NPI registry status
Active
2026 NPPES data Adult Companion NPI 1336954932
Verify on CMS → Christopher Mahan
Adult Companion in Lennox, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 12,696 in Adult Companion, 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
Christopher Mahan is an Adult Companion in Lennox, South Dakota, listed in the federal CMS National Provider Identifier registry.
- #140
- Adult Companion rank among South Dakota 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 Christopher Mahan
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 1336954932), first enumerated 02/11/2025.
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 1336954932 · Adult Companion
NPI-10 · ENUM-NEW · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1336954932
- ENUM-NEW 2025
- TAX-MID 13K Adult Companion
- RX-NONE No Part D
- BOOK-THIN 8 in South Dakota
- PHOTO-ENUM Peter Graham · 2025
What does the federal data show about Christopher Mahan?
Quality data not reportedPrimary specialty
Adult Companion
Specialty distribution in South Dakota
How Adult Companion compares to other specialties among South Dakota 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 Adult Companion. 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 | 1336954932 |
|---|---|
| Specialty | Adult Companion |
| Gender | Male |
| NPI Issued | 02/11/2025 |
Adult Companion Overview
How Christopher Mahan fits within the Adult Companion landscape nationally.
12,696
Adult Companion Providers in US
53
States with Adult Companion
952
Avg Claims per Provider
Nationwide Adult Companion peers with similar MIPS or enrollment year
Two federal-record peer sets for Mahan, both outside South Dakota so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2025)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Companion Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Mahan.
One of 8 Adult Companion providers enrolled in South Dakota, 5 are shown here.
Jolene Johnson
Lake Norden, SD
Jade McGrane
Belle Fourche, SD
Angel Meis
Aberdeen, SD
Mickey Schager
Sioux Falls, SD
Sherri Schroeder
Sioux Falls, SD
Compare Adult Companion nationally: see state-by-state distribution →
Frequently Asked Questions
What is Christopher Mahan's specialty? ▼
Christopher Mahan specializes in Adult Companion and practices in Lennox, South Dakota.
Where is Christopher Mahan located? ▼
Christopher Mahan is located at 46473 US HIGHWAY 18, Lennox, SD, 57039. Phone: (605) 360-5478.
What is Christopher Mahan's NPI number? ▼
Christopher Mahan's National Provider Identifier (NPI) is 1336954932, issued on 02/11/2025.
How many Adult Companion providers are there in the US? ▼
There are 12,696 Adult Companion providers across 53 states in the US. The average Adult Companion provider writes 952 Medicare Part D claims per year.
Does Christopher Mahan accept Medicare? ▼
Christopher Mahan appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Mahan's credentials? ▼
Christopher Mahan's NPI is 1336954932. 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.