2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1366626210 APN
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Karen Guess, APN

Psychiatric/Mental Health Nurse Practitioner in Dallas, Texas.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 39,953 in Psychiatric/Mental Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
649
Medicare Part D claims · 65 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.2/100
▼ 2 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Karen Guess, APN reported a CMS MIPS final score of 81.2/100 - below the 83.1 national average - and filed 649 Medicare Part D claims in 2023.

81.2/100
MIPS score · -2 vs avg
649
Part D claims, 2023
96%
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.

Karen Guess, APN's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

81 36th percentile higher than 36% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Karen Guess, APN sits

This provider among psychiatric/mental health nurse practitioner peers

Across the 1,917 psychiatric/mental health nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Karen Guess, APN writes more Part D claims than 53% of them and scores higher on MIPS quality than 31% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 45Karen Guess, APN-Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 31
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one psychiatric/mental health nurse practitioner peer from a representative sample of 60; the gold marker is Karen Guess, APN. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Karen Guess, APN?

Near national average

NPI registry status

Active

Issued 12/27/2007

NPI 1366626210

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

649 30% vs specialty avg

2023 prescription claims

Specialty avg: 927

MIPS final score

81.2/100 1.9 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Texas

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

Texas providers
Behavior Technician - 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program - 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Professional Counselor - 4.4%Professional Counselor4.4%Pharmacist - 4.4%Pharmacist4.4%Speech-Language Pathologist - 3.9%Speech-Language Pathologist3.9%Psychiatric/Mental Health Nurse Practitioner - 0.8%Psychiatric/Mental Health Nurse Practitioner0.8%
Largest specialties in Texas (% of in-state providers)

Medicare quality performance, MIPS

Karen Guess, APN's 2023 MIPS final score plotted against the Psychiatric/Mental Health Nurse Practitioner national average

Near national average
MIPS Final Score
81.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Psychiatric/Mental Health Nurse Practitioner) - 81.2/100 vs national avg 83.1

0%100%National avg83%81.2%
MIPS final score (Psychiatric/Mental Health Nurse Practitioner) - 81.2/100 vs national avg 83.1
How MIPS and board certification work

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).

Karen Guess, APN appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding APN credentials at 1822 YOUNG ST, Dallas, TX, 75201, with a listed phone of (214) 743-1200. NPI 1366626210 was issued on 12/27/2007.

Medicare Part D records for calendar year 2023 show 649 prescription claims written by this provider, covering 65 Medicare beneficiaries and totaling roughly $75K in drug spend, split 4% brand-name and 96% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 81.2/100 for the 2023 performance year (Quality 63.1, Cost 100), compared with the national average of 83.1.

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

1822 YOUNG ST
Dallas, TX 75201

Provider Details

NPI 1366626210
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials APN
Gender Female
NPI Issued 12/27/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

81.1666
Final Score
Avg: 83.1
63.0554
Quality
100
Cost
49
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Karen Guess, APN 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.

Dallas County Mental Health And Mental Retardation Center
Dallas, TX

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

License & disciplinary context - Texas TMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Karen Guess, APN. To verify Karen Guess, APN's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Karen Guess, APN - brand share 4.0%
Psychiatric/Mental Health Nurse Practitioner average

4% brand-name claims vs 96% generic, on 649 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.

649
Total Claims
$75K
Total Drug Cost
65
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
671
Total Day Supply
19,522
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$60K
Generic Drug Cost
$15K

Patient Demographics

Average Patient Age
55.9 years
Avg HCC Risk Score
1.83
Gender Split
37% female / 63% male
Age Distribution
<65: 48, 65-74: 17, 75-84: 0, 85+: 0

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Karen Guess, APN 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
85
Gabapentin
68
Fluoxetine Hcl
50
Trazodone Hcl
49
Risperidone
46
Sertraline Hcl
40
Hydroxyzine Pamoate
35
Lithium Carbonate
28
Buspirone Hcl
26
Paroxetine Hcl
25

* 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 Karen Guess, APN 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

Karen Guess, APN's 649 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Texas

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Texas medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Psychiatric/Mental Health Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Karen Guess, APN's specialty?
Karen Guess, APN specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Dallas, Texas. Credentials: APN.
How much does Karen Guess, APN prescribe under Medicare Part D?
In 2023, Karen Guess, APN wrote 649 Medicare Part D claims totaling $75K in drug costs for 65 beneficiaries.
What is Karen Guess, APN's Medicare quality score?
Karen Guess, APN has a CMS MIPS Final Score of 81.2/100 (Quality: 63.1, Cost: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Karen Guess, APN located?
Karen Guess, APN is located at 1822 YOUNG ST, Dallas, TX, 75201. Phone: (214) 743-1200.
What is Karen Guess, APN's NPI number?
Karen Guess, APN's National Provider Identifier (NPI) is 1366626210, issued on 12/27/2007.
Does Karen Guess, APN prescribe more brand-name or generic drugs?
Karen Guess, APN's prescribing is 4% brand-name and 96% generic drugs by claim count, with $60K 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 Karen Guess, APN prescribe most often?
Based on 2023 Medicare Part D data, Karen Guess, APN's most frequently prescribed drugs include Quetiapine Fumarate, Gabapentin, Fluoxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Guess, APN accept Medicare?
Karen Guess, APN appears in CMS Medicare data with 649 Part D claims and 65 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Guess, APN's credentials?
Karen Guess, APN's NPI is 1366626210 with credentials APN. 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

View source datasets and methodology notes
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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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

Compiled from official public sources by the PlainDoctor editorial team.