2026 NPPES data Adult Psychiatric/Mental Health Clinical Nurse Specialist NPI 1639268626 APRN
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ARTHUR GUERRA, APRN

Adult Psychiatric/Mental Health Clinical Nurse Specialist in HARTFORD, Connecticut. 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
202
Medicare Part D claims · 59 beneficiaries · Adult Psychiatric/Mental Health Clinical Nurse Specialist avg: 1K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.4127/100
▲ 3 pts above national avg 83.1 · [object Object]

What the federal data shows

ARTHUR GUERRA, APRN reported a CMS MIPS final score of 86.4127/100 — above the 83.1 national average — and filed 202 Medicare Part D claims in 2023.

86.4127/100
MIPS score · +3 vs avg
202
Part D claims, 2023
94%
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.

ARTHUR GUERRA, APRN's MIPS score vs every scored U.S. clinician

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

86 Top 48% higher than 52% 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. 90–100: 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

What does the federal data show about ARTHUR GUERRA, APRN?

High performer (top quartile)

NPI registry status

Active

Issued 10/11/2006

NPI 1639268626

Primary specialty

Adult Psychiatric/Mental Health Clinical Nurse Specialist

Niche

953 US NPIs in this specialty

Medicare Part D claims

202 85% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

MIPS final score

86.4127/100 3.3127000000000066% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Adult Psychiatric/Mental Health Clinical Nurse Specialist compares to other specialties among Connecticut providers

Connecticut providers

Adult Psychiatric/Mental Health Clinical Nurse Specialist share within Connecticut

1. Adult Psychiatric/Mental Health Clinical Nurse Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Psychiatric/Mental Health Clinical Nurse Specialist share within Connecticut

Medicare quality performance — MIPS

ARTHUR GUERRA, APRN's 2023 MIPS final score plotted against the Adult Psychiatric/Mental Health Clinical Nurse Specialist national average

High performer (top quartile)
MIPS Final Score
86.4127/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Adult Psychiatric/Mental Health Clinical Nurse Specialist) — 86.4127/100 vs national avg 83.1

0%100%National avg83%86.4%
MIPS final score (Adult Psychiatric/Mental Health Clinical Nurse Specialist) — 86.4127/100 vs national avg 83.1

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).

ARTHUR GUERRA, APRN is a Adult Psychiatric/Mental Health Clinical Nurse Specialist provider practicing in HARTFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APRN. NPI: 1639268626. 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.

ARTHUR GUERRA, APRN appears in the CMS NPPES registry as a Adult Psychiatric/Mental Health Clinical Nurse Specialist provider holding APRN credentials at 200 RETREAT AVENUE, HARTFORD, CT, 06106, with a listed phone of (860) 545-7063. NPI 1639268626 was issued on 10/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GUERRA 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 202 prescription claims written by this provider, covering 59 Medicare beneficiaries and totaling roughly $14K in drug spend, split 6% brand-name and 94% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.4127/100 for the 2023 performance year (Quality 81.9936, Cost 43.0396), compared with the national average of 83.1.

Adult Psychiatric/Mental Health Clinical Nurse Specialist is a narrow specialty nationwide, with 953 enrolled providers across 51 states and an average of 1,309 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

200 RETREAT AVENUE
HARTFORD, CT 06106

Provider Details

NPI 1639268626
Specialty Adult Psychiatric/Mental Health Clinical Nurse Specialist
Credentials APRN
Gender Male
NPI Issued 10/11/2006

CMS Quality Score (MIPS)

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

86.4127
Final Score
Avg: 83.1
81.9936
Quality
43.0396
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ARTHUR GUERRA, APRN 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.

HARTFORD HOSPITAL
★★★★☆ 4/5
HARTFORD, CT
Acute Care Hospitals
CMS CCN: 070025

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 · Generic-heavy

ARTHUR GUERRA, APRN — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 202 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.

202
Total Claims
$14K
Total Drug Cost
59
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
349
Total Day Supply
10,291
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$6K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
57.1 years
Avg HCC Risk Score
1.52
Gender Split
64% female / 36% male
Age Distribution
<65: 36, 65-74: 20, 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.

Drug Claims
Venlafaxine Hcl Er
Venlafaxine Hcl
28
Bupropion Xl
Bupropion Hcl
14
Dextroamphetamine-Amphetamine
Dextroamphetamine/Amphetamine
14
Quetiapine Fumarate
13
Dextroamphetamine Sulfate
11
Fluoxetine Hcl
11

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

Adult Psychiatric/Mental Health Clinical Nurse Specialist Overview

How ARTHUR GUERRA, APRN fits within the Adult Psychiatric/Mental Health Clinical Nurse Specialist landscape nationally.

953
Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in US
51
States with Adult Psychiatric/Mental Health Clinical Nurse Specialist
1,309
Avg Claims per Provider

ARTHUR GUERRA, APRN's 202 claims are below the specialty average of 1,309.

Nearby Adult Psychiatric/Mental Health Clinical Nurse Specialist Providers in Connecticut

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

Compare Adult Psychiatric/Mental Health Clinical Nurse Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is ARTHUR GUERRA, APRN's specialty?
ARTHUR GUERRA, APRN specializes in Adult Psychiatric/Mental Health Clinical Nurse Specialist and practices in HARTFORD, Connecticut. Credentials: APRN.
How much does ARTHUR GUERRA, APRN prescribe under Medicare Part D?
In 2023, ARTHUR GUERRA, APRN wrote 202 Medicare Part D claims totaling $14K in drug costs for 59 beneficiaries.
What is ARTHUR GUERRA, APRN's Medicare quality score?
ARTHUR GUERRA, APRN has a CMS MIPS Final Score of 86.4127/100 (Quality: 81.9936, Cost: 43.0396). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ARTHUR GUERRA, APRN located?
ARTHUR GUERRA, APRN is located at 200 RETREAT AVENUE, HARTFORD, CT, 06106. Phone: (860) 545-7063.
What is ARTHUR GUERRA, APRN's NPI number?
ARTHUR GUERRA, APRN's National Provider Identifier (NPI) is 1639268626, issued on 10/11/2006.
Does ARTHUR GUERRA, APRN prescribe more brand-name or generic drugs?
ARTHUR GUERRA, APRN's prescribing is 6% brand-name and 94% generic drugs by claim count, with $6K in brand drug costs.
How many Adult Psychiatric/Mental Health Clinical Nurse Specialist providers are there in the US?
There are 953 Adult Psychiatric/Mental Health Clinical Nurse Specialist providers across 51 states in the US. The average Adult Psychiatric/Mental Health Clinical Nurse Specialist provider writes 1,309 Medicare Part D claims per year.
What drugs does ARTHUR GUERRA, APRN prescribe most often?
Based on 2023 Medicare Part D data, ARTHUR GUERRA, APRN's most frequently prescribed drugs include Venlafaxine Hcl Er, Bupropion Xl, Dextroamphetamine-Amphetamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ARTHUR GUERRA, APRN accept Medicare?
ARTHUR GUERRA, APRN appears in CMS Medicare data with 202 Part D claims and 59 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ARTHUR GUERRA, APRN's credentials?
ARTHUR GUERRA, APRN's NPI is 1639268626 with credentials APRN. 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.
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