NPI registry status
Active
2026 NPPES data Paramedic NPI 1427714419 MICP
Verify on CMS → William Mackreth, MICP
Paramedic in Anchorage, Alaska.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,914 in Paramedic, 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.
What the federal data shows
William Mackreth, MICP is a Paramedic in Anchorage, Alaska, listed in the federal CMS National Provider Identifier registry.
- #112
- Paramedic rank among Alaska specialties
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.
Federal trust snapshot
What official records show about William Mackreth, MICP
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1427714419), first enumerated 11/13/2021.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1427714419 · Paramedic
NPI-10 · ENUM-RECENT · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1427714419
- ENUM-RECENT 2021
- TAX-NARROW 1,914
- RX-NONE No Part D
- BOOK-THIN 19 in Alaska
- PHOTO-ENUM James Rooker · 2021
What does the federal data show about William Mackreth, MICP?
Quality data not reportedPrimary specialty
Paramedic
Specialty distribution in Alaska
How Paramedic compares to other specialties among Alaska providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Paramedic. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1427714419 |
|---|---|
| Specialty | Paramedic |
| Credentials | MICP |
| Gender | Male |
| NPI Issued | 11/13/2021 |
Paramedic Overview
How William Mackreth, MICP fits within the Paramedic landscape nationally.
1,914
Paramedic Providers in US
53
States with Paramedic
451
Avg Claims per Provider
Nationwide Paramedic peers with similar MIPS or enrollment year
Two federal-record peer sets for Mackreth, both outside Alaska so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2021)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Paramedic Providers in Alaska
Other clinicians with the same primary specialty enrolled in Alaska, drawn from the same CMS NPPES roster as Mackreth.
One of 19 Paramedic providers enrolled in Alaska, 5 are shown here.
Jennifer Brown
Fairbanks, AK
Michael Cooper
IDMT
Elmendorf Anchorage, AK
Molly Etters
MICP
Anchorage, AK
Bethany Flynn
Healy, AK
Eric Gallagher
PARAMEDIC
Anchorage, AK
Compare Paramedic nationally: see state-by-state distribution →
Frequently Asked Questions
What is William Mackreth, MICP's specialty? ▼
William Mackreth, MICP specializes in Paramedic and practices in Anchorage, Alaska. Credentials: MICP.
Where is William Mackreth, MICP located? ▼
William Mackreth, MICP is located at 5630 B ST, Anchorage, AK, 99518. Phone: (907) 441-8559.
What is William Mackreth, MICP's NPI number? ▼
William Mackreth, MICP's National Provider Identifier (NPI) is 1427714419, issued on 11/13/2021.
How many Paramedic providers are there in the US? ▼
There are 1,914 Paramedic providers across 53 states in the US. The average Paramedic provider writes 451 Medicare Part D claims per year.
Does William Mackreth, MICP accept Medicare? ▼
William Mackreth, MICP appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Mackreth, MICP's credentials? ▼
William Mackreth, MICP's NPI is 1427714419 with credentials MICP. 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.
- 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.