2026 NPPES data Psychiatric/Mental Health Registered Nurse NPI 1235829201 PMHNP
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MICHAEL BASS, PMHNP

Psychiatric/Mental Health Registered Nurse in PHOENIX, Arizona. 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
69
Medicare Part D claims · 14 beneficiaries · Psychiatric/Mental Health Registered Nurse avg: 893
Industry payments
$438.59
23 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL BASS, PMHNP filed 69 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Registered Nurse in PHOENIX, Arizona.

69
Part D claims, 2023
$438.59
industry payments (Sunshine Act)

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.

MICHAEL BASS, PMHNP's Medicare Part D volume vs every U.S. prescriber

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

69 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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 MICHAEL BASS, PMHNP?

Quality data not reported

NPI registry status

Active

Issued 05/11/2023

NPI 1235829201

Primary specialty

Psychiatric/Mental Health Registered Nurse

Mid-sized

11,711 US NPIs in this specialty

Medicare Part D claims

69 92% vs specialty avg

2023 prescription claims

Specialty avg: 893

Specialty distribution in Arizona

How Psychiatric/Mental Health Registered Nurse compares to other specialties among Arizona providers

Arizona providers

Psychiatric/Mental Health Registered Nurse share within Arizona

1. Psychiatric/Mental Health Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Registered Nurse share within Arizona

Specialty board-certification context

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

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

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

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

MICHAEL BASS, PMHNP is a Psychiatric/Mental Health Registered Nurse provider practicing in PHOENIX, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PMHNP. NPI: 1235829201. 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.

MICHAEL BASS, PMHNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Registered Nurse provider holding PMHNP credentials at 1840 N 95TH AVE STE 132, PHOENIX, AZ, 85037, with a listed phone of (623) 932-6950. NPI 1235829201 was issued on 05/11/2023. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BASS 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 69 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $676 in drug spend. 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 Registered Nurse is a mid-sized specialty nationwide, with 11,711 enrolled providers across 54 states and an average of 893 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

1840 N 95TH AVE STE 132
PHOENIX, AZ 85037

Provider Details

NPI 1235829201
Specialty Psychiatric/Mental Health Registered Nurse
Credentials PMHNP
Gender Male
NPI Issued 05/11/2023

Hospital and facility affiliations

Facilities where MICHAEL BASS, 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.

DESERT BOLT BEHAVIORAL LLC
ANTHEM, AZ
RYAN M SHEADE LCSW LLC
SCOTTSDALE, AZ
SOUTHWEST NETWORK
PHOENIX, AZ

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MICHAEL BASS, PMHNP. Source: openpaymentsdata.cms.gov.

Total received

$439

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

69
Total Claims
$676
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
82
Total Day Supply
2,370
Generic Drug Cost
$609

Patient Demographics

Average Patient Age
65.9 years
Avg HCC Risk Score
1.15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lamotrigine
12

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

Psychiatric/Mental Health Registered Nurse Overview

How MICHAEL BASS, PMHNP fits within the Psychiatric/Mental Health Registered Nurse landscape nationally.

11,711
Psychiatric/Mental Health Registered Nurse Providers in US
54
States with Psychiatric/Mental Health Registered Nurse
893
Avg Claims per Provider

MICHAEL BASS, PMHNP's 69 claims are below the specialty average of 893.

Nearby Psychiatric/Mental Health Registered Nurse Providers in Arizona

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

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

Frequently Asked Questions

What is MICHAEL BASS, PMHNP's specialty?
MICHAEL BASS, PMHNP specializes in Psychiatric/Mental Health Registered Nurse and practices in PHOENIX, Arizona. Credentials: PMHNP.
How much does MICHAEL BASS, PMHNP prescribe under Medicare Part D?
In 2023, MICHAEL BASS, PMHNP wrote 69 Medicare Part D claims totaling $676 in drug costs for 14 beneficiaries.
Where is MICHAEL BASS, PMHNP located?
MICHAEL BASS, PMHNP is located at 1840 N 95TH AVE STE 132, PHOENIX, AZ, 85037. Phone: (623) 932-6950.
What is MICHAEL BASS, PMHNP's NPI number?
MICHAEL BASS, PMHNP's National Provider Identifier (NPI) is 1235829201, issued on 05/11/2023.
How many Psychiatric/Mental Health Registered Nurse providers are there in the US?
There are 11,711 Psychiatric/Mental Health Registered Nurse providers across 54 states in the US. The average Psychiatric/Mental Health Registered Nurse provider writes 893 Medicare Part D claims per year.
What drugs does MICHAEL BASS, PMHNP prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL BASS, PMHNP's most frequently prescribed drugs include Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL BASS, PMHNP accept Medicare?
MICHAEL BASS, PMHNP appears in CMS Medicare data with 69 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL BASS, PMHNP's credentials?
MICHAEL BASS, PMHNP's NPI is 1235829201 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