NPI registry status
Active
2026 NPPES data Periodontics NPI 1164609384 DDS, MS
Verify on CMS → Truman Johnson, DDS, MS
Periodontics in Cedar Rapids, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,120 in Periodontics, 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.
Prescribing volume
114
Medicare Part D claims · 46 beneficiaries · Periodontics avg: 279
What the federal data shows
Truman Johnson, DDS, MS filed 114 Medicare Part D claims in 2024 as a Periodontics in Cedar Rapids, Iowa.
- 114
- Part D claims, 2024
- ≥34th
- pct by Part D claim volume (lower-bound band)
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 Truman Johnson, DDS, MS
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 1164609384), first enumerated 01/30/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 114 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
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 1164609384 · Periodontics
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1164609384
- ENUM-MID 2008
- TAX-MID 6K Periodontics
- RX-LIGHT 114
- BOOK-THIN 47 in Iowa
- PHOTO-ENUM Irina Adler · 2008
Truman Johnson, DDS, MS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
114 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Truman Johnson, DDS, MS?
Quality data not reportedPrimary specialty
Periodontics
Medicare Part D claims
114 59% vs specialty avg
Specialty distribution in Iowa
How Periodontics compares to other specialties among Iowa 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 Periodontics. 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 | 1164609384 |
|---|---|
| Specialty | Periodontics |
| Credentials | DDS, MS |
| Gender | Male |
| NPI Issued | 01/30/2008 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
114
Total Claims
$525
Total Drug Cost
46
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 116
- Total Day Supply
- 1,349
- Generic Drug Cost
- $511
- Antibiotic Claims
- 49
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 0.81
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 0, 65-74: 31, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Truman Johnson, DDS, MS prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amoxicillin
Amoxicillin
39 claims
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
33 claims
- Etodolac
Etodolac
16 claims
| Drug | Claims |
|---|---|
| Amoxicillin | 39 |
| Chlorhexidine Gluconate | 33 |
| Etodolac | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Periodontics Overview
How Truman Johnson, DDS, MS fits within the Periodontics landscape nationally.
6,120
Periodontics Providers in US
53
States with Periodontics
279
Avg Claims per Provider
Truman Johnson, DDS, MS's 114 claims are below the specialty average of 279.
Nationwide Periodontics peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnson, both outside Iowa so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Periodontics Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Johnson.
One of 47 Periodontics providers enrolled in Iowa, 5 are shown here.
Vrushali Abhyankar
MDS
Iowa City, IA
Gary Amerman
DDS MS
West Des Moines, IA
Dr. Guy Bilek
D.D.S., M.S.
West Des Moines, IA
Dr. Daniel Bolgren
D.D.S
Dubuque, IA
Dr. Derek Borgwardt
D.D.S.
Iowa City, IA
Compare Periodontics nationally: see state-by-state distribution →
Frequently Asked Questions
What is Truman Johnson, DDS, MS's specialty? ▼
Truman Johnson, DDS, MS specializes in Periodontics and practices in Cedar Rapids, Iowa. Credentials: DDS, MS.
How much does Truman Johnson, DDS, MS prescribe under Medicare Part D? ▼
In 2024, Truman Johnson, DDS, MS wrote 114 Medicare Part D claims totaling $525 in drug costs for 46 beneficiaries.
Where is Truman Johnson, DDS, MS located? ▼
Truman Johnson, DDS, MS is located at 3900 RIVER RIDGE DRIVE NE, Cedar Rapids, IA, 52402. Phone: (319) 363-9880.
What is Truman Johnson, DDS, MS's NPI number? ▼
Truman Johnson, DDS, MS's National Provider Identifier (NPI) is 1164609384, issued on 01/30/2008.
How many Periodontics providers are there in the US? ▼
There are 6,120 Periodontics providers across 53 states in the US. The average Periodontics provider writes 279 Medicare Part D claims per year.
What drugs does Truman Johnson, DDS, MS prescribe most often? ▼
Based on 2024 Medicare Part D data, Truman Johnson, DDS, MS's most frequently prescribed drugs include Amoxicillin, Chlorhexidine Gluconate, Etodolac. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Truman Johnson, DDS, MS accept Medicare? ▼
Truman Johnson, DDS, MS appears in CMS Medicare data with 114 Part D claims and 46 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Truman Johnson, DDS, MS's credentials? ▼
Truman Johnson, DDS, MS's NPI is 1164609384 with credentials DDS, MS. 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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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.