NPI registry status
Active
2026 NPPES data Prosthetist NPI 1548852031 CPO
Verify on CMS → Michael Kayser, CPO
Prosthetist in Flagstaff, Arizona.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,451 in Prosthetist, 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
Michael Kayser, CPO is a Prosthetist in Flagstaff, Arizona, listed in the federal CMS National Provider Identifier registry.
- #266
- Prosthetist rank among Arizona 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 Michael Kayser, CPO
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 1548852031), first enumerated 02/06/2021.
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 1548852031 · Prosthetist
NPI-10 · ENUM-RECENT · TAX-NARROW · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1548852031
- ENUM-RECENT 2021
- TAX-NARROW 1,451
- RX-NONE No Part D
- BOOK-THIN 18 in Arizona
- PHOTO-ENUM Robert Carey · 2021
What does the federal data show about Michael Kayser, CPO?
Quality data not reportedPrimary specialty
Prosthetist
Specialty distribution in Arizona
How Prosthetist compares to other specialties among Arizona 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 Prosthetist. 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 | 1548852031 |
|---|---|
| Specialty | Prosthetist |
| Credentials | CPO |
| Gender | Male |
| NPI Issued | 02/06/2021 |
Prosthetist Overview
How Michael Kayser, CPO fits within the Prosthetist landscape nationally.
1,451
Prosthetist Providers in US
49
States with Prosthetist
459
Avg Claims per Provider
Nationwide Prosthetist peers with similar MIPS or enrollment year
Two federal-record peer sets for Kayser, both outside Arizona 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 Prosthetist Providers in Arizona
Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Kayser.
One of 18 Prosthetist providers enrolled in Arizona, 5 are shown here.
Tate Ackerman
CPO
Sun City West, AZ
Anthony Berland
CPO
Phoenix, AZ
Lisa Bowers
Phoenix, AZ
Mackinley Burrell
CP
Anthem, AZ
Joshua Clark
MSPO
Tucson, AZ
Compare Prosthetist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Michael Kayser, CPO's specialty? ▼
Michael Kayser, CPO specializes in Prosthetist and practices in Flagstaff, Arizona. Credentials: CPO.
Where is Michael Kayser, CPO located? ▼
Michael Kayser, CPO is located at 601 E PICCADILLY DR APT 426, Flagstaff, AZ, 86001. Phone: (928) 255-8665.
What is Michael Kayser, CPO's NPI number? ▼
Michael Kayser, CPO's National Provider Identifier (NPI) is 1548852031, issued on 02/06/2021.
How many Prosthetist providers are there in the US? ▼
There are 1,451 Prosthetist providers across 49 states in the US. The average Prosthetist provider writes 459 Medicare Part D claims per year.
Does Michael Kayser, CPO accept Medicare? ▼
Michael Kayser, CPO appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Kayser, CPO's credentials? ▼
Michael Kayser, CPO's NPI is 1548852031 with credentials CPO. 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.