH.D.

Clinical Neuropsychologist in COLUMBIA, Maryland. 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 reveals: KIRK GRIFFITH, PH.D. is a Clinical Neuropsychologist ([object Object]) practicing in COLUMBIA, Maryland .

What stands out: KIRK GRIFFITH, PH.D. specializes in Clinical Neuropsychologist and practices in COLUMBIA, Maryland, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

KIRK GRIFFITH, PH.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 10/07/2009

NPI 1609101716

Primary specialty

Clinical Neuropsychologist

Mid-sized

5,728 US NPIs in this specialty

Specialty distribution in Maryland

How Clinical Neuropsychologist compares to other specialties among Maryland providers

Maryland providers

Clinical Neuropsychologist share within Maryland

1. Clinical Neuropsychologist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical Neuropsychologist share within Maryland

Specialty board-certification context

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

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

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

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

KIRK GRIFFITH, PH.D. is a Clinical Neuropsychologist provider practicing in COLUMBIA, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PH.D.. NPI: 1609101716. 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.

KIRK GRIFFITH, PH.D. appears in the CMS NPPES registry as a Clinical Neuropsychologist provider holding PH.D. credentials at 5565 STERRETT PL, COLUMBIA, MD, 21044, with a listed phone of (410) 772-7155. NPI 1609101716 was issued on 10/07/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIFFITH 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 Clinical Neuropsychologist providers operate outside Part D entirely.

Clinical Neuropsychologist is a mid-sized specialty nationwide, with 5,728 enrolled providers across 53 states and an average of 877 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

5565 STERRETT PL
COLUMBIA, MD 21044

Provider Details

NPI 1609101716
Specialty Clinical Neuropsychologist
Credentials PH.D.
Gender Male
NPI Issued 10/07/2009

Clinical Neuropsychologist Overview

How KIRK GRIFFITH, PH.D. fits within the Clinical Neuropsychologist landscape nationally.

5,728
Clinical Neuropsychologist Providers in US
53
States with Clinical Neuropsychologist
877
Avg Claims per Provider

Nearby Clinical Neuropsychologist Providers in Maryland

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

Compare Clinical Neuropsychologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is KIRK GRIFFITH, PH.D.'s specialty?
KIRK GRIFFITH, PH.D. specializes in Clinical Neuropsychologist and practices in COLUMBIA, Maryland. Credentials: PH.D..
Where is KIRK GRIFFITH, PH.D. located?
KIRK GRIFFITH, PH.D. is located at 5565 STERRETT PL, COLUMBIA, MD, 21044. Phone: (410) 772-7155.
What is KIRK GRIFFITH, PH.D.'s NPI number?
KIRK GRIFFITH, PH.D.'s National Provider Identifier (NPI) is 1609101716, issued on 10/07/2009.
How many Clinical Neuropsychologist providers are there in the US?
There are 5,728 Clinical Neuropsychologist providers across 53 states in the US. The average Clinical Neuropsychologist provider writes 877 Medicare Part D claims per year.
Does KIRK GRIFFITH, PH.D. accept Medicare?
KIRK GRIFFITH, PH.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KIRK GRIFFITH, PH.D.'s credentials?
KIRK GRIFFITH, PH.D.'s NPI is 1609101716 with credentials PH.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.
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