NPI registry status
Active
2026 NPPES data Perfusionist NPI 1154442150
Verify on CMS → Johnnie Smith
Perfusionist in Hattiesburg, Mississippi.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,467 in Perfusionist, 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
Johnnie Smith is a Perfusionist in Hattiesburg, Mississippi, 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 Johnnie Smith?
Quality data not reportedPrimary specialty
Perfusionist
Specialty distribution in Mississippi
How Perfusionist compares to other specialties among Mississippi 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 Perfusionist. 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).
Johnnie Smith appears in the CMS NPPES registry as a Perfusionist provider at 415 S 28TH AVE, Hattiesburg, MS, 39401, with a listed phone of (601) 268-5800. NPI 1154442150 was issued on 04/03/2007.
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 Perfusionist providers operate outside Part D entirely.
Perfusionist is a narrow specialty nationwide, with 1,467 enrolled providers across 43 states and an average of 143 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
Provider Details
| NPI | 1154442150 |
|---|---|
| Specialty | Perfusionist |
| Gender | Male |
| NPI Issued | 04/03/2007 |
Perfusionist Overview
How Johnnie Smith fits within the Perfusionist landscape nationally.
1,467
Perfusionist Providers in US
43
States with Perfusionist
143
Avg Claims per Provider
Nearby Perfusionist Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Smith.
Logan Abrams
Hattiesburg, MS
Dr. William Crum
CCP
Hattiesburg, MS
Jeannie Jackson
Hattiesburg, MS
Dr. Robert Ledbetter
CCP
Hattiesburg, MS
Dr. Juan Tucker
CCP
Hattiesburg, MS
Compare Perfusionist 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 Mississippi medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Perfusionist 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Mississippi
Frequently Asked Questions
What is Johnnie Smith's specialty? ▼
Johnnie Smith specializes in Perfusionist and practices in Hattiesburg, Mississippi.
Where is Johnnie Smith located? ▼
Johnnie Smith is located at 415 S 28TH AVE, Hattiesburg, MS, 39401. Phone: (601) 268-5800.
What is Johnnie Smith's NPI number? ▼
Johnnie Smith's National Provider Identifier (NPI) is 1154442150, issued on 04/03/2007.
How many Perfusionist providers are there in the US? ▼
There are 1,467 Perfusionist providers across 43 states in the US. The average Perfusionist provider writes 143 Medicare Part D claims per year.
Does Johnnie Smith accept Medicare? ▼
Johnnie Smith appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Johnnie Smith's credentials? ▼
Johnnie Smith's NPI is 1154442150. 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 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.
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 May 2026.