2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1790497345 PMHNP
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JOHN GRIFFIS, PMHNP

Psychiatric/Mental Health Nurse Practitioner in CHARLOTTESVILLE, Virginia. 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
786
Medicare Part D claims · 61 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JOHN GRIFFIS, PMHNP filed 786 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in CHARLOTTESVILLE, Virginia, prescribing 88% generic.

786
Part D claims, 2023
88%
generic prescribing

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.

JOHN GRIFFIS, PMHNP's Medicare Part D volume vs every U.S. prescriber

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

786 Top 29% higher than 71% 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%). This entry sits in this band. 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

What does the federal data show about JOHN GRIFFIS, PMHNP?

Quality data not reported

NPI registry status

Active

Issued 12/14/2022

NPI 1790497345

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

786 15% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Virginia

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Virginia providers

Virginia providers

Psychiatric/Mental Health Nurse Practitioner share within Virginia

1. Psychiatric/Mental Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Nurse Practitioner share within Virginia

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatric/Mental Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — 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).

JOHN GRIFFIS, PMHNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMHNP credentials at 1215 LEE ST, CHARLOTTESVILLE, VA, 22908, with a listed phone of (434) 924-5569. NPI 1790497345 was issued on 12/14/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIFFIS 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 786 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $174K in drug spend, split 12% brand-name and 88% generic by claim count. 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.

Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 39,953 enrolled providers across 54 states and an average of 927 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

1215 LEE ST
CHARLOTTESVILLE, VA 22908

Provider Details

NPI 1790497345
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials PMHNP
Gender Male
NPI Issued 12/14/2022

Hospital and facility affiliations

Facilities where JOHN GRIFFIS, PMHNP 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.

REGION TEN COMMUNITY COMMUNITY SERVICES BOARD
CHARLOTTESVILLE, VA

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

Brand vs generic prescribing mix · Typical

JOHN GRIFFIS, PMHNP — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 786 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.

786
Total Claims
$174K
Total Drug Cost
61
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
986
Total Day Supply
28,733
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$139K
Generic Drug Cost
$35K

Patient Demographics

Average Patient Age
51.0 years
Avg HCC Risk Score
1.11
Gender Split
38% female / 62% male
Age Distribution
<65: 47, 65-74: 11, 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 JOHN GRIFFIS, PMHNP 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
Risperidone
52
Quetiapine Fumarate
48
Trazodone Hcl
45
Divalproex Sodium
37
Benztropine Mesylate
33
Sertraline Hcl
33
Olanzapine
31
Haloperidol Decanoate
30
Hydroxyzine Hcl
30
Venlafaxine Hcl Er
Venlafaxine Hcl
30

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

Psychiatric/Mental Health Nurse Practitioner Overview

How JOHN GRIFFIS, PMHNP fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.

39,953
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider

JOHN GRIFFIS, PMHNP's 786 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Virginia

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

Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN GRIFFIS, PMHNP's specialty?
JOHN GRIFFIS, PMHNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in CHARLOTTESVILLE, Virginia. Credentials: PMHNP.
How much does JOHN GRIFFIS, PMHNP prescribe under Medicare Part D?
In 2023, JOHN GRIFFIS, PMHNP wrote 786 Medicare Part D claims totaling $174K in drug costs for 61 beneficiaries.
Where is JOHN GRIFFIS, PMHNP located?
JOHN GRIFFIS, PMHNP is located at 1215 LEE ST, CHARLOTTESVILLE, VA, 22908. Phone: (434) 924-5569.
What is JOHN GRIFFIS, PMHNP's NPI number?
JOHN GRIFFIS, PMHNP's National Provider Identifier (NPI) is 1790497345, issued on 12/14/2022.
Does JOHN GRIFFIS, PMHNP prescribe more brand-name or generic drugs?
JOHN GRIFFIS, PMHNP's prescribing is 12% brand-name and 88% generic drugs by claim count, with $139K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US?
There are 39,953 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does JOHN GRIFFIS, PMHNP prescribe most often?
Based on 2023 Medicare Part D data, JOHN GRIFFIS, PMHNP's most frequently prescribed drugs include Risperidone, Quetiapine Fumarate, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN GRIFFIS, PMHNP accept Medicare?
JOHN GRIFFIS, PMHNP appears in CMS Medicare data with 786 Part D claims and 61 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN GRIFFIS, PMHNP's credentials?
JOHN GRIFFIS, PMHNP's NPI is 1790497345 with credentials PMHNP. 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