2026 NPPES data Mental Health Counselor NPI 1316352347 MA, LPC
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Katharine Mazuy, MA, LPC

Mental Health Counselor in Boulder, Colorado. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 292,612 in Mental Health Counselor, 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.
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Katharine Mazuy, MA, LPC is a Mental Health Counselor in Boulder, Colorado, listed in the federal CMS National Provider Identifier registry.

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.

What does the federal data show about Katharine Mazuy, MA, LPC?

Quality data not reported

NPI registry status

Active

Issued 06/28/2014

NPI 1316352347

Primary specialty

Mental Health Counselor

High-volume

292,612 US NPIs in this specialty

Specialty distribution in Colorado

How Mental Health Counselor compares to other specialties among Colorado providers

Colorado providers

Largest specialties in Colorado (% of in-state providers)

Behavior Technician — 7.8%Behavior Technician7.8%Mental Health Counselor — 6.2%Mental Health Counselor6.2%Physical Therapist — 4.2%Physical Therapist4.2%Clinical Social Worker — 4.2%Clinical Social Worker4.2%Professional Counselor — 3.7%Professional Counselor3.7%Registered Nurse — 3.6%Registered Nurse3.6%
Largest specialties in Colorado (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Mental Health Counselor (ABMS / AOA reference)

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

Est. board-certified rate (Mental Health Counselor) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Mental Health Counselor) — 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).

Katharine Mazuy, MA, LPC appears in the CMS NPPES registry as a Mental Health Counselor provider holding MA, LPC credentials at 2727 PINE ST, Boulder, CO, 80302, with a listed phone of (720) 201-3868. NPI 1316352347 was issued on 06/28/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Mazuy 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 Mental Health Counselor providers operate outside Part D entirely.

Mental Health Counselor is a high-volume specialty nationwide, with 292,612 enrolled providers across 55 states and an average of 1,063 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

2727 PINE ST
Boulder, CO 80302

Provider Details

NPI 1316352347
Specialty Mental Health Counselor
Credentials MA, LPC
Gender Female
NPI Issued 06/28/2014

Mental Health Counselor Overview

How Katharine Mazuy, MA, LPC fits within the Mental Health Counselor landscape nationally.

292,612
Mental Health Counselor Providers in US
55
States with Mental Health Counselor
1,063
Avg Claims per Provider

Nearby Mental Health Counselor Providers in Colorado

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

Compare Mental Health Counselor 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 Colorado medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Mental Health Counselor 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 Katharine Mazuy, MA, LPC's specialty?
Katharine Mazuy, MA, LPC specializes in Mental Health Counselor and practices in Boulder, Colorado. Credentials: MA, LPC.
Where is Katharine Mazuy, MA, LPC located?
Katharine Mazuy, MA, LPC is located at 2727 PINE ST, Boulder, CO, 80302. Phone: (720) 201-3868.
What is Katharine Mazuy, MA, LPC's NPI number?
Katharine Mazuy, MA, LPC's National Provider Identifier (NPI) is 1316352347, issued on 06/28/2014.
How many Mental Health Counselor providers are there in the US?
There are 292,612 Mental Health Counselor providers across 55 states in the US. The average Mental Health Counselor provider writes 1,063 Medicare Part D claims per year.
Does Katharine Mazuy, MA, LPC accept Medicare?
Katharine Mazuy, MA, LPC appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katharine Mazuy, MA, LPC's credentials?
Katharine Mazuy, MA, LPC's NPI is 1316352347 with credentials MA, LPC. 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

Compiled from official public sources by the PlainDoctor editorial team.